- K. Kikuchi, "Fundamentals of coherent optical fiber communications (Tutorial review)," J. Lightwave Technol., vol.32, no.1, pp.157-179, 2016, DOI: 10.1109/JLT.2015.2463719.
- S. Ishimura and K. Kikuchi, "Multi-dimensional permutation-modulation format for coherent optical communications,'' Optics Express, vol.23, no.12, pp.15587-15597, June 2015.
- S. Ishimura and K. Kikuchi, "Eight-state trellis-coded optical modulation
with signal constellation of four-dimensional
*M*-ary quadrature-amplitude modulation," Optics Express vol. 23, no. 5, pp. 6692–6704, Feb. 2015. - K. Kikuchi and S. Kawakami, "Multi-level signaling in the Stokes space and its application to large-capacity optical communications," Optics Express, vol.22. no.7, pp.7374-7387, April 2014.
- Md. S. Faruk, Y. Mori, and K. Kikuchi, "In-band estimation of optical signal-to-noise ratio from equalized signals in digital coherent receivers," IEEE Photonics J., vol.6, no.1, 7800109, Feb., 2014
- K. Kikuchi, "Electronic polarization-division demultiplexing based on digital signal processing in intensity-modulation direct-detection optical communication systems," Optics Express vol. 22, no. 2, pp. 1971–1980, Jan. 2014
- Md. S. Faruk and K. Kikuchi, “Compensation for in-phase/quadrature imbalance in coherent-receiver front end for optical quadrature amplitude modulation,” IEEE Photonics J., vol.5, no.2, 7800110, April, 2013
- Y. Mori, C. Zhang, and K. Kikuchi, "Novel configuration of finite-impulse-response filters tolerant to carrier-phase fluctuations in digital coherent optical receivers for higher-order quadrature amplitude modulation signals," Optics Express, vol.20, no.24, pp.26236-26251, Nov. 2012
- K. Kikuchi , "Characterization of semiconductor-laser phase noise and estimation of bit-error rate performance with low-speed offline digital coherent receivers,'' Optics Express, vol.20, no.5, pp.5291-5302, Feb. 2012
- K. Kikuchi and M. Osaki, "Highly-sensitive coherent optical detection
of
*M*-ary frequency-shift keying signal," Optics Express, vol.19, no.16, pp.B32-B39, Dec. 2011 - K. Kikuchi, “Digital coherent optical communication systems: Fundamentals and future prospects,” IEICE Electronics Express, vol.8, no.20, pp.1642-1662, Oct. 2011
- K. Kikuchi, “Analyses of wavelength- and polarization-division multiplexed transmission characteristics of optical quadrature-amplitude- modulation signals,”Optics Express, vol.19, no.19, pp.17985-17995, Sept. 2011
- Md. S. Faruk and K. Kikuchi, “Adaptive frequency-domain equalization in digital coherent receivers,” Optics Express, vol.19, no.13, pp.12789-12798, June 2011
- K. Kikuchi, “Performance analyses of polarization demultiplexing based on constant-modulus algorithm in digital coherent optical receivers,” Optics Express，vol.19, no.10, pp. 9868–9880, May 2011
- K. Kikuchi, “Clock recovering characteristics of adaptive finite-impulse-response filters in digital coherent optical receivers,” Optics Express, vol.19, no.6, pp.5611–5619, March 2011
- Md. S. Faruk, Y. Mori, C. Zhang, K. Igarashi, and K. Kikuchi, “Multi-impairment monitoring from adaptive finite-impulse-response filters in a digital coherent receiver,” Optics Express, vol.18, no.26, pp.26929–26936, Dec. 2010
- H. C. Lim, A. Yoshizawa, H. Tsuchida, and K. Kikuchi, “Wavelength-multiplexed entanglement distribution,” Optical Fiber Technology, vol.16, no.4, pp. 225-235, August 2010
- K. Kikuchi, “Ultra long-haul optical transmission characteristics of wavelength-division multiplexed dual-polarisation 16-quadrature-amplitude-modulation signals,” Electron. Lett., vol.46, no.6, pp.433-434, March 2010
- Md. Khairuzzaman, C. Zhang, K. Igarashi, K. Katoh, and K. Kikuchi, “Equalization of nonlinear transmission impairments by maximum-likelihood-sequence estimation in digital coherent receivers,” Optics Express, vol.18, no.5, pp.4776-4782, March 2010
- C. Zhang, Y. Mori, K. Igarashi, K. Katoh, and K. Kikuchi, “Ultrafast operation of digital coherent receivers using their time-division demultiplexing function,”IEEE Journal of Lightwave Technology, vol. 27, no. 3, pp.224-232, Feb. 2009
- Y. Mori, C. Zhang, K. Igarashi, K. Katoh, and K. Kikuchi, “Unrepeated 200-km transmission of 40-Gbit/s 16-QAM signals using digital coherent receiver,”Optics Express, vol. 17, no. 32, pp.1435-1441, Feb. 2009
- H. C. Lim, A. Yoshizawa, H. Tsuchida, and K. Kikuchi, “Wavelength-multiplexed distribution of highly entangled photon-pairs over optical fiber,” Optics Express, vol.16, no.26, pp.22099-22104, Dec. 2008
- H. C. Lim, A. Yoshizawa, H. Tsuchida, and K. Kikuchi, “Broadband source of telecom-band polarization-entangled photon-pairs for wavelength-multiplexed entanglement distribution,” Optics Express, vol.16, no.20, pp.16052-16057, Sept. 2008
- H. C. Lim, A. Yoshizawa, H. Tsuchida, and K. Kikuchi, “Distribution of polarization-entangled photon-pairs produced via spontaneous parametric down-conversion within a local-area fiber network: Theoretical model and experiment,” Optics Express, vol.16, no.19, pp.14512-14523, Sept. 2008
- H. C. Lim, A. Yoshizawa, H. Tsuchida, and K. Kikuchi, “Stable source of high quality telecom-band polarization-entangled photon-pairs based on a single, pulse-pumped, short PPLN waveguide,” Optics Express, vol.16, no.17, pp.12460-12468, Aug. 2008
- K. Igarashi and K. Kikuchi, “Optical signal processing by phase modulation and subsequent spectral ﬁltering aiming at applications to ultrafast optical communication systems,” IEEE J. Sel. Topics Quantum Electron., vol.14, no.3, pp.551-565, May/June 2008
- K. Kikuchi and S. Tsukamoto, “Evaluation of sensitivity of the digital coherent receiver,” J. Lightwave. Technol., vol. 26, no. 13, pp.1817-1822, July 2008
- K. Kikuchi, “Electronic post-compensation for nonlinear phase fluctuations in a 1000-km 20-Gbit/s optical quadrature phase-shift keying transmission system using the digital coherent receiver,” Optics Express, vol.16, no.2, pp.889-896, Jan. 2008
- Pasu Kaewplung and K. Kikuchi, “Simultaneous cancellation of fiber loss, dispersion, and Kerr effect in ultralong-haul optical fiber transmission by midway optical phase conjugation incorporated with distributed Raman amplification,” J. Lightwave Technol., vol.25, no.10, pp.3035-3050, Nov. 2007
- Budiman Dabarsyah, Chee Seong Goh, Sunil K. Khijwania, S. Y. Set, K. Katoh, and K. Kikuchi, “Adjustable group velocity dispersion and dispersion slope compensation devices with wavelength tunability based on enhanced thermal chirping of fiber Bragg gratings,” J. of Lightwave Technol., vol. 25, no. 9, pp. 2711-2718, Sept. 2007
- K. Igarashi, K. Katoh, and K. Kikuchi, “Optoelectronic time-division demultiplexing of 160-Gbit/s optical signal based on phase modulation and spectral filtering,” Optics Express, vol.15, no.3, pp.845-851, Feb. 2007
- K. H. Fong, C. S. Goh, S. Y. Set, R. Grange, M. Haiml, A. Schlatter, U. Keller, and K.Kikuchi, “Solid-state Er:Yb:glass laser mode-locked by using single-wall carbon nanotube thin film,” Opt. Lett., vol.32, no.1, pp.38-40, Jan. 2007
- J. H. Lee, T. Nagashima, T. Hasegawa, S. Ohara, N. Sugimoto, Y. G. Han, S. B. Lee, and K. Kikuchi, “Output performance investigation of self-phase-modulation-based 2R regenerator using bismuth oxide nonlinear fiber,” IEEE Photonics Technol. Lett., vol.18, no.12, pp.1296-1298, June 2006
- T. Tanemura and K. Kikuchi, “Circular-birefringence fiber for nonlinear optical signal processing,” J. Lightwave Technol., vol.24, no.11, pp.4108-4119, Nov. 2006
- K. Kikuchi, “Phase-diversity homodyne detection of multi-level optical modulation with digital carrier phase estimation,” IEEE J. Selected Topics on Quantum. Electron., vol.12, no.4, pp.563-570, July/Aug. 2006
- S. Tsukamoto, K. Katoh, and K. Kikuchi, “Coherent demodulation of optical multilevel phase shift-keying signals using homodyne detection and digital signal processing,” IEEE Photon. Technol. Lett., vol.18, no.10, pp.1131-1133, May 2006
- S. Tsukamoto, K. Katoh, and K. Kikuchi, “Unrepeated transmission of 20-Gbit/s optical quadrature phase-shift keying signal over 200-km standard single-mode fiber based on digital processing of homodyne-detected signal for group-velocity dispersion compensation,” IEEE Photon. Tech- nol. Lett., vol.18, no.9, pp.1016-1018, May 2006
- K. Igarashi, K. Katoh, and K. Kikuchi, “Prescaled phase-locked loop using phase modulation and spectral filtering and its application to clock extraction from 160-Gbit/s optical-time-division multiplexed signal,” Optics Express, vol.14, no.9, pp.4087-4091, May 2006
- J. H. Lee, C. H. Kim, Y.-G. Han,.S.B. Lee, T. Nagashima, T. Hasegawa, S. Ohara, N. Sugimoto, and K. Kikuchi, “Bismuth nonlinear fibre-based optical phase conjugator without SBS-induced effciency limitation and its application to dispersion compensation in transmission link,” Electron. Lett., vol.42, no.5, pp.298-299, March 2006
- T. Tanemura and K. Kikuchi, “Observation of elliptical polarization rotation in a long twisted fiber,” Opt. Lett., vol.14, no.4, pp. 1408-1412, Feb. 2006
- T. Tanemura, J. H. Lee, D. Wang, K. Katoh, and K. Kikuchi, “Polarization-insensitive 160-Gb/s wavelength converter with all-optical repolarizing function using circular-birefringence highly nonlinear fiber,” Opt. Express, vol.14, no.4, pp. 1408-1412, Feb. 2006
- J. H. Lee, T. Nagashima, T. Hasegawa, S. Ohara, N. Sugimoto, and K. Kikuchi, “Wideband tunable wavelength conversion of 10-Gb/s nonreturn-to-zero signal using cross-phase-modulation-induced polarization rotation in 1-m Bismuth Oxide-based nonlinear optical fiber,” IEEE Photonics Technol. Lett., vol.18, no.1, pp. 298- 300, Jan. 2006
- D.-S. Ly-Gagnon, S. Tsukamoto, K. Katoh, and K. Kikuchi, “Coherent detection of optical quadrature phase-shift keying signals with carrier phase estimation,”J. of Lightwave Technol., vol.24, no.1, pp.12- 21, Jan. 2006
- J. H. Lee, T. Nagashima, T. Hasegawa, S. Ohara, N. Sugimoto, and K. Kikuchi, “Bismuth-Oxide-based nonlinear fiber with a high SBS threshold and its application to four-wave-mixing wavelength conversion using a pure continuous-wave pump,”J of Lightwave Technol., vol.24, no.1, pp. 22- 28, Jan 2006
- J. H. Lee, T. Nagashima, T. Hasegawa, S. Ohara, N. Sugimoto, and K. Kikuchi, “Clock recovery and demultiplexing of high-speed OTDM signal through combined use of bismuth oxide nonlinear fiber and erbium-doped bismuth oxide fiber,” IEEE Photonics Technol. Lett., vol.17, no.12, pp.2658- 2660, Dec. 2005
- J.H. Lee, T. Tanemura, Y. Takushima, and K. Kikuchi, “All-optical 80-Gb/s add-drop multiplexer using fiber-based nonlinear optical loop mirror,” IEEE Photonics Technol. Lett., vol.17, no.4, pp.840-842, April 2005
- J. H. Lee, T. Nagashima, T. Hasegawa, S. Ohara, N. Sugimoto, and K. Kikuchi, “Bismuth oxide nonlinear fibre-based 80 Gbit/s wavelength conversion and demultiplexing using cross-phase modulation and filtering scheme,” Electron. Lett., vol. 41, no.22, pp. 1237-1238, Oct. 2005
- J. H. Lee, Y. Takushima, and K. Kikuchi, “Continuous-wave supercontinuum laser based on erbium-doped fiber ring cavity incorporating a highly nonlinear optical fiber,” Opt. Lett., vol.30, no.19, pp.2599-2601, Oct. 2005
- J. H. Lee, T. Nagashima, T. Hasegawa, S. Ohara, N. Sugimoto, and K. Kikuchi, “40 Gbit/s XOR and AND gates using polarisation switching within 1 m-long bismuth oxide-based nonlinear fibre,” Electron. Lett., vol.41, no.19, pp. 1074- 1075, Sept. 2005
- T. Tanemura, K. Katoh, and K. Kikuchi, “Polarization-insensitive asymmetric four-wave mixing using circularly polarized pumps in a twisted fiber,” Opt. Express, vol.13, no.19, pp.7497-7505, Sept. 2005
- J. H. Lee, K. Kikuchi, T. Nagashima, T. Hasegawa, S. Ohara, and N. Sugimoto, “All fiber-based 160-Gbit/s add/drop multiplexer incorporating a 1-m-long Bismuth Oxide-based ultra-high nonlinearity fiber,” Opt. Express, vol.13, no.18, pp.6864-6869, Sept. 2005
- J. H. Lee, T. Nagashima, T. Hasegawa, S. Ohara, N. Sugimoto, and K. Kikuchi, “Wavelength conversion of 160 Gbit/s OTDM signal using bismuth oxide-based ultra-high nonlinearity fibre,” Electron. Lett., vol.41, no.16, pp.49-50, August 2005
- J. H. Lee, T. Nagashima, T. Hasegawa, S. Ohara, N. Sugimoto, and K. Kikuchi, “Four-wave- mixing-based wavelength conversion of 40-Gb/s nonreturn-to-zero signal using 40-cm bismuth oxide nonlinear optical ﬁber,” IEEE Photonics Technol. Lett., vol.17, no.7, pp. 1474- 1476, July 2005
- J. H. Lee, T. Tanemura, K. Kikuchi, T. Nagashima, T. Hasegawa, S. Ohara, and N. Sugimoto, “Experimental comparison of a Kerr nonlinearity figure of merit including the stimulated Brillouin scattering threshold for state-of-the-art nonlinear optical fibers,” Opt. Lett., vol.30, no.13, pp. 1698-1700, July 2005
- J. H. Lee and K. Kikuchi, “Experimental performance comparison for various continuous-wave supercontinuum schemes: ring cavity and single pass,” Opt. Express, vol.13, no.13, pp.4848-4853, June 2005
- J. H. Lee, T. Tanemura, K. Kikuchi, T. Nagashima, T. Hasegawa, S. Ohara, and N. Sugimoto, “Use of 1-m Bi2O3 nonlinear fiber for 160-Gbit/s optical time-division demultiplexing based on polarization rotation and a wavelength shift induced by cross-phase modulation,” Opt. Lett., vol.30, no.11, pp.1267-1269, June 2005
- T. Sakamoto and K. Kikuchi, “160-Gb/s operation of nonlinear optical loop-mirror with an optical bias controller,” IEEE Photonics Technol. Lett., vol.17, no.5, pp.1058-1060, May 2005
- T. Tanemura, J. Suzuki, K. Katoh, and K. Kikuchi, “Polarization-insensitive all-optical wavelength conversion using cross-phase modulation in twisted fiber and optical filtering,” IEEE Photonics Technol. Lett., vol.17, no.5, pp.1052-1054, May 2005
- Y. Ozeki, Y. Takushima, K. Aiso, and K. Kikuchi, “High repetition-rate similariton generation in normal dispersion Erbium-doped fiber ampliﬁers and its application to multi-wavelength light sources,” IEICE Trans. Electron., vol.E88-C, no.5, pp.904-911, May 2005
- J. H. Lee, K. Kikuchi, T. Nagashima, T. Hasegawa, S. Ohara, and N. Sugimoto,
“All-fiber 80- Gbit/s wavelength converter using 1-m-long Bismuth Oxide-based
nonlinear optical ﬁber with a nonlinearity g of 1100 W
^{−1}km^{−1},” Opt. Express, vol.13, no.8, pp. 3144-3149, April 2005 - D.-S. Ly-Gagnon, K.Katoh, and K. Kikuchi, “Unrepeated transmission of 20-Gbit/s quadrature phase-shift keying signals over 210 km using a homodyne phase-diversity receiver and digital signal processing,” Electron. Lett., vol.41, no.4, pp.59-60, 2005
- C.S.Goh, S.Y.Set, and K. Kikuchi, “Spectrum tuning of fiber Bragg grating by strain distributions and its applications,” IEICE Trans. Electron., vol.E88-C, no.3, pp.363-371, 2005
- J.Suzuki, T.Tanemura, K.Taira, Y.Ozeki, and K.Kikuchi, “All-optical regenerator using wavelength shift induced by cross-phase modulation in highly nonlinear dispersion-shifted fiber,” IEEE Photonics Technol. Lett., vol.17, no.2, pp.423-425, 2005
- Y.Ozeki, Y.Takushima, H.Yoshimi, K.Kikuchi, H.Yamauchi, and H.Taga, “Complete charac- terization of picosecond optical pulses in long-haul dispersion-managed transmission systems,” IEEE Photonics Technol. Lett., vol.17, no.3, pp.648-650, 2005
- Y. Takushima, K. Yasunaka, Y. Ozeki, and K. Kikuchi, “87 nm bandwidth noise-like pulse generation from erbium-doped fibre laser,” Electron. Lett.,vol.41, no.7, pp.399-400, 31 March 2005
- Y. Ozeki, Y.Takushima, K.Aiso, K.Taira, and K.Kikuchi, “Generation of 10 GHz similariton pulse trains from 1.2 km-long erbium-doped fibre ampliﬁer for application to multi-wavelength pulse source,” Electron. Lett., vol.40, no.18, pp.1103-1104, 2004
- T.Tanemura, Y.Ozeki, and K. Kikuchi, “Modulation instability and parametric amplification induced by loss dispersion in optical fibers,” Phys. Rev. Lett., vol.93, no.16, pp.163902-1-163902-4, 2004
- J. Suzuki, K. Taira, Y. Fukuchi, Y. Ozeki, T. Tanemura, and K. Kikuchi, “All-optical time-division add-drop multiplexer using optical fibre Kerr shutter,”Electron. Lett., vol.40, no.7, pp.445-446, April 2004
- T. Sakamoto, A. Okada, O. Moriwaki, M. Matsuoka, and K. Kikuchi, “Performance analysis of variable optical delay circuit using highly nonlinear fiber parametric wavelength converters,” J. Lightwave Technol., vol.22, no.3, pp.874-881, March 2004
- T. Tanemura, C. S. Goh, K. Kikuchi, and S. Y. Set, “Highly effcient arbitrary wavelength conversion within entire C-band based on nondegenerate fiber four-wave mixing,” IEEE Photonics Technol. Lett., vol.16, no.2, pp.551-553, Feb. 2004
- C. S. Goh, S. Y. Set, and K. Kikuchi, “Design and fabrication of a Tunable dispersion-slope compensating module based on strain-chirped fiber Bragg gratings,” IEEE Photonics Technol. Lett., vol.16, no.2, 524-526, Feb. 2004
- T. Sakamoto and K. Kikuchi, “Nonlinear optical loop mirror with an optical bias controller for achieving full-swing operation of gate switching,” IEEE Photonics Technol. Lett., vol.16, no.2, 545-547, Feb. 2004
- T. Sakamoto, K. Seo, K. Taira, N. S. Moon, and K. Kikuchi, “Polarization-insensitive all-optical time-division demultiplexing using a fiber four-wave mixer with a peak-holding optical phase-locked loop,” IEEE Photonics Technol. Lett.,vol.16, no.2, 563-565, Feb. 2004
- S.Y. Set, M. Jablonski, K. Hsu, C. S. Goh, and K. Kikuchi, “Rapid amplitude and group-delay measurement system based on intra-cavity-modulated swept-lasers,” IEEE Transactions on Instrumentation and Measurement, vol.53, no.1, pp.192-196, Feb. 2004
- K. Taira and K. Kikuchi, “Picosecond pulse generation with a high extinction ratio employing an electroabsorption modulator, a fiber compressor, and a self-phase-modulation-based pulse reshaper,” Electron. Lett., vol.40, no.1, pp. 15-16, Jan. 2004
- Y. Takushima, H. Yoshimi, Y. Ozeki, K. Kikuchi, H. Yamauchi, and H. Taga, “In-service dispersion monitoring in 32x10.7Gbps WDM transmission system over trans-Atlantic distance using optical frequency-modulation method,” IEEE/OSA J. Lightwave Technol., vol.22, no.1, pp.257-265, Jan. 2004
- T. Tanemura and K. Kikuchi, “Unified analysis of modulational instability induced by cross-phase modulation in optical fibers,” J. Opt. Soc. Am. B, vol.20, no. 12, pp. 2502-2514, Dec.2003
- M. Jablonski, K. Sato, D. Tanaka, H. Yaguchi, S. Y. Set, K. Furuki, K. Yamada, B. Buchholtz, Y.Tanaka, and K. Kikuchi, “A compact thin-film-based all-pass device for the compensation of the in-band dispersion in FBG filters,” IEEE Photonics Technol. Lett., vol.15, no.12, pp.1725-1727, Dec. 2003
- T. Tanemura and K. Kikuchi, “Polarization- independent broad-band wavelength conversion using two-pump fiber optical parametric amplification without idler spectral broadening,” IEEE Photonics Technol. Lett., vol. 15, no. 11, pp.1573-1575, Nov. 2003
- S. K. Khijwania, C. S. Goh, S. Y .Set, and K. Kikuchi, “A novel tunable dispersion slope compensator based on nonlinearly thermally chirped fiber Bragg grating,” Optics Communications, vol.227, no.1-3, pp.107-113, Nov. 2003
- K. Taira and K. Kikuchi, “Sub-picosecond pulse generation using an electroabsorption modulator and a double-stage pulse compressor,” IEEE Photonics Technol. Lett., vol.15, no.9, pp.1288-1290, 2003
- M.R. Mokhtar, C.S. Goh, S.A. Butler, S.Y. Set, K. Kikuchi, D.J. Richardson, and M. Ibsen, “Fibre Bragg grating compression-tuned over 110 nm,” Electron. Lett., vol.39, no.6, pp.509-511, March 2003
- Y. Takushima, H. Yoshimi, K. Kikuchi, H. Yamauchi, and H.Taga, “Experimental demonstration of in-service dispersion monitoring in 960-km WDM transmission system using optical frequency-modulation method,” IEEE Photonics Technol. Lett., vol.15, no.6, pp. 870 -872, June 2003
- P. Kaewplung, T. Angkaew, and K. Kikuchi, “Simultaneous suppression of third-order dispersion and sideband instability in single-channel optical fiber transmission by midway optical phase conjugation employing higher order dispersion management,” J. of Lightwave Technol., vol.21, no.6, pp.1465-1473, June 2003
- S.Y.Set, C.S. Goh, and K. Kikuchi, “Multi-gigahertz pulse train generation in a figure-8 laser incorporating a sampled fiber Bragg grating,” IEICE Trans. on Electron., vol.E86-C, no.5, pp.699-704, May 2003
- C.S. Goh, M.R. Mokhtar, S.A. Butler, S.Y. Set, K. Kikuchi, and M. Ibsen, “Wavelength tuning of fiber Bragg gratings over 90 nm using a simple tuning package,” IEEE Photonics Technol. Lett., vol.15, no.4, pp.557-559, April 2003
- Y. Fukuchi, T. Sakamoto, K. Taira, and K. Kikuchi, “All-optical time-division demultiplexing of 160 Gbit/s signal using cascaded second-order nonlinear effect in quasi-phase matched LiNbO3 waveguide device,” Electron. Lett., vol.39, no.10, pp. 789-790, 15 May 2003
- Budiman Dabarsyah, C. S. Goh, S. K. Khijwania, S. Y. Set, K. Katoh, and K. Kikuchi, “Ad justable dispersion compensation devices with wavelength tunability based on enhanced thermal chirping of fiber Bragg gratings,” IEEE Photonics Technol. Lett., vol.15, no.3, pp.416-418, 2003
- T. Sakamoto, A. Okada, O. Moriwaki, M. Matsuoka, and K. Kikuchi, “Variable optical delay circuit using highly nonlinear fibre parametric wavelength convertors,” Electron. Lett., 2003, vol.39, no.2, pp.198-200, Jan. 2003
- N.S. Moon and K. Kikuchi, “N×N multiwavelength cross connect based on tunable fiber Bragg gratings,” IEEE/OSA J. Lightwave Technol., vol.21, no.3, pp.703 -718, 2003
- P. Kaewplung, T. Angkaew, and K. Kikuchi, “Complete analysis sideband instability in chain of periodic dispersion-managed fiber link and its effect on higher order dispersion-managed long-haul wavelength-division multiplexed systems,” IEEE/OSA J. Lightwave Technol., vol.20, no.11, pp.1895-1907, 2002
- Y. Ozeki, K. Taira, K. Aiso, Y. Takushima, and K. Kikuchi, “Highly flat super-continuum generation from 2 ps pulses using 1 km-long erbium-doped fibre amplifier,” Electron. Lett., vol.38, no.25, pp.1642-1643, Dec. 2002
- T. Sakamoto, Han Chuen Lim, and K. Kikuchi, “All-optical polarization-insensitive time-division demultiplexer using a nonlinear optical loop mirror with a pair of short polarization-maintaining fibers,” IEEE Photonics Technol. Lett., vol.14, no.12, pp.1737-1739, 2002
- K. Taira, Y. Fukuchi, R. Ohta, K. Katoh, and K. Kikuchi, “Background-free intensity autocor- relator employing a Si avalanche photodiode as a two-photon absorber,” Electron. Lett., vol.38, no.23, pp. 1465-1466, Nov. 2002
- Y. Fukuchi and K. Kikuchi, “Novel design method for all-optical ultrafast gate switches using cascaded second-order nonlinear effect in quasi-phase matched LiNbO3 devices,” IEEE Photonics Technol. Lett., vol.14, no.10, pp.1409-1411, 2002
- Y. Fukuchi, T. Sakamoto, K. Taira, K. Kikuchi, D. Kunimatsu, A. Suzuki, and H. Ito, “Speed limit of all-optical gate switches using cascaded second-order nonlinear effect in quasi-phase-matched LiNbO3 devices,” IEEE Photonics Technol. Lett., vol.14, no.9, pp.1267-1269, 2002
- C.S. Goh, S.Y. Set, and K. Kikuchi, “Widely tunable optical filters based on fiber Bragg grat ings,” IEEE Photonics Technol. Lett., vol.14, no.9, pp.1306-1308, 2002
- T. Tanemura, Y. Takushima, and K. Kikuchi, “Narrowband optical filter, with variable transmission spectrum, using stimulated Brillouin scattering in optical fiber,” Opt. Lett., vol.27, no.17, pp.1552-1554, Sept. 2002
- K. Kikuchi and K. Katoh, “Differential detection of single modulation sideband for ultra-dense optical frequency-division multiplexed systems,” Electron. Lett., vol.38, no.17, pp.980-981, Aug.2002
- C.S. Goh, S.Y. Set, K. Taira, S.K. Khijwania, and K. Kikuchi, “Nonlinearly strain-chirped fiber Bragg grating with an adjustable dispersion slope,” IEEE Photonics Technol. Lett., vol.14, no.5, pp.663-665, 2002
- P. Kaewplung, T. Angkaew, and K. Kikuchi, “Feasibility of 100-Gb/s 10000-km single-channel optical transmission by midway optical phase conjugation incorporated with third-order dispersion compensation,” IEEE Photonics Technol. Lett., vo.13, no.4, pp.293-295, 2002
- K. Kikuchi and K. Katoh, “Optical heterodyne receiver for selecting densely frequency-division- multiplexed signals,” Electron. Lett., vol.38, no.6, pp.283-285, March 2002
- K. Kikuchi, K. Taira, and N. Sugimoto, “Highly-nonlinear Bismuth Oxide-based glass fibres for all-optical signal processing,” Electron. Lett. vol.38, no.4, pp.166-167, 2002
- Y. Takushima, T. Douke, X. Wang, and K. Kikuchi, “Dispersion tolerance and transmission distance of a 40-Gb/s dispersion management soliton transmission system,” IEEE/OSA J. Light- wave Technol., vol. 20, no. 3, March 2002
- M. Ibsen, S. Y. Set, C. S. Goh, and K. Kikuchi, “Broad-band continuously tunable all-fiber DFB lasers,” IEEE Photonics Technol. Lett., vol.14, no.1, pp.21-23, 2002
- N. S. Moon and K. Kikuchi, “N×N optical cross-connect based on tunable fibre Bragg gratings with high channel scalability,” Electron. Lett., vol.37, no.23, pp.1402-1404, 2001
- T. Tanemura, H. C. Lim, and K. Kikuchi, “Suppression of idler spectral broadening in highly effcient fiber four-wave-mixing by binary-phase-shift keying modulation of pump wave,” IEEE Photonics Technol. Lett., vol.13, no.12, pp.1328 -1330, 2001
- M. Jablonski, Y. Tanaka, H.Yaguchi, K.Furuki, K.Sato, N.Higashi and K.Kikuchi, “Entirely thin-film allpass coupled-cavity filters in a parallel configuration for adjustable dispersion-slope compensation,” IEEE Photonics Technol. Lett., vol.13, no.11, pp.1188 -1190, 2001
- Y. Takushima, T. Douke, and K. Kikuchi, “Influence of polarization-mode dispersion on soliton interaction in dispersion-managed soliton transmission systems,”Electron. Lett., vol.37, no.13, pp.849-850, 2001
- Y. Takushima and K. Kikuchi, “In-service monitor for group-velocity dispersion of optical fibre transmission systems,” Electron. Lett., vol.37, no.12, pp.743-745, 2001
- N. S. Moon, T. Sakamoto, Y. Takushima, and K. Kikuchi, “Experimental verification of Gaussian approximation model of multiple intraband crosstalk in wavelength-division multiplexed networks using recirculating fiber loop,” IEEE Photonics Technol. Lett., vol.13, no.9, pp.1038-1040, 2001
- T. Sakamoto and K. Kikuchi, “Analyses of all-optically regenerated transmission system using nonlinear interferometric switches,” IEEE Photonics Technol. Lett., vol.13, no.9, pp.1020-1022, 2001
- M. Jablonski, Y. Takushima, and K. Kikuchi, “The realization of all-pass filters for third-order dispersion compensation in ultrafast optical fiber transmission systems,” J. Lightwave Technol., vol.19, no.8, pp.1194-1205, 2001
- K. Taira and K. Kikuchi, “Optical sampling system at 1.55 µm for the measurement of pulse waveform and phase employing sonogram characterization,” IEEE Photonics Technol. Lett., vol.13, no.5, pp.505-507, 2001
- T. Sakamoto, F. Futami, K. Kikuchi, S. Takeda, Y. Sugaya, and S. Watanabe, “All-optical wavelength conversion of 500-fs pulse trains by using nonlinear-optical loop mirror composed of a highly nonlinear dispersion-shifted fiber,” IEEE Photonics Technol. Lett., vol.13, no.5, pp.502-504, 2001
- H.C. Lim and K. Kikuchi, “A ﬁlter-free scheme for orthogonally pumped polarization-insensitive optical phase conjugation of broad-band optical signals,” IEEE Photonics Technol. Lett., vol.13, no.5, pp.481-483, 2001
- K. Kikuchi and K. Taira, “Theory of sonogram characterization of optical pulses,” IEEE J.Quantum Electron., vol.37, no.4, pp.533-537, 2001
- P. Kaewplung, T. Angkaew, and K. Kikuchi, “Feasibility of 100-Gbit/s 10000-km single-channel optical transmission by midway optical phase conjugation incorporated with third-order dispersion compensation,” IEEE Photonics Technol. Lett., vol.13, no.4, pp.293-295, 2001
- K. Taira and K. Kikuchi, “Frequency-resolved optical cross-correlator for complete and rapid retrieval of waveform and phase of optical pulses at 1.55 µm,” Electron. Lett., vol.37, no.5, pp.311-312, 2001
- F. Futami and K. Kikuchi, “Low-noise multiwavelength pulse source using spectrum-sliced super-continuum generated from a normal group-velocity dispersion fiber,” IEEE Photonics Technology Lett., vol.13, no.1,pp.73-75, 2001
- Han Chuen Lim, T. Sakamoto, and K. Kikuchi, “Polarization-independent optical demultiplexing by conventional nonlinear optical loop mirror in a polarization-diversity loop configuration,” IEEE Photonics Technol. Lett. vol.12, no.12, pp.1704-1706, 2000
- D. Kunimatsu, C. Q. Xu, D. Pelusi, X. Wang, K. Kikuchi, H. Ito, and A. Suzuki, “Sub-picosecond pulse transmission over 144 km using midway optical phase conjugation via a cascaded second-order process in a LiNbO3 waveguide,” IEEE Photonics Technol. Lett., vol.12, no.12, pp.1621-1623, 2000
- K. Taira and K. Kikuchi, “Highly-sensitive frequency-resolved optical gating in the 1.55 µm region using an organic nonlinear optical crystal for second-harmonic generation,” Electron. Lett., vol.36, no.20, pp.1719-1720, 2000
- M. Pelusi, X. Wang, F. Futami, K. Kikuchi, and A. Suzuki, “Fourth-order dispersion compensation for 250-fs pulse transmission over 139-km optical fiber,”IEEE Photonics Technol. Lett., vol.12, no.7, pp.795-797, 2000
- M. Jablonski, Y. Takushima, K. Kikuchi, Y. Tanaka, K. Furuki, K. Sato, and N. Higashi, “Layered optical thin-film allpass dispersion equalizer (LOTADE) for compensation of the dispersion slope of optical fibers,” Electron. Lett., vol.36, no.13, pp.1139-1141, 2000
- M. Jablonski, Y. Takushima, K. Kikuchi, Y. Tanaka, and S. Higashi, “Adjustable coupled two-cavity allpass ﬁlter for dispersion slope compensation of optical fibres,” Electron. Lett., vol.36, no.6, pp.511-512, 2000
- F. Futami, K. Taira, K. Kikuchi, and A. Suzuki, “Wideband fibre dispersion equalisation up to fourth-order for long-distance sub-picosecond optical pulse transmission,” Electron. Lett., vol.35, no.25, pp.2221-2223, 1999
- Han Chuen Lim, F. Futami, K. Taira, and K. Kikuchi, “Broad-band mid-span spectral inversion without wavelength shift of 1.7-ps optical pulses using a highly nonlinear fiber Sagnac interferometer, IEEE Photonics Technol. Lett., vol.11, no.11, pp.1405-1407, 1999
- F. Futami, Y. Takushima, and K. Kikuchi, “Generation of wideband and flat supercontinuum over a 280-nm spectral range from a dispersion-flattened optical fiber with normal group-velocity dispersion,” IEICE Trans. on Electron., vol.E82-C, no.8, pp.1531–1538, 1999
- Xiaomin Wang, K. Kikuchi, and Y. Takushima, “Analysis of dispersion-managed optical fiber transmission system using non-return-to-zero pulse format and performance restriction from third-order dispersion,” IEICE Trans. on Electron., vol.E82-C, no.8, pp.1407–1413, 1999
- Fariborz Mousavi Madani and K. Kikuchi, “Design theory of long-distance WDM dispersion managed transmission system,” J. Lightwave Technol., vol.17, no.8, pp.1326–1335, 1999
- Fariborz Mousavi Madani and K. Kikuchi, “Performance limit of long-distance WDM dispersion-managed transmission system using higher-order dispersion compensation fibers,” IEEE Photonics Technol. Lett., vol.11, no.5, pp.608-610, 1999
- Han Chuen Lim, F. Futami, and K. Kikuchi, “Polarization-independent, wavelength-shift-free optical phase conjugator using a nonlinear fiber Sagnac interferometer,” IEEE Photonics Tech- nol. Lett., vol.11, no.5, pp.578-580, 1999
- Y. Takushima, Xiaomin Wang, and K. Kikuchi, “Transmission of 3 ps dispersion-managed soliton pulses over 80-km distance under influence of third-order dispersion,” Electron. Lett., vol.35, no.9, pp.739-740, 1999
- Y. Takushima and K. Kikuchi, “10-GHz, over 20-channel multiwavelength pulse source by slicing super-continuum spectrum generated in normal-dispersion fiber,” IEEE Photonics Technol. Lett., vol.11, no.3, pp.322-324, 1999
- Y. Takushima and K. Kikuchi, “Gain spectrum equalization of all-optical gain-clamped erbium-doped fiber amplifier,”IEEE Photonics Technol. Lett., vol.11, no.2, pp.176-178, 1999
- Y. Takushima, F. Futami, and K. Kikuchi, “Generation of over 140-nm-wide super-continuum from a normal dispersion fiber by using a mode-locked semiconductor laser source,” IEEE Photonics Technol. Lett., vol.10, no.11, pp.1560-1562, 1998
- F. Futami, Y. Takushima, and K. Kikuchi, “Generation of 10 GHz, 200 fs Fourier-transform-limited optical pulse train from modelocked semiconductor laser at 1.55 µm by pulse compression using dispersion-flattened fibre with normal group-velocity dispersion,” Electron. Lett., vo. 34, no.22, pp.2129-2130, 1998
- K. Kikuchi, F. Futami, and K. Katoh, “Highly sensitive and compact cross-correlator for measurement of picosecond pulse transmission characteristics at 1550 nm using two-photon absorption in Si avalanche photodiode,” Electron. Lett., vol.34, no.22, pp.2161-2162, 1998
- K. Kikuchi and K. Matsuura, “Transmission of 2-ps optical pulses at 1550 nm over 40-km standard fiber using midspan optical phase conjugation in semiconductor optical amplifiers,” IEEE Photonics Technol. Lett., vol.10, no.10, pp.1410-1412, 1998
- Y. Takushima and K. Kikuchi, “Polarisation-stable operation of modulation-instability laser using non-polarisation-maintaining fibres,” Electron. Lett. vol.34, no.13, pp.1323-1324, 1998
- K. Kikuchi, “Optical sampling system at 1.5 µm using two-photon absorption in Si avalanche photodiode,” Electron. Lett., vol.34, no.13, pp.1354-1355, 1998
- Y. Takushima and K. Kikuchi, “Gain stabilization of all-optical gain-clamped amplifier by using Faraday rotator mirrors,” Electron. Lett., vol.34, no.5, pp.458-459, 1998
- K. Kikuchi, “Highly sensitive interferometric autocorrelator using Si avalanche photodiode as two-photon absorber,” Electron. Lett., vol.34, no.1, pp.123-125, 1998
- Y. Takushima, S. Yamashita, K. Kikuchi, and K. Hotate, “Polarization-stable and single-frequency fiber lasers,” IEEE/ OSA J. Lightwave Technol., vol.16, no.4, pp.661-669, 1998
- H. Sotobayashi and K. Kikuchi, “Design theory of ultra-short pulse generation from actively mode-locked fiber lasers,” IEICE Trans. on Electron., vol.E81-C, no.2, pp.201-207, 1998
- F. Futami and K. Kikuchi, “Generation of 113-GHz, 1.8-ps optical pulse trains by Fourier synthethis of four-wave mixing signals obtained from semiconductor optical amplifiers,” Opt. Lett., vol.22, no.24, pp.1873-1875, 1997
- C. Lorattanasane and K. Kikuchi, “Parametric instability of optical-amplifier noise in long-distance optical transmission systems,” IEEE J. Quantum Electron., vol.33, no.7, pp.1068-1074,1997
- C. Lorattanasane and K. Kikuchi, “Design theory of long-distance optical transmission systems using midway optical phase conjugation,” IEEE/OSA J. Lightwave Technol., vol.15, no.6, pp.948-955, 1997
- J. Maeda and K. Kikuchi, “Squeezing characteristics analysis of fundamental-confined second-harmonic generation system by means of self-consistent method," J. Opt. Soc. Am. B, vol.14, no.3, pp.481-493, 1996
- J. Maeda and K. Kikuchi, “Bright squeezing by singly resonant second-harmonic generation: effect of fundamental depletion and feedback,” Opt. Lett., vol.21, no.11, pp.821-823,1996
- C. Lorattanasane and K. Kikuchi, “Design of long-distance optical transmission systems using midway optical phase congugation,” IEEE Photonics. Technol. Lett., vol.7, no.11, pp.1375-1377, 1995
- K. Kikuchi, C. Lorattanasane, F. Futami, and S. Kaneko, “Obserbation of quasi-phase matched four-wave mixing assisted by periodic power variation in a long-distance optical amplifier chain,” IEEE Photonics Technol. Lett., vol.7, no.11, pp.1378-1380, 1995
- Y. Isojima, T. Isoshima, K. Nagai, K. Kikuchi, and H. Nakagawa, “Ultraweak biochemiluminescence detected from rat hippocampal slices,” Neuro Report, vol.6, pp.658-660, 1995
- T. Isoshima, Y. Isojima, K. Hakomori, K. Kikuchi, K. Nagai, and H. Nakagawa, “Ultrahigh sensitivity single-photon detector using Si avalanche photodiode for the measurement of ultraweak biochemiluminescence,” Rev. Sci. Instrum., vol.66, no.4, pp.2922-2926, 1995
- Y. Takushima and K. Kikuchi, “Spectral gain hole burning and modulation instability in a Brillouin fiber amplifier,” Opt. Lett., vol.20, no.1, pp.34-36, 1995
- K. Kikuchi and C. Lorattanasane, “Design of highly effcient four-wave mixing devices using optical fibers,” IEEE Photonics Technol. Lett., vol.6, no.8, pp.992-994, 1994
- K. Kikuchi, K. Watanabe, and K. Katoh, “Amplitude squeezing of a multiple quantum-well distributed-feedback semiconductor laser operating at room temperature—Effect of reduction of spontaneous-emission noise by interferometric method,” vol.65, no.20, pp.2533-2535, 1994
- Y. Takushima and K. Kikuchi, “Photonic switching using spread spectrum technique,” Electron.Lett., vol.30, no.5, pp.436-437, 1994
- D. Ming and K. Kikuchi, “Improvement of fiber Raman soliton laser for femtosecond optical pulse generation,” Fiber and Integrated Optics, vol.13, pp.337-355, 1994
- K. Kikuchi, M. Amano, C. E. Zah, and T. P. Lee, “Analysis of origin of nonlinear gain in 1.5µm semiconductor active layers by highly nondegenerate four-wave mixing,” Appl. Phys. Lett., vol.64, no.5, pp.548-550, 1994
- K. Kikuchi, M. Amano, C. E. Zah, and T. P. Lee, “Measurement of differential gain and linewidth enhancement factor of 1.5-µm strained quantum-well active layers,” IEEE J. Quantum Electron., vol.30, no.2, pp.571-577, 1994
- K. Kikuchi and C. Lorattanasane, “Compensation for pulse waveform distortion in ultra-long distance optical communication systems by using midway optical phase conjugator,” IEEE Photonics Technol. Lett., vol.6, no.1, pp.104-105, 1994
- T. Sudo, Y. Nakano, K. Tada, K. Kikuchi, T. Hirata, and H. Hosomatsu, “Self-suppression effect of longitudinal spatial hole burning in absorptive-grating gain-coupled DFB lasers,” IEEE Photonics Technol. Lett., vol.5, no.11, pp.1276-1278, 1993
- K. Kikuchi, “Enhancement of optical amplifier noise due to the nonlinear refractive index and the group velocity dispersion of optical fibers,” IEEE Photonics Technol. Lett., vol.5, no.2, pp.221-223, 1993
- K. Kikuchi, “Theory of noise in optical amplifiers,” Fiber and Integrated Optics, vol.12, no.4, pp.369-380, 1993
- M. Ding and K. Kikuchi, “Noise characteristics of femtosecond fiber Raman soliton laser with high-Q cavity,” IEEE Photonics Technol. Lett., vol.4, no.10, pp.1109-1112, 1992
- M. Ding and K. Kikuchi, “Realization of femtosecond soliton oscillation in all-fiber Raman laser with soliton self-frequency shift suppression,” IEEE Photonics Technol. Lett., vol.4, no.8, pp.927-930, 1992
- K. Kikuchi and M. Kakui, “Reduction of shot noise with light emitting diodes,” IEEE J. Quan- tum Electron., vol.28, no.7, pp.1626-1630, 1992
- M. Ding and K. Kikuchi, “Limits of long-distance soliton transmission in optical fibers with laser diodes as pulse sources,” IEEE Photonics Technol. Lett., vol.4, no.6, pp.667-670, 1992
- M. Ding and K. Kikuchi, “Analysis of soliton transmission in optical fibers with the soliton self-frequency shift being compensated by distributed frequency dependent gain,” IEEE Photonics Technol. Lett., vol.4, no.5, pp.497-500, 1992
- K. Kikuchi, “Proposal and performance analysis of novel optical homodyne receiver having an optical preamplifier for achieving the receiver sensitivity beyond the shot-noise limit,” IEEE Photonics Technol. Lett., vol.4, no.2, pp.195-197, 1992
- K. Kikuchi, M. Kakui, C. E. Zah, and T. P. Lee, “Observation of highly nondegenerate four-wave mixing in 1.5-µm traveling-wave semiconductor optical amplfiers and estimation of nonlinear gain coeffcient,” IEEE J. Quantum Electron., vol.28, no.1, pp.151-156, 1992
- K. Kikuchi, M. Kakui, C. E. Zah, and T. P. Lee, “Differential gain and linewidth enhancement factor of 1.5µm multiple-quantum well active layers with and without biaxially compressive strain,” IEEE Photonics Technol. Lett., vol.3, no.4, pp.314-317, 1991
- K. Kikuchi, C. E. Zah, and T. P. Lee, “Measurement and analysis of phase noise generated from semiconductor optical amplifier,” IEEE J. Quantum Electron., vol.27, no.3, pp.416-422, 1991
- K. Kikuchi, “Frequency and phase control of light in coherent optical communication systems,” Electronics and communications in Japan, Part 2, vol.74, no.9, pp.1-10, 1991
- K.Kikuchi, “Generalised formula for optical-amplifier noise and its application to Erbium-doped fibre amplifiers,” Electron. Lett., vol.26, no.22, pp.1851-1853, 1990
- K. Kikuchi and H. Tomofuji, “Analysis of oscillation characteristics of separated-electrode DFB laser diode,” IEEE J. Quantum Electron., vol.26, no.10, pp.1717-1727, 1990
- K. Kikuchi, “Static frequency chirping in λ/4-phase-shifted distributed-feedback semiconductor lasers: Influence of carrier density nonuniformity due to spatial hole burning,” IEEE J. Quantum Electron., vol.26, no.1, pp.45-49, 1990
- K. Kikuchi, T. Isoshima, and M.Yamada, “Photon-counting receiver in near-infra-red region: Use of GaInAs avalanche photodiode,” Electron. Lett., vol.25, no.16, pp.1028-1029, 1989
- K. Kikuchi and H. Tomofuji, “Analysis of linewidth of separated-electrode DFB laser diode,” Electron. Lett., vol.25, no.14, pp.916-918, 1989
- K. Kikuchi, “Effect of 1/f-type FM noise on semiconductor-laser linewidth residual in high-power limit,” IEEE J. Quantum Electron., vol.25, no.4, pp.684-688, 1989
- K. Kikuchi and H. Tomofuji, “Performance analysis of separated-electrode DFB laser diode,” Electron. Lett., vol.25, no.2, pp.162-163, 1989
- K. Kikuchi, C. E. Zah, and T. P. Lee, “Amplitude-modulation sideband injection locking characteristics of semiconductor lasers and their applications,” J. Lightwave Technol., vol.6, no.12, pp.1821-1830, 1988
- K. Kikuchi and T. Naito, “Measurement of Raman scattering in single-mode optical fiber by optical-time domain reflectometry,” IEEE J. Quantum Electron., vol.24, no.10, pp.1973-1975,1988
- K. Kikuchi, “Lineshape measurement of semiconductor lasers below threshold,” IEEE J. Quantum Electron., vol.24, no.9, pp.1814-1817, 1988
- K. Kikuchi, “Origin of residual semiconductor-laser linewidth in high-power limit,” Electron.Lett., vol.24, no.16, pp.1001-1002, 1988
- K. Kikuchi and H. Iwasawa, “Measurement of linewidth enhancement factor of semiconductor lasers by modified direct frequency modulation method,” Electron. Lett., vol.24, no.13, pp.821-822, 1988
- T. Okoshi, O. Ishida, and K. Kikuchi, “Simple formula for bit-error rate in optical heterodyne DPSK systems employing polarization diversity,” Electron. Lett., vol.24, no.2, pp.120-122, 1988
- K. Kikuchi, “Precise estimation of linewidth reduction in wavelength-detuned DFB semiconductor lasers,” Electron. Lett., vol.24, no.2, pp.80-81, 1988
- K. Kikuchi and T. P. Lee, “Design theory of electrically frequency-controlled narrow-linewidth semiconductor lasers for coherent optical communication systems,” J. Lightwave Technol., vol.5, no.9, pp.1273-1276, 1987
- K. Kikuchi and T. P. Lee, “Spectral stability analysis of weakly coupled external cavity semiconductor laser,” J. Lightwave Technol., vol.5, no.9, pp.1269-1272, 1987
- K. Kikuchi, “Impact of 1/f-type FM noise on coherent optical communications,” Electron. Lett., vol.23, no.17, pp.885-887, 1987
- K. Kikuchi, C. E. Zah, and T. P. Lee, “Spectral, phase noise, and phase modulation characteristics of AM sideband injection-locked semiconductor lasers,”Electron. Lett., vol.23, no.9, pp.437-439, 1987
- K. Kikuchi, T. Okoshi, and A. Hirose, “Achievement of shot-noise-limited sensitivity and 50-dB dynamic range by photon-counting receiver using Si avalanche photodiode,” J. Lightwave Technol., vol.4, no.7, pp.828-832, 1986
- K. Kikuchi, T. Fukushima, and T. Okoshi, “Frequency-modulation characteristics of semiconductor lasers: Deviation from theoretical prediction by rate equation analysis,” Electron. Lett., vol.22, no.14, pp.741-743, 1986
- K. Kikuchi and T. Okoshi, “Measurement of FM noise, AM noise, and field spectra of 1.3µm InGaAsP DFB lasers and determination of the linewidth enhancement factor,” IEEE J. Quantum Electron., vol.21, no.11, pp.1814-1818, 1985
- K. Kikuchi and T. Okoshi, “Estimation of linewidth enhancement factor of AlGaAs lasers by correlation measurement between FM and AM noises,” IEEE J. Quantum Electron., vol.21, no.6, pp.669-673, 1985
- K. Kikuchi, T. Fukushima, and T. Okoshi, “Stripe-structure dependence of frequency modulation characteristics of AlGaAs lasers,” Electron. Lett., vol.21, no.23, pp.1088-1090, 1985
- K. Kikuchi and T. Okoshi, “Dependence of semiconductor laser linewidth on measurement time: Evidence of predominance of 1/f noise,” Electron. Lett., vol.21, no.20, pp.1011-1012 1985
- T. Okoshi, N. Fukaya, and K. Kikuchi, “New polarization-state control device: Rotatable fiber crank,” Electron. Lett., vol.21, no.20, pp.895-896, 1985
- K. Kikuchi, T. Okoshi, and A. Hirose, “Achievement of shot-noise-limited sensitivity and 50 dB dynamic range by photon-counting receiver using Si avalanche photodiode,” Electron. Lett., vol.21, no.18, pp.801-802, 1985
- T. Okoshi, Y. H. Cheng, and K. Kikuchi, “New polarization-control scheme for optical heterodyne receiver using two Faraday rotators,” Electron. Lett., vol.21, no.18, pp.787-788, 1985
- K. Kikuchi, “Calculated field spectra of semiconductor lasers near threshold,” Electron. Lett., vol.21, no.16, pp.705-706, 1985
- K. Kikuchi and T. Okoshi, “Measurement of field spectra of 1.3µm InGaAsP DFB lasers,” Electron. Lett., vol.21, no.6, pp.217-218, 1985
- K. Kikuchi, T. Okoshi, M.Nagamatsu, and N. Henmi, “Degradation of bit-error rate in coherent optical communications due to spectral spread of the transmitter and the local oscillator,” J. Lightwave Technol., vol.2, no.6, pp.1024-1033, 1984
- K. Kikuchi and T. Okoshi, “FM- and AM-noise spectra of 1.3µm InGaAsP DFB lasers in 0-3GHz range and determination of their linewidth enhancement factor α,” Electron. Lett., vol.20, no.25/26, pp.1044-1045, 1984
- K. Kikuchi, T. Okoshi, and T. Kawai, “Estimation of linewidth enhancement factor α of CSP-type AlGaAs lasers from measured correlation between AM and FM noises,” Electron. Lett., vol.20, no.11, pp.450-451, 1984
- K. Kikuchi, T. Okoshi, and R. Arata, “Measurement of linewidth and FM-noise spectrum of 1.52µm InGaAsP lasers,” Electron. Lett., vol.20, no.13, pp.535-536, 1984
- K. Kikuchi, T. Okoshi, and S. Tanikoshi, “Amplitude modulation of an injection-locked semiconductor laser for heterodyne-type optical communications,” Opt. Lett., vol.9, no.3, pp.99-101, 1984
- T. Okoshi, T. Aihara, and K. Kikuchi, “Prediction of the ultimate performance of side-tunnel single-polarization fiber,” Electron. Lett., vol.19, no.25, pp.1080-1082, 1983
- K. Kikuchi and T. Okoshi, “Measurement of spectra of and correlation between FM and AM noises in GaAlAs lasers,” Electron. Lett., vol.19, no.20, pp.812-813, 1983
- K. Kikuchi, T. Okoshi, M.Nagamatsu, and N. Henmi, “Bit-error rate of PSK heterodyne optical communication system and its degradation due to spectral spread of transmitter and local oscillator,” Electron. Lett., vol.19, no.11, pp.417-418, 1983
- K. Kikuchi and T. Okoshi, “Wavelength-sweeping technique for measuring the beat length of linearly birefringent optical fibers,” Opt. Lett., vol.8, no.2, pp.122-123, 1983
- K. Kikuchi and T. Okoshi, “Simple formula giving spectrum-narrowing ratio of semiconductor-laser output obtained by optical feedback,” Electron. Lett., vol.18, no.1, pp.10-12, 1982
- K. Kikuchi, T. Okoshi, and J. Kitano, “Measurement of bit-error rate of heterodyne-type optical communication system—A simulation experiment,” IEEE J. Quantum Electron., vol.17, no.12, pp.2266-2267, 1981
- K. Kikuchi, T. Okoshi, and S. Kawanishi, “Achievement of 1 MHz frequency stability of semi- conductor lasers by double-loop AFC,” Electron. Lett., vol.17, no.15, pp.515-516, 1981
- T. Okoshi, K. Emura, K. Kikuchi, and R. Th. Kersten, “Computation of bit-error rate of various heterodyne and coherent-type optical communication schemes,” J. Opt. Commun., vol.2, no.3, pp.89-96, 1980
- T. Okoshi, K. Kikuchi, and A. Nakayama, “Novel method for high resolution measurement of laser output spectrum,” Electron. Lett., vol.16, no.16, pp.630-631, 1980
- T. Okoshi and K. Kikuchi, “Frequency stabilization of semiconductor lasers for heterodyne-type optical communication systems,” Electron. Lett., vol.16, no.5, pp.179-181, 1980
- K. Kikuchi and K. Tada, “Theory of electric ﬁeld-induced optical second harmonic generation in semiconductors,” Opt. and Quantum Electron., vol.12, pp.199-205, 1980
- K. Kikuchi, K. Tada, and M. Aoki, “Theory of resonant forbidden Raman scattering in semiconductors,” J. Phys. Chem. Solids, vol.41, pp.1361-1366, 1980
- K. Tada and K. Kikuchi, “Elastooptic effect in BaTiO3 ,” Jap. J. Appl. Phys., vol.19, no.7, pp.1311-1315, 1980
- K. Kikuchi and K. Tada, “Dispersion of the linear electrooptic coeffcient and its relation to resonant Raman scattering in ZnSe,” Jap. J. Appl. Phys., vol.17, no.5, pp.825-829, 1978
- K. Tada, K. Kikuchi, and K. Sato, “Dispersion of photoelastic coeffcients in ZnSe,” Jap. J.Appl. Phys., vol.16, no.5, pp.757-760, 1977

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