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[1] Koichiro Nakamura, Toshiharu Miyahara, Masato Yoshida, Takefumi Hara, and Hiromasa Ito, "A new technique of optical ranging by a frequency-shifted feedback laser," IEEE Photon Technol. Lett., vol. 10, no. 12, pp. 1772-1774 (1998).

[2] 吉田真人, 中村孝一郎, 伊藤弘昌, "周波数シフト帰還型ファイバレーザー," レーザー研究, vol. 27, no. 7, pp. 490-494 (1999).

[3] 吉田真人, 中村孝一郎, 伊藤弘昌, "周波数シフト帰還型ファイバレーザを用いた光ファイバの分散測定：群速度分散測定," 電子情報通信学会論文誌B, vol. J83-B, no. 11, pp. 1608-1613 (2000).

[4] Koichiro Nakamura, Takefumi Hara, Masato Yoshida, Toshiharu Miyahara, and Hiromasa Ito, "Optical frequency domain ranging by a frequency-shifted feedback laser, " IEEE J. Quantum Electron., vol. 36, no. 3, pp. 305-316 (2000).

[5] Masato Yoshida, Koichiro Nakamura and Hiromasa Ito, "A new method for measurement of group velocity dispersion of optical fibers by using a frequency-shifted feedback fiber laser," IEEE Photon Technol. Lett., vol. 13, no. 3, pp. 227-229 (2001).

[6] Masato Yoshida, T. Miyamoto, Nianyu Zou, K. Nakamura and Hiromasa Ito, "Novel PMD measurement method based on OFDR using a frequency-shifted feedback fiber laser," Optics Express, vol. 9, no. 4, pp. 207-211 (2001).

[7] Masato Yoshida, Toshiyuki Miyamoto, Koichiro Nakamura, and Hiromasa Ito, "A new technique for measuring dispersion of optical fibers using a frequency-shifted feedback fiber laser. Part I: Measurement of group velocity dispersion," Electronics and Communications in Japan, Part 1, vol. 85, no. 2, pp. 1-7 (2002)

[8] N. Zou, M. Yoshida, Y. Namihira, H. Ito, "PMD measurement based on delayed self-heterodyne OFDR and experimental comparison with ITU-T round robin measurements," Electron. Lett., vol. 38 no. 3, pp. 115-116 (2002).

[9] M. Yoshida, M. Kikegawa, N. Nishimura, and M. Nakazawa, "Observation of huge Fresnel reflection at a splicing point between a photonic crystal fiber and a conventional fiber and its suppression," IEICE Trans. Electron. (in Japanese), vol. J86-C, no. 9, pp. 1007-1016 (2003).

[10] S. Choi, M. Yoshida, and M. Nakazawa, "Measurements of longitudinal linewidths of 10 GHz, picosecond mode-locked erbium-doped fiber lasers using heterodyne detection method," IEICE Trans. Electron. (in Japanese), vol. J86-C, no. 10, pp. 1054-1062, October 2003.

[11] M. Yoshida, T. Yaguchi, S. Harada, and M. Nakazawa, "A 40 GHz regeneratively and harmonically mode-locked erbium-doped fiber laser and its longitudinal-mode characteristics," IEICE Trans. Electron., vol. E87-C, No. 7, pp. 1166-1172 (2004).

[12] K. Haneda, M. Yoshida, H. Yokoyama, Y. Ogawa, and M. Nakazawa, "Measurements of longitudinal linewidth and relative intensity noise in ultrahigh-speed mode-locked semiconductor lasers," IEICE Trans. Electron. (in Japanese), vol. J88-C, no. 3, pp. 161-168, March 2005.

[13] H. Hasegawa, M.Kikegawa, M. Yoshida, T. Hirooka, and M. Nakazawa, "Observation of optimum air-hole tapering of splicing between a conventional fiber and a photonic crystal fiber and analysis of reduction of Fresnel reflection," IEICE Trans. Electron. (in Japanese), vol. J88-C, no. 10, pp. 779-787 (2005).

[14] M. Yakabe, K. Nito, M. Yoshida, and M. Nakazawa, "Microwave frequency tuning characteristics of an opto-microwave oscillator made of fiber laser and its application to Ramsey fringe observation," IEICE Trans. Comm. (in Japanese), vol. J88-B, no. 9, pp. 1829-1836 (2005).

[15] K. Kasai, M. Yoshida, M. Nakazawa, "Acetylene (¹³C₂H₂) stabilized single-polarization fiber laser," IEICE Trans. Electron. (in Japanese), vol. J88-C, no. 9, pp. 708-715 (2005).

[16] K. Haneda, M. Yoshida, M. Nakazawa, H. Yokoyama, and Y. Ogawa, "Linewidth and relative intensity noise measurements of longitudinal modes in ultrahigh-speed mode-locked laser diodes," Optics Letters, vol. 30, no. 9, pp. 1000-1002 (2005).

[17] M. Yakabe, K. Nito, M. Yoshida, M. Nakazawa, Y. Koga, K. Hagimoto, and T. Ikegami, "Ultrastable cesium atomic clock with a 9.1926-GHz regeneratively mode-locked fiber laser," Optics Letters, vol. 30, no. 12, pp. 1512-1514 (2005).

[18] M. Nakazawa, M. Yoshida, K. Kasai, and J. Hongou, "20 Msymbol/s, 64 and 128 QAM coherent optical transmission over 525 km using heterodyne detection with frequency-stabilized laser," Electronics Letters, vol. 43, no. 12, pp. 710-712 (2006).

[19] M. Nakazawa, S. Nakahara, T. Hirooka, M. Yoshida, T. Kaino, and K. Komatsu, "Polymer saturable absorber materials in the 1.5 μm band using poly-methyl-methacrylate and polystyrene with single-wall carbon nanotubes and their application to a femtosecond laser," Optics Letters, vol. 31, no. 7, pp. 915-917 (2006).

[20] H. Hasegawa, Y. Oikawa, M. Yoshida, T. Hirooka, and M. Nakazawa, "10 Gb/s transmission over 5 km at 850 nm using single-mode photonic crystal fiber, single-mode VCSEL, and Si-APD," IEICE Electronics Express, vol. 3, no. 6, pp. 109-114 (2006).

[21] K. Kasai, A. Suzuki, M. Yoshida, and M. Nakazawa, "Performance improvement of an acetylene (C₂H₂) frequency-stabilized fiber laser," IEICE Electronics Express, vol. 3, no. 22, pp. 487-492 (2006).

[22] Y. Oikawa, H. Hasegawa, T. Hirooka, M. Yoshida, and M. Nakazawa, "Ultra-broadband dispersion measurement of photonic crystal fiber with pico-second streak camera and group-delay-free supercontinuum," IEICE Transactions on Electronics (in Japanese), vol. J89-C, no. 7, pp. 450-457 (2006).

[23] M. Nakazawa, M. Yoshida, and T. Hirooka, "Ultra-stable regeneratively mode-locked laser as an opto-electronic microwave oscillator and its application to optical metrology," IEICE Transactions on Electronics (Invited Paper), vol. E90-C, no. 2, pp. 443-449 (2007).

[24] K. Kasai, J. Hongo, M. Yoshida, and M. Nakazawa, "Optical phase-locked loop for coherent transmission over 500km using heterodyne detection with fiber lasers," IEICE Electronics Express, vol. 4, no. 3, pp. 77-81 (2007).

[25] A. Suzuki, Y. Takahashi, M.Yoshida, and M. Nakazawa, "A CW polarization-maintaining λ/4 shifted DFB Er-doped fiber laser at 1.54 μm," IEICE Electronics Express, vol. 4, no. 8, pp. 251-257 (2007).

[26] T. Hirayama, M. Yoshida, M. Nakazawa, K. Hagimoto, and T. Ikegami, "Mode-locked laser-type optical atomic clock with an optically pumped Cs gas cell," Opt. Lett., vol. 32, no. 10, pp. 1241-1243, May (2007).

[27] J. Hongou, K. Kasai, M. Yoshida, and M. Nakazawa, "1 Gsymbol/s, 64 QAM Coherent optical transmission over 150 km with a spectral efficiency of 3 bit/s/Hz," IEEE Photon. Technol. Lett., vol. 19, no. 9-12, pp. 638-640 (2007).

[28] M. Yoshida, T. Hirayama, M. Nakazawa, K. Hagimoto, and T. Ikegami, "Regeneratively mode-locked fiber laser with a repetition rate stability of 4.9 x 10^-15 using a hydrogen maser phase-locked loop," Opt. Lett., vol. 32, no. 13, pp. 1827-1829 (2007).

[29] M. Yoshida, K. Kasai, and M. Nakazawa, "Mode-hop-free, optical frequency tunable 40-GHz mode-locked fiber laser," IEEE J. Quantum Electron., vol. 43, no. 8, pp. 704-708 (2007).

[30] A. Suzuki, Y. Takahashi, M. Yoshida, and M. Nakazawa, "An ultralow noise and narrow linewidth λ/4-shifted DFB Er-doped fiber laser with a ring cavity configuration," IEEE Photon. Technol. Lett., vol. 19, no. 19, pp. 1463-1465, October (2007).

[31] M. Nakazawa, T. Hirooka, and M. Yoshida, "Optical fiber transmission of standard signals using optical combs," The Review of Laser Engineering (in Japanese), vol. 35, no. 10, pp. 649-653 (2007).

[32] T. Hirayama, M. Yakabe, M. Yoshida, M. Nakazawa, Y. Koga, and K. Hagimoto, "An ultrastable Cs optical atomic clock with a 9.1926-GHz regeneratively mode-locked fiber laser," IEICE Trans. Electron. (in Japanese), vol. J90-C, no. 12, pp. 1-11 (2007).

[33] M. Yoshida, A. Ono, and M. Nakazawa, "A 10 GHz regeneratively mode-locked SOA fiber ring laser and its linewidth characteristics," Opt. Lett, Vol. 32, No. 24, pp. 3513-3515 (2007).

[34] K. Kasai, J. Hongo, H. Goto, M. Yoshida, and M. Nakazawa, "The use of a Nyquist filter for reducing an optical signal bandwidth in a coherent QAM optical transmission," IEICE Electronics Express, vol. 5, no. 1, pp. 6-10 (2008).

[35] M. Yoshida, H. Goto, K. Kasai, and M. Nakazawa, "64 and 128 coherent QAM optical transmission over 150 km using frequency-stabilized laser and heterodyne PLL detection," Opt. Express, vol. 16, no. 2, pp. 829-840, January (2008).

[36] M. Nakazawa and M. Yoshida, "New scheme for independently stabilizing the repetition rate and optical frequency of a laser using a regenerative mode-locking technique," Opt. Lett., vol. 33, no. 10, pp. 1059-1061 (May 15, 2008).

[37] M. Nakazawa, K. Kasai, and M. Yoshida, "A C₂H₂ absolutely optical frequency-stabilized and 40 GHz repetition-rate stabilized, regeneratively mode-locked picosecond erbium fiber laser at 1.53 μm," Opt. Lett., vol. 33, no. 22, pp. 2641-2643 (2008).

[38] H. Goto, M. Yoshida, T. Omiya, K. Kasai and M. Nakazawa, "Polarization and frequency division multiplexed 1Gsymbol/s, 64 QAM coherent optical transmission with 8.6bit/s/Hz spectral efficiency over 160km," IEICE Electronics Express, vol. 5, no. 18, pp. 776-781 (2008).

[39] H. T. Quynhanh, A. Suzuki, M. Yoshida, T. Hirooka, and M. Nakazawa, "A λ/4-shifted distributed-feedback laser diode with a fiber ring cavity configuration having an OSNR of 85 dB and a linewidth of 7 kHz," IEEE Photon. Technol. Lett., vol. 20, no. 18, pp. 1578-1580, September (2008).

[40] K. Koizumi, M. Yoshida, M, M. Nakazawa, "10-GHz 11.5-ps Pulse Generation From a Single-Mode Gain-Switched InGaAs VCSEL at 1.1 μm," IEEE Photon. Technol. Lett., vol. 21, no. 22, pp. 1704-1706 (2009).

[41] K. Koizumi, M. Yoshida, T. Hirooka, M. Nakazawa, "10Gbit/s photonic crystal fiber transmissions with 1.1 μm directly-modulated single-mode VCSEL," IEICE Electronics Express, vol. 6, no. 22, pp. 1615-1620 (2009).

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