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[2] Nakazawa M, Yoshida E, Tamura K. Ideal phase-locked-loop (PLL) operation of a 10 GHz erbium-doped fibre laser using regenerative modelocking as an optical voltage controlled oscillator. Electronics Letters, 1997, 33(15): 1318–1320
[3] Nakazawa M, Suzuki K. Cesium optical atomic clock: an optical pulse that tells the time. Optics Letters, 2001, 26(9): 635–637
[4] Hirayama T, Yoshida M, Nakazawa M, Hagimoto K, Ikegami T. Mode-locked laser-type optical atomic clock with an optically pumped Cs gas cell. Optics Letters, 2007, 32(10): 1241–1243
[5] Hirooka T, Okazaki M, Guan P, Nakazawa M. 320-Gb/s singlepolarization DPSK transmission over 525 km using time-domain optical Fourier transformation. IEEE Photonics Technology Letters, 2008, 20(22): 1872–1874
[6] Tajima K. All-optical switch with switch-off time unrestricted by carrier lifetime. Japanese Journal of Applied Physics, 1993, 32(12A): L1746–L1749
[7] Nakazawa M, Hirooka T, Futami F, Watanabe S. Ideal distortionfree transmission using optical Fourier transformation and Fourier transform-limited optical pulses. IEEE Photonics Technology Letters, 2004, 16(4): 1059–1061
[8] Chen Y C, Raravikar N R, Schadler L S, Ajayan P M, Zhao Y P, Lu T M, Wang G C, Zhang X C. Ultrafast optical switching properties of single-wall carbon nanotube polymer composites at 1.55 μm. Applied Physics Letters, 2002, 81(6): 975–977
[9] Nakazawa M, Nakahara S, Hirooka T, Yoshida M, Kaino T, Komatsu K. Polymer saturable absorber materials in the 1.5 μm band using poly-methyl-methacrylate and polystyrene with singlewall carbon nanotubes and their application to a femtosecond laser. Optics Letters, 2006, 31(7): 915–917
[10] Goto H, Kasai K, Yoshida M, Nakazawa M. Polarizationmultiplexed 1 Gsymbol/s, 128 QAM (14 Gbit/s) coherent optical transmission over 160 km using a 1.4 GHz Nyquist filter. In: Proceedings of OFC2008. 2008, JThA45
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[12] Nakazawa M, Kasai K, Yoshida M. C2H2 absolutely optical frequency-stabilized and 40 GHz repetition-rate-stabilized, regeneratively mode-locked picosecond erbium fiber laser at 1.53 μm. Optics Letters, 2008, 33(22): 2641–2643
