Presentation 2017-10-27
Coded Optical Nyquist Pulse Generation Using Modulated Semiconductor Lasers
Nobuhide Yokota, Kazuya Komukai, Hiroshi Yasaka,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Coded optical Nyquist pulse generation using modulated semiconductor lasers and dual-electrode Mach-Zehnder modulator (MZM) is numerically investigated for application to a cost-effective optical time division multiplexing laser source. Quadrature phase shift keying (QPSK) signals are generated by using two injection-locked semiconductor lasers under current modulation with 10 Gb/s NRZ signals. The modulated optical signals are synchronously modulated by the dual-electrode MZM with a sinusoidal RF signal and its second harmonic component for transforming to the optical Nyquist pulses. The QPSK-coded optical Nyquist pulse generation with a repetition rate of 10 GHz, pulse duration of 12 ps, and roll-off factor of ~0.64 are confirmed.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Semiconductor Laser / Optical Nyquist Pulse / Injection Locking / Optical Time Division Multiplexing
Paper # OCS2017-54,OPE2017-86,LQE2017-59
Date of Issue 2017-10-19 (OCS, OPE, LQE)

Conference Information
Committee OCS / OPE / LQE
Conference Date 2017/10/26(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Josaien, Sakuranobaba
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Itsuro Morita(KDDI Research) / Kazutoshi Kato(Kyushu Univ.) / Tsuyoshi Yamamoto(Fujitsu Labs.)
Vice Chair / Kouki Sato(Furukawa Electric Industries) / Kiichi Hamamoto(Kyusyu Univ.)
Secretary (Sumitomo Electric Industries) / Kouki Sato(NTT) / Kiichi Hamamoto(NTT)
Assistant / Takuo Tanemura(Univ. of Tokyo) / Naokatsu Yamamoto(NICT) / Yasumasa Kawakita(Furukawa Electric Industries) / Naoki Fujiwara(NTT)

Paper Information
Registration To Technical Committee on Optical Communication Systems / Technical Committee on OptoElectronics / Technical Committee on Lasers and Quantum Electronics
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Coded Optical Nyquist Pulse Generation Using Modulated Semiconductor Lasers
Sub Title (in English)
Keyword(1) Semiconductor Laser
Keyword(2) Optical Nyquist Pulse
Keyword(3) Injection Locking
Keyword(4) Optical Time Division Multiplexing
1st Author's Name Nobuhide Yokota
1st Author's Affiliation Tohoku University(Tohoku Univ.)
2nd Author's Name Kazuya Komukai
2nd Author's Affiliation Tohoku University(Tohoku Univ.)
3rd Author's Name Hiroshi Yasaka
3rd Author's Affiliation Tohoku University(Tohoku Univ.)
Date 2017-10-27
Paper # OCS2017-54,OPE2017-86,LQE2017-59
Volume (vol) vol.117
Number (no) OCS-263,OPE-264,LQE-265
Page pp.pp.93-96(OCS), pp.93-96(OPE), pp.93-96(LQE),
#Pages 4
Date of Issue 2017-10-19 (OCS, OPE, LQE)