Multicarrier Light Source With Flattened Spectrum Using Phase Modulators and Dispersion Medium

被引：66

作者：

Yamamoto, Takashi ^{[1
]}

Komukai, Tetsuro ^{[2
]}

Suzuki, Kazunori ^{[3
]}

Takada, Atsushi ^{[4
]}

机构：

[1] NTT Corp, NTT Access Network Serv Syst Labs, Tsukuba, Ibaraki 3050805, Japan

[2] NTT Corp, NTT Network Innovat Labs, Kanagawa 2390847, Japan

[3] NTT Elect Corp, Tokyo 1940004, Japan

[4] Univ Tokushima, Inst Sci & Technol, Tokushima 7708506, Japan

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2009年 / 27卷 / 19期

关键词：

Bessel functions; gratings; light sources; optical fiber dispersion; phase modulation; FIBER BRAGG GRATINGS; DELAY RIPPLE REDUCTION; PULSE GENERATION; LASER; SUPERCONTINUUM; COMPENSATION; TRANSMISSION; BEAM;

D O I：

10.1109/JLT.2009.2023368

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper describes a phase-locked multicarrier light source that employs a continuous wave (CW) light source, two phase modulators, and a dispersion medium. A sinusoidal phase modulation (PM) with a modulation index of pi/4 and a group velocity dispersion of +/- 1/(4 pi f(m)(2)), where f(m) is the modulation frequency, are applied to a CW light followed by a large sinusoidal PM. This configuration provides a multicarrier light with a flattened optical power spectrum for any modulation index of the second PM. By adopting a chirped fiber Bragg grating (FBG) as a dispersion medium instead of a long normal dispersion fiber, we can increase the stability of the optical output spectrum and reduce the size of the multicarrier light generator. We have built a prototype with this configuration that generates a 61-carrier light with a 25 GHz interval and a power deviation of less than 8 dB.

引用

页码：4297 / 4305

页数：9

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