Adaptive dispersion slope equalizer using a nonlinearly chirped fiber Bragg grating pair with a novel dispersion detection technique

被引：20

作者：

Inui, T ^{[1
]}

Komukai, T ^{[1
]}

Nakazawa, M ^{[1
]}

Suzuki, K ^{[1
]}

Tamura, KR ^{[1
]}

Uchiyama, K ^{[1
]}

Morioka, T ^{[1
]}

机构：

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

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2002年 / 14卷 / 04期

关键词：

adaptive systems; compensation; gratings; optical fiber communication; optical fiber dispersion;

D O I：

10.1109/68.992607

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：

We realized the first adaptive-dispersion equalizer that equalizes dispersion over a wide wavelength range (6 nm) in the zero-dispersion wavelength region of a dispersion-shifted fiber (DSF). The equalizer is based on a pair of nonlinearly chirped fiber Bragg gratings, which are designed to equalize exactly the dispersion profile of a DSF. The dispersion changes were tracked using a technique that employs opposite dispersion fibers to identify the sign of the dispersion change. Unlike previous approaches, no additional sources or changes in the source wavelength are required. We demonstrate the adaptive equalization of the dispersion changes in an 83-km DSF, induced by temperature changes between -10 degreesC and 60 degreesC.

引用

页码：549 / 551

页数：3

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