Dispersion-compensating Raman/EDPA hybrid amplifier recycling residual Raman pump for efficiency enhancement

被引：41

作者：

Lee, JH ^{[1
]}

Chang, YM

Han, YG

Kim, SH

Chung, HY

Lee, SB

机构：

[1] Korea Inst Sci & Technol, Photon Res Ctr, KIST, Seoul 136791, South Korea

[2] Kyung Hee Univ, Coll Elect & Informat, Gyeonngi Do 449701, South Korea

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2005年 / 17卷 / 01期

关键词：

erbium-doped fiber (EDF); optical fiber amplifiers; optical fiber communication; optical pumping; Raman scattering;

D O I：

10.1109/LPT.2004.837264

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 experimentally demonstrate a novel concept of the dispersion-compensating Raman/erbium-doped fiber amplifier hybrid amplifier recycling residual Raman pump for increase of overall power conversion efficiency. The proposed dispersion-compensating hybrid amplifier system has only one pump source for Raman amplification in the dispersion-compensating fiber (DCF) and the residual pump power after the DCF is recycled for secondary signal amplification in an erbium-doped fiber cascaded to the DCF. Using the proposed scheme, we achieve the significant enhancement of both signal gain and effective gain-bandwidth by 15 dB (small signal gain) and 20 nm, respectively, compared to the performance of the Raman-only amplifier.

引用

页码：43 / 45

页数：3

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