Noise evolution with the phase-sensitive gain in a hybrid fiber phase-sensitive amplifier

被引：1

作者：

Liu, Zhanchang ^{[1
]}

Chen, Zhirong ^{[2
,3
]}

Guo, Xiaojie ^{[1
]}

Du, Jiangbing ^{[4
]}

Li, Zhaohui ^{[2
,3
,5
]}

机构：

[1] Jinan Univ, Inst Photon Technol, Guangdong Prov Key Lab Opt Fiber Sensing & Commun, Guangzhou 510632, Peoples R China

[2] Sun Yat Sen Univ, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Peoples R China

[3] Sun Yat Sen Univ, Sch Elect & Informat Technol, Guangzhou 510275, Peoples R China

[4] Shanghai Jiao Tong Univ, State Key Lab Adv Opt Commun Syst & Networks, Shanghai 200240, Peoples R China

[5] Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai 519000, Peoples R China

来源：

OPTICS LETTERS | 2020年 / 45卷 / 11期

基金：

中国国家自然科学基金;

关键词：

FIGURE; SIGNAL; AMPLIFICATION;

D O I：

10.1364/OL.391944

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We investigate the noise evolution of a hybrid fiber phase-sensitive amplifier (PSA) with an erbium-doped fiber amplifier (EDFA) as a function of the phase-sensitive gain. The noise performance of the hybrid amplifier with a large overall gain of 45.6 dB is experimentally evaluated in optical and electrical domains. The experimental results are in good. agreement with theory, showing that significant improvement of the overall noise figure (NF) of the hybrid amplifier occurs in a low PSA gain region. A combined NF below 3 dB has been obtained in the hybrid amplifier with a PSA gain of 9 dB, which is 1.1 dB better than a conventional EDFA with an equivalent overall gain. (C) 2020 Optical Society of America

引用

页码：3075 / 3078

页数：4

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