Experimental investigation of noise in double-pass erbium-doped fiber amplifiers

被引：23

作者：

Naji, A. W.

Abidin, M. S. Z.

Al-Mansoori, M. H.

Faidz, A. R.

Mahdi, M. A. ^{[1
]}

机构：

[1] Univ Putra Malaysia, Photon & Fiber Opt Syst Lab, Dept Comp & Commun Syst Engn, Fac Engn, Serdang 43400, Malaysia

[2] Multimedia Univ, Ctr Photon Res Innovat & Applicat, Fac Engn, Cyberjaya Selangor 63100, Malaysia

来源：

LASER PHYSICS LETTERS | 2007年 / 4卷 / 02期

关键词：

erbium; optical amplifier; noise; double-pass;

D O I：

10.1002/lapl.200610075

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper, noise figure characteristics of double-pass amplifiers are investigated. Experimental analysis between single-pass and double-pass amplifications is discussed with 1480 nm pumping scheme. The noise figure penalty of the double-pass amplifier compared to single-pass amplifier is contributed by the generation of amplified spontaneous emission in backward direction with respect to the initial signal direction. Thus, the optical signal-to-noise ratio of the signal is degraded with the same amount of the noise figure penalty.

引用

页码：145 / 148

页数：4

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