A dual pumped double-pass L-band EDFA with high gain and low noise

被引：33

作者：

Chang, C. L.

Wang, Likarn ^{[1
]}

Chiang, Y. J.

机构：

[1] Natl Tsing Hua Univ, Inst Photon, Hsinchu 300, Taiwan

[2] Accton Technol Corp, Hsinchu 300, Taiwan

来源：

OPTICS COMMUNICATIONS | 2006年 / 267卷 / 01期

关键词：

L-band erbium-doped fiber amplifier; gain; noise figure; double-pass configuration; pump conversion efficiency; fiber Bragg grating;

D O I：

10.1016/j.optcom.2006.06.025

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This paper presents an efficient pumping scheme for L-band erbium-doped fiber (EDFA) amplifier to reach high gain and low noise performance in a double-pass configuration. The main L-band amplifier is composed of two sections of EDFs. A 980 nm and a 1480 nm pump lasers are used to pump the first section of EDF bi-directionally. The generated backward C-band amplified spontaneous emission noise from this EDF is used to pump a subsequent un-pumped section of EDF. In the double-pass scheme, a narrow-band fiber Bragg grating at each channel wavelength is used to back-reflect the L-band signal to make it amplified twice by the pair of EDFs. Compared with its conventional counterpart, this new double-pass configuration provides a lower noise figure and a higher gain. The pump conversion efficiency can be improved by more than 50% in a 3-channel demonstration by using the proposed configuration. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：108 / 112

页数：5

共 8 条

[1] Low noise, high efficiency L-band EDFA with 980nm pumping [J].