A standard fiber-based loop mirror as a gain-flattening filter for erbium-doped fiber amplifiers

被引：20

作者：

Kumar, N ^{[1
]}

Shenoy, MR ^{[1
]}

Pal, BP ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Phys, New Delhi 110016, India

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2005年 / 17卷 / 10期

关键词：

amplified spontaneous emission (ASE) spectrum; erbium-doped fiber amplifier (EDFA); fiber loop mirror (FLM); gain flattening filter;

D O I：

10.1109/LPT.2005.856323

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 report flattening of the amplified spontaneous emission (ASE) spectrum from an erbium-doped fiber (EDF) using a standard fiber-based loop mirror (FLM), realized with an "over-coupled" fiber coupler. Through simulation, a bend-induced birefringent FLM as a gain-flattening filter is designed. Subsequently, an over-coupled coupler with a free spectral range of 140 nm is fabricated to realize the FLM, which is integrated to an EDF that is pumped by a 980-nm laser diode. By introducing an appropriate amount of bend-induced birefringence in the loop, the ASE spectrum of the EDF could be flattened within +/- 0.5 dB over a wavelength range of 32 nm in the C-band.

引用

页码：2056 / 2058

页数：3