Inherently gain flattened S-band erbium doped fiber amplifier based on dual core resonant leaky fiber
- 作者：Koppole Kamakshi ; kamakshikoppole@gmail.com ; Vipul Rastogi
- 关键词：Leakage loss ; Amplified spontaneous emission ; Dual core fiber ; Leaky fiber ; Erbium doped fiber amplifier ; S-band
- 刊名：Optics Communications
- 出版年：2012
- 期刊代码：50_00304018
- 类别：ph
- 出版时间：1 June, 2012
- 卷：285
- 期：12
- 页码：2821-2825
- 文件大小：991 K
摘要
A co-axial dual core resonant leaky optical fiber (DCRLF) is designed for inherent gain equalization of S-band erbium doped fiber amplifier (EDFA). Resonance tail of leakage loss of the fiber into the S-band region is utilized to flatten the gain. We have numerically studied the effect of various design parameters and their fabrication tolerances on gain flattening. We show 23.5 dB flat gain with 卤 0.9 dB ripple over 30 nm bandwidth (1490-1520 nm) using 120 mW pump. The study should be useful in designing optical fiber amplifiers for optical communication system employing wavelength division multiplexing.