NANOSECOND ALL-OPTICAL GAIN SWITCHING OF AN ERBIUM-DOPED FIBER AMPLIFIER

被引：6
|
作者：
MYSLINSKI, P
BARNARD, C
CHENEY, G
CHROSTOWSKI, J
SYRETT, B
GLINSKI, J
机构：
[1] National Research Council, Institute for Information Technology, Ottawa
来源：
OPTICS COMMUNICATIONS | 1993年 / 97卷 / 5-6期
关键词：
D O I：
10.1016/0030-4018(93)90500-5
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Optical pin switching of an erbium-doped fibre amplifier (EDFA) with short pulses at wavelengths within the amplifier bandwidth is demonstrated. Gain compression of 20 dB in 40 ns was experimentally obtained. Theoretical modelling agrees well with experimental results and concludes that gain compression is determined by pulse energy. Optimization of fibre length as well as signal and switching wavelengths predicts that 10 dB nanosecond switching can be obtained with sub-picojoule switching pulse energy. Theory also shows that a pump pulse can accelerate recovery to microseconds. The proposed switching scheme offers optical gain control many orders of magnitude faster than the fluorescence lifetime of erbium ions in a glass host, which limits the switching speed of an EDFA controlled by pump power modulation alone.
引用
收藏
页码：340 / 346
页数：7
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