Optimization and fabrication of stitched long-period gratings for gain flattening of ultrawide-band EDFAs

被引：10
作者：
Zhang, AP [1 ]
Chen, XW
Yan, JH
Guan, ZG
He, SL
Tam, HY
机构：
[1] Zhejiang Univ, Dept Opt Engn, Ctr Opt & Electromagnet Res, Hangzhou 310027, Zhejiang, Peoples R China
[2] Hong Kong Polytech Univ, Dept Elect Engn, Photon Res Ctr, Kowloon, Hong Kong, Peoples R China
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2005年 / 17卷 / 12期
基金：
中国国家自然科学基金;
关键词：
erbium-dopcd fiber amplifier (EDFA); gain flattening; genetic algorithm (GA); long-period fiber gratings (LPGs);
D O I：
10.1109/LPT.2005.859148
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 present the optimization and fabrication of the stitched long-period fiber gratings (SLPGs) for gain flattening of an ultrawide-band erbium-doped fiber amplifier (EDFA). With an improved genetic algorithm, the gain spectrum of a practical EDFA with bandwidth of 80 nm is fattened within +/- 0.69 dB by an optimized SLPG. Furthermore, the SLPG is designed specially for a point-by-point grating writing technique. A superior control of the fabrication procedure of the designed SLPG has been demonstrated in the experiment.
引用
收藏
页码：2559 / 2561
页数：3
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