Apodized long-period grating with low insertion loss

被引：8
|
作者：
Yang, XF [1 ]
Guo, X [1 ]
Lu, C [1 ]
Hiang, CT [1 ]
机构：
[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Network Technol Res Ctr, Singapore, Singapore
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2002年 / 35卷 / 04期
关键词：
long-period grating; apodization; gain-flattening filter;
D O I：
10.1002/mop.10583
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：
The characteristics of an apodized long-period grating are studied experimentally mud theoretically,. It has no side-lobes and almost zero insertion loss in the pass band. Changing the do and maximum ac index along the z direction of LPG can conveniently control wavelength and the value of peak loss. Suitable spectral profile of gain-flattening filter with low insertion loss is obtained by writing two or three consecutive apodized sub-gratings in one fiber with the different UV power level in the second exposure. The experiment results are in good agreement with the simulation results. (C) 2002 Wiley Periodicals.
引用
收藏
页码：283 / 286
页数：4
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