Step-changed long-period fiber gratings

被引：25
|
作者：
Guan, BO [1 ]
Zhang, AP
Tam, HY
Chan, HLW
Choy, CL
Tao, XM
Demokan, MS
机构：
[1] Hong Kong Polytech Univ, Dept Appl Phys, Kowloon, Hong Kong, Peoples R China
[2] Hong Kong Polytech Univ, Dept Elect Engn, Photon Res Ctr, Kowloon, Hong Kong, Peoples R China
[3] Hong Kong Polytech Univ, Inst Text & Clothing, Kowloon, Hong Kong, Peoples R China
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2002年 / 14卷 / 05期
关键词：
band-rejection filters; gain flattening; long-period gratings; mode coupling; optical fiber filters;
D O I：
10.1109/68.998716
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 spectral characteristics of a new type of long-period grating (LPG) structure, step-changed LPG, are investigated theoretically and experimentally. It is shown that the spectral profile of such gratings can be tailored by adjusting the step parameters. A good agreement between simulated results and measured spectra is obtained. This type of LPG has potential applications in gain flattening of erbium-doped fiber amplifiers.
引用
收藏
页码：657 / 659
页数：3
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