Analysis of apodized phase-shifted long-period fiber gratings

被引：35
作者：
Chan, FYM
Chiang, KS
机构：
[1] City Univ Hong Kong, Optoelect Res Ctr, Hong Kong, Hong Kong, Peoples R China
[2] City Univ Hong Kong, Dept Elect Engn, Hong Kong, Hong Kong, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2005年 / 244卷 / 1-6期
关键词：
coupled-mode theory; long-period fiber gratings; apodized gratings; phase-shifted gratings; optical filters; wavelength-division multiplexers;
D O I：
10.1016/j.optcom.2004.09.078
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present a detailed theoretical analysis of the transmission spectra of apodized phase-shifted long-period fiber gratings (LPFGs). Simple analytical formulas are derived to provide insights into the characteristics of the gratings and facilitate their designs for specific applications. In particular, we focus on the achievement of zero or complete transmission at the resonance wavelength with zero- or pi-phase-shifted gratings. The effects of index apodization and length apodization on the transmission spectra of the LPFGs are studied in detail. A number of numerical examples are given to illustrate the features of various kinds of LPFG designs. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：233 / 243
页数：11
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