Phase-shifted Bragg grating filters with symmetrical structures

被引：97
|
作者：
Wei, L [1 ]
Lit, JWY [1 ]
机构：
[1] WILFRID LAURIER UNIV,DEPT PHYS & COMP,WATERLOO,ON N2L 3C5,CANADA
来源：
JOURNAL OF LIGHTWAVE TECHNOLOGY | 1997年 / 15卷 / 08期
基金：
加拿大自然科学与工程研究理事会;
关键词：
fiber Bragg grating; optical bandpass filter; phase-shifted grating;
D O I：
10.1109/50.618363
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：
A comprehensive theoretical analysis of the compound phase-shifted uniform fiber Bragg grating (FBG) filter is presented. The transmission characteristics are examined by a transfer matrix formulation. It is shown that the transmission spectrum of such a filter is significantly controlled by the ratio of the grating lengths. By suitably choosing the ratio, a quasi-flat-top spectrum may be obtained. The general condition for the optimum case is derived. This characteristic makes the compound phase-shifted uniform FBG filter particularly advantageous for applications in wavelength-multiplexed optic-fiber communication systems.
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页码：1405 / 1410
页数：6
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