Dual wavelength filtering properties of phase-shifted fiber Bragg grating and sampled fiber Bragg grating

被引：1

作者：

Tian L. ^{[1
]}

Zhang A. ^{[1
]}

机构：

[1] Ministry of Education Communication Device and Technology Engineering Research Center, School of Computer and Communication Engineering, Tianjin University of Technology

来源：

Zhongguo Jiguang/Chinese Journal of Lasers | 2010年 / 37卷 / 11期

关键词：

Dual wavelength filtering; Duty cycle; Fiber optics; Phase-shifted grating; Sampled grating;

D O I：

10.3788/CJL20103711.2896

中图分类号：

学科分类号：

摘要：

Phase-shifted fiber Bragg grating and sampled fiber Bragg grating with dual wavelength filtering properties are designed and their properties with transmission matrix method are studied. As a result, both multi- π phase-shifted grating and π phase-shifted sampled grating have dual wavelength reflective profile. Moreover, the side lobe of reflective profile of π phase-shifted sampled grating is lower than that of multi- π phase-shifted grating. By adjusting the duty cycle of π phase-shifted sampled grating in the range of 0.66-0.8, better dual wavelength filtering profile is obtained, especially the side lobe reflective index is lowest when the duty cycle is 0.75.

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页码：2896 / 2900

页数：4