Control of resonant peak depths of tunable long-period fiber gratings using overcoupling

被引：5

作者：

Nam, Sung Hyun ^{[1
]}

Lee, Jonathan ^{[1
]}

Yin, Shizhuo ^{[1
]}

机构：

[1] Penn State Univ, Dept Elect Engn, University Pk, PA 16802 USA

来源：

OPTICS COMMUNICATIONS | 2011年 / 284卷 / 04期

关键词：

Long period fiber gratings; Tunable filters; Electro-optic tuning; Mode coupling;

D O I：

10.1016/j.optcom.2010.10.027

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a method to reduce changes in the resonant peak depth of a long period fiber grating (LPFG) as the resonant band is tuned by varying the external refractive index We theoretically analyze the effects of the initial coupling strength on the peak depth change as external refractive index is varied By controlling the initial coupling strength it is experimentally demonstrated that an optimum peak depth can be obtained over a range of operating wavelengths that will maximize the sensitivity and stability of LPFG based sensors and tunable filters (C) 2010 Elsevier BV All rights reserved

引用

页码：961 / 964

页数：4

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