Spectra of fiber Bragg grating and long period fiber grating undergoing linear and quadratic strain

被引:2
|
作者
Yuan Y.-Q. [1 ]
Liang L. [1 ]
Zhang D.-S. [1 ]
机构
[1] Key Laboratory of Fiber Optic Sensing Technology and Information Processing, Ministry of Education of China, Wuhan University of Technology, Wuhan
关键词
Reflection Spectrum; Fiber Bragg Grating; Strain Gradient; Wavelength Shift; Effective Refractive Index;
D O I
10.1007/s11801-009-9053-3
中图分类号
学科分类号
摘要
The effects of linear and quadratic strain on the reflective spectrum of FBG and the transmission spectrum of LPFG have been numerically investigated based on the coupled -mode equations. The results show that for the FBG or LPFG undergoing only linear strain, the reflection or transmission spectrum is symmetrical about its central wavelength, the dependence relationships of the central wavelength shift, full-width-at-half-maximum, peak intensity upon the strain gradient have been obtained. © Tianjin University of Technology and Springer-Verlag GmbH 2009.
引用
收藏
页码:182 / 185
页数:3
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