Analysis of etched long-period fibre grating and its response to external refractive index

被引:166
作者
Chiang, KS [1 ]
Liu, YQ
Ng, MN
Dong, XY
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
[3] Nankai Univ, Inst Modern Opt, Tianjin 300071, Peoples R China
关键词
D O I
10.1049/el:20000701
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
Analytical formulas are presented for the first time to describe the shift in the resonance wavelength of a long-period fibre grating (LPFG) in response to etching of the fibre cladding or a change in the external refractive index. The accuracy of the formulas is confirmed by comparison with numerical simulations and experimental results. It is shown that the resonance wavelengths of an etched LPFG are more sensitive to the external refractive index than those of an unetched grating.
引用
收藏
页码:966 / 967
页数:2
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