Refractive index sensitivity measurement of a long period waveguide grating

被引：28
作者：
Kwon, MS [1 ]
Shin, SY [1 ]
机构：
[1] Korea Adv Inst Sci & Technol, Dept Elect Engn & Comp Sci, Taejon 305701, South Korea
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2005年 / 17卷 / 09期
关键词：
gratings; integrated optics; optical polymers; optical waveguide filters; sensitivity;
D O I：
10.1109/LPT.2005.853029
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：
For the application of a long-period waveguide grating (LPWG) to a refractive index (RI) sensor, its RI sensitivity is experimentally investigated. The characteristics of the LPWG made of thermocurable polymers are, observed when individual liquids with different RIs cover its cladding surface. They are sensitive to the RI of liquid. For the transverse-magnetic mode, the center wavelength of a resonance band increases by 77.7 nm as the RI of liquid increases from 1.0 to 1.47. The experimental results indicate that the LPWG may be used as an RI sensor.
引用
收藏
页码：1923 / 1925
页数：3
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