ETRI Journal
- 제28권6호
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- Pages.739-744
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- 2006
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- 1225-6463(pISSN)
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- 2233-7326(eISSN)
Optimization of Thermo-Optic Parameters for Temperature-Insensitive LPWG Refractometers
- Lee, Dong-Seok (Department of Physics, Inha University) ;
- Kim, Kyong-Hon (Department of Physics, Inha University) ;
- Hwang, Seok-Hyun (Department of Physics, Inha University) ;
- Lee, Min-Hee (Department of Physics, Inha University) ;
- Lee, El-Hang (Graduate School of Information & Communication Engineering, Inha University)
- 투고 : 2006.07.01
- 발행 : 2006.12.31
초록
In this paper, we report numerically calculated results of testing a temperature-insensitive refractive sensor based on a planar-type long-period waveguide grating (LPWG). The LPWG consists of properly chosen polymer materials with an optimized thermo-optic coefficient for the core layer in a four-layer waveguide structure. The resonant wavelength shift below the spectral resolution of the conventional optical spectrum analyzer is obtained accurately over a temperature change of
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