Bibliographic Details
| Title: |
A Temperature Sensor Based on a Symmetrical Metal-Cladding Optical Waveguide. |
| Authors: |
Zhou Guo-Rui1, Feng Guo-Ying1 guoying_feng@yahoo.com.cn, Zhang Yi1, Ma Zi2, Wang Jian-Jun3 |
| Source: |
Chinese Physics Letters. Feb2012, Vol. 29 Issue 2, p1-3. 3p. |
| Subjects: |
Temperature sense, Chemical detectors, Metal cladding, Optical waveguides, Metallic films, Lithium niobate |
| Abstract: |
A compact temperature sensor based on a symmetrical metal-cladding optical waveguide using free-space coupling is proposed and demonstrated theoretically and experimentally. The symmetrical Au-cladding optical waveguide is based on a thin LiNbO3 slab sandwiched between two metal films, which serve as the coupling layer and reflecting panel, respectively. The sensitivity of this sensor of 9.08 x 10-2 deg/°C, 6.6 x 10-2 deg/°C and 4.8 x 10-2 deg/°C corresponding to 3238-order, 3237-order and 3236-order modes, respectively, are obtained. Higher resolution is predicted with a larger linear expansion coefficient material and a higher resolution &thetas;/2&thetas; goniometer. [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
