[1] Wang Longde, , Zhang Tong, et al. Temperature sensor based on polymer thin film optical waveguide [J]. Journal of Southeast University (English Edition), 2013, 29 (2): 152-157. [doi:10.3969/j.issn.1003-7985.2013.02.008]

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Temperature sensor based on polymer thin film optical waveguide()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

29

Issue:

2013 2

Page:

152-157

Research Field:

Mathematics, Physics, Mechanics

Publishing date:

2013-06-20

Info

Title:

Temperature sensor based on polymer thin film optical waveguide

Author(s):

Wang Longde¹;  2;  3;  4;  Zhang Tong¹;  3;  4;  Zhang Xiaoyang¹;  3;  4;  Li Ruozhou¹;  3;  Wang Luning¹

¹School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China
²Department of Chemistry and Chemical Engineering, Huainan Normal University, Huainan 232001, China
³Key Laboratory of Micro-Inertial Instrument and Advanced Navigation Technology of Ministry of Education, Nanjing 210096, China
⁴Suzhou Key Laboratory of Metal Nano-Optoelectronic Technology, Suzhou Research Institute of Southeast University, Suzhou 215123, China

Keywords:

temperature sensor;  planar optical waveguide;  guided wave mode;  thermo-optic effect;  prism coupling

PACS:

O431.1

DOI:

10.3969/j.issn.1003-7985.2013.02.008

Abstract:

Based on attenuated total reflection(ATR)and thermo-optic effect, the polymeric thin film planar optical waveguide is used as the temperature sensor, and the factors influencing the sensitivity of the temperature sensor are comprehensively analyzed. Combined with theoretical analysis and experimental investigation, the sensitivity of the temperature sensor is related to the thicknesses of the upper cladding layer, the waveguide layer, the optical loss of the polymer material and the guided wave modes. The results show that the slope value about reflectivity and temperature, which stands for the sensitivity of the polymer thin film temperature sensor, is associated with the waveguide film thickness and the guided wave modes, and the slope value is the highest in the zero reflectance of a certain transverse electric(TE)mode. To improve the sensitivity of the temperature sensor, the sensor’s working incident light exterior angle α should be chosen under a certain TE mode with the reflectivity to be zero. This temperature sensor is characterized by high sensitivity and simple structure and it is easily fabricated.

References:

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Memo

Memo:

Biographies: Wang Longde(1972—), male, graduate; Zhang Tong(corresponding author), male, doctor, professor, tzhang@seu.edu.cn.
Foundation items: The National Natural Science Foundation of China(No.60977038), the Specialized Research Fund for the Doctoral Program of Higher Education(No.20110092110016), the National Basic Research Program of China(973 Program)(No.2011CB302004), the Foundation of Key Laboratory of Micro-Inertial Instrument and Advanced Navigation Technology of Ministry of Education of China(No. 201204).
Citation: Wang Longde, Zhang Tong, Zhang Xiaoyang, et al. Temperature sensor based on polymer thin film optical waveguide[J].Journal of Southeast University(English Edition), 2013, 29(2):152-157.[doi:10.3969/j.issn.1003-7985.2013.02.008]

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