Lasers, Fiber Optics, and Communications

High-sensitivity optical sensing of temperature based on side-polished fiber with polymer nanoporous cladding

[+] Author Affiliations
Yongchun Zhong

Jinan University, Department of Optoelectronic Engineering, No. 601, West Huangpu Avenue, Guangzhou, Guangdong Province 510632, China

Jinan University, Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Education Institutes, No. 601, West Huangpu Avenue, Guangzhou, Guangdong Province 510632, China

Shan Li, Li Tang, Yong Zhang

Jinan University, Department of Optoelectronic Engineering, No. 601, West Huangpu Avenue, Guangzhou, Guangdong Province 510632, China

Zhe Chen

Jinan University, Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Education Institutes, No. 601, West Huangpu Avenue, Guangzhou, Guangdong Province 510632, China

Jianhui Yu, Heyuan Guan

Jinan University, Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, No. 601, West Huangpu Avenue, Guangzhou, Guangdong Province 510632, China

Huihui Lu

Jinan University, Key Laboratory of Visible Light Communications of Guangzhou, No. 601, West Huangpu Avenue, Guangzhou, Guangdong Province 510632, China

Opt. Eng. 55(10), 106123 (Oct 26, 2016). doi:10.1117/1.OE.55.10.106123
History: Received July 28, 2016; Accepted October 3, 2016
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Abstract.  We demonstrated temperature sensing of a side-polished fiber with polymer nanoporous film cladding, which was constructed by dehydrating dichromate gelatin film on the polished surface. Due to intermodal interference of core mode and cladding mode, two main transmission valleys were observed at 1219.2 and 1373.2 nm. The modulation amplitudes are 8 and 12 dB, respectively. These two transmission valleys show significant sensitivity to the temperature. At the wavelength of 1373.2 nm, the position of transmission valley blueshifted 114 nm while the temperature changes from 30°C to 90°C, and the sensitivity of temperature was up to 1.92  nm/°C. The linear correlation coefficient was 98.67%. The temperature sensing characteristics of nanoporous cladding fiber was successfully demonstrated, and it shows a high potential in photonics applications.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Yongchun Zhong ; Shan Li ; Li Tang ; Zhe Chen ; Jianhui Yu, et al.
"High-sensitivity optical sensing of temperature based on side-polished fiber with polymer nanoporous cladding", Opt. Eng. 55(10), 106123 (Oct 26, 2016). ; http://dx.doi.org/10.1117/1.OE.55.10.106123


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