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Thermal properties analysis of BDK doped polymer optical fiber gratings

YANHUA LUO1,2,* , WENXUAN WU1, XUSHENG CHENGc3, XIN WANG1, XIUJIE TIAN1, TONGXIN WANG1, QIJIN ZHANG1, GANG-DING PENG2, BING ZHU3

Affiliation

  1. CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Key Laboratory of Optoelectronic Science and Technology, Anh
  2. School of Electrical Engineering, University of New South Wales, Sydney 2052, NSW, Australia
  3. Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei, Anhui 230026, China

Abstract

To know more about the thermal properties of benzil dimethyl ketal (BDK) doped polymer optical fiber (POF) gratings, differential thermal analysis, thermal mechanical analysis, thermal optical analysis and thermal response analysis were performed. The results show that the maximum working temperature of such POF gratings is around 81.7oC. This POF expands after heating till it reaches 80.0oC and then thrinks. The linear thermal expansion coefficient of POF is around 78.51×10-6 /oC from 25.4 to 80.0 oC. The thermal optic coefficient is -1.73×10-4 /oC. Furthermore, the sensitivity of such POF gratings is around -147 pm/oC at the temperature region from 24oC to 52oC. All these results offer the direction to tailor the BDK-doped POF gratings for temperature sensing, especially for temperature sensing in-vivo..

Keywords

Polymer optical fiber gratings, Temperature sensor, Thermal properties, Thermal expansion, Thermal-response.

Submitted at: May 6, 2012
Accepted at: Sept. 20, 2012

Citation

YANHUA LUO, WENXUAN WU, XUSHENG CHENGc, XIN WANG, XIUJIE TIAN, TONGXIN WANG, QIJIN ZHANG, GANG-DING PENG, BING ZHU, Thermal properties analysis of BDK doped polymer optical fiber gratings, Journal of Optoelectronics and Advanced Materials Vol. 14, Iss. 9-10, pp. 814-819 (2012)