Hu, D.J.J.; Jun Long Lim; Ying Cui; Milenko, K.; Yixin Wang; Shum, P.P.; Wolinski, T., "Fabrication and Characterization of a Highly Temperature Sensitive Device Based on Nematic Liquid Crystal-Filled Photonic Crystal Fiber," Photonics Journal, IEEE , vol.4, no.5, pp.1248,1255, Oct. 2012
We report on the fabrication and characterization of a highly sensitive temperature sensor by selectively filling the nematic liquid crystal (NLC) 6CHBT into a single void within the photonic crystal fiber (PCF) structure. The temperature response of the device is experimentally characterized, showing good linearity, repeatability, and sensitivity at around -3:90 nm/C within the temperature range from 44C to 53C. The mode properties of the device are theoretically investigated, confirming the mode coupling principle and the temperature sensitivity of the device.
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This work was supported in part by the A*STAR-SERC Thematic Strategic Research Program (TSRP) under Grant 102-152-0012, Singapore.