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Fabrication and Characterization of a Highly Temperature Sensitive Device Based on Nematic Liquid Crystal-Filled Photonic Crystal Fiber

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7 Author(s)
Hu, D.J.J. ; R F& Opt. Dept., Agency for Sci., Technol. & Res. (A*STAR), Singapore, Singapore ; Jun Long Lim ; Ying Cui ; Milenko, K.
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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 44°C to 53°C. The mode properties of the device are theoretically investigated, confirming the mode coupling principle and the temperature sensitivity of the device.

Published in:

Photonics Journal, IEEE  (Volume:4 ,  Issue: 5 )