High-sensitivity temperature sensor based on an alcohol-filled photonic crystal fiber loop mirror

Abstract

A compact temperature sensor based on a fiber loop mirror (FLM) combined with an alcohol-filled high- birefringence photonic crystal fiber (PCF) is proposed and experimentally demonstrated. The output of the FLM is an interference spectrum with many resonant dips, of which the wavelengths are quite sensitive to the change of the refractive index of the filled alcohol for the interference of the FLM. Simulation analysis predicts a high temperature sensitivity, and experimental results show it reaches up to $6.6\mathrm{nm}/°\mathrm{C}$ for the $6.1\text{-}\mathrm{cm}$-long PCF used in the FLM.

© 2011 Optical Society of America

Highly sensitive temperature sensor using a Sagnac loop interferometer based on a side-hole photonic crystal fiber filled with metal

Erick Reyes-Vera, Cristiano M. B. Cordeiro, and Pedro Torres
Appl. Opt. 56(2) 156-162 (2017)

Phenomenon in an alcohol not full-filled temperature sensor based on an optical fiber Sagnac interferometer

Chun-Liu Zhao, Zhiqiang Wang, Shuqin Zhang, Liang Qi, Chuan Zhong, Zaixuan Zhang, Shangzhong Jin, Jiangtao Guo, and Huifeng Wei
Opt. Lett. 37(22) 4789-4791 (2012)

High-sensitivity temperature sensor based on a droplet-like fiber circle

Jianglei Xie, Ben Xu, Yi Li, Juan Kang, Changyu Shen, Jianfeng Wang, Yongxing Jin, Honglin Liu, Kai Ni, Xinyong Dong, Chunliu Zhao, and Shangzhong Jin
Appl. Opt. 53(18) 4085-4088 (2014)

Some features of the photonic crystal fiber temperature sensor with liquid ethanol filling

Yongqin Yu, Xuejin Li, Xueming Hong, Yuanlong Deng, Kuiyan Song, Youfu Geng, Huifeng Wei, and Weijun Tong
Opt. Express 18(15) 15383-15388 (2010)

Unique characteristics of a selective-filling photonic crystal fiber Sagnac interferometer and its application as high sensitivity sensor

Tingting Han, Yan-ge Liu, Zhi Wang, Junqi Guo, Zhifang Wu, Shuanxia Wang, Zhili Li, and Wenyuan Zhou
Opt. Express 21(1) 122-128 (2013)