Abstract
We present a cholesteric liquid crystal (CLC)-based optical fiber temperature sensor using a 1250 nm band wavelength-swept laser (WSL). The WSL is implemented using two semiconductor optical amplifiers (SOAs) with different center wavelengths connected in parallel in the form of a Mach-Zehnder interferometer in a laser resonator. At 3.6 kHz scanning frequency, the 10 dB bandwidth was about 223 nm from 1129 nm to 1352 nm. As the temperature of the CLC cell increased, the long-wavelength edge of the reflection band shifted to shorter wavelengths. The relationship between the temperature change and the central wavelength change of the reflection band was obtained to be almost linear.
© 2022 The Author(s)
PDF ArticleMore Like This
Yu Wang, Donghao Yang, Shaohua Gao, Xinzheng Zhang, Irena Drevensek-Olenik, Qiang Wu, Marouen Chemingui, Zhigang Chen, and Jingjun Xu
JW3B.63 CLEO: Applications and Technology (CLEO:A&T) 2022
Po-Yen Chen, Kuan-Cheng Liao, Ja-Hon Lin, Yao-Hui. Chen, Shwu-Yun Tsay Tzeng, and Jin-Jei Wu
WPA_15 Conference on Lasers and Electro-Optics/Pacific Rim (CLEO/PR) 2013
Kuan-Cheng Liao, Chun-Hao Chen, Li-Hao Jian, Ja-Hon Lin, Shwu-Yun Tsay, and Yao-Hui
18p_C3_6 JSAP-OSA Joint Symposia (JSAP) 2014