Abstract

We present, for the first time to our knowledge, a sapphire-fiber-based distributed high-temperature sensing system based on a Raman distributed sensing technique. High peak power laser pulses at 532 nm were coupled into the sapphire fiber to generate the Raman signal. The returned Raman Stokes and anti-Stokes signals were measured in the time domain to determine the temperature distribution along the fiber. The sensor was demonstrated from room temperature up to 1200°C in which the average standard deviation is about 3.7°C and a spatial resolution of about 14 cm was achieved.

© 2016 Optical Society of America

Temperature dependence of sapphire fiber Raman scattering

Bo Liu, Zhihao Yu, Zhipeng Tian, Daniel Homa, Cary Hill, Anbo Wang, and Gary Pickrell
Opt. Lett. 40(9) 2041-2044 (2015)

Point-by-point inscribed sapphire parallel fiber Bragg gratings in a fully multimode system for multiplexed high-temperature sensing

Guannan Shi, Randy Shurtz, Gary Pickrell, Anbo Wang, and Yizheng Zhu
Opt. Lett. 47(18) 4724-4727 (2022)

High-temperature strain sensor based on sapphire fiber Bragg grating

Jun He, Zhuoda Li, Xizhen Xu, Qingming Tan, Xiaoyu Weng, Liwei Liu, Junle Qu, Changrui Liao, and Yiping Wang
Opt. Lett. 49(3) 446-449 (2024)

Distributed high-temperature sensing based on optical frequency domain reflectometry with a standard single-mode fiber

Huajian Zhong, Cailing Fu, Pengfei Li, Bin Du, Chao Du, Yanjie Meng, and Yiping Wang
Opt. Lett. 47(4) 882-885 (2022)

High-speed and high-resolution YAG fiber based distributed high temperature sensing system empowered by a 2D image restoration algorithm

Xu Liu, Ruimin Jie, Subhabrata Bera, Taiyu Yan, Wei Peng, Ciming Zhou, Yunjiang Rao, and Bo Liu
Opt. Express 31(4) 6170-6183 (2023)