Temperature and Twist Sensor Based on the Sagnac Interferometer with Long-Period Grating in Polarization-Maintaining Fiber

Temperature and Twist Sensor Based on the Sagnac Interferometer with Long-Period Grating in Polarization-Maintaining Fiber

We utilized a CO<sub>2</sub> laser to carve long-period fiber gratings (LPFGs) on polarization-maintaining fibers (PMFs) along the fast and slow axes. Based on the spectra of LPFGs written along two different directions, we found that when LPFG was written along the fast axis, the spectr...

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Bibliographic Details
Main Authors:	Qiufang Zhang, Yiwen Zheng, Yixin Zhu, Qianhao Tang, Yongqin Yu, Lihu Wang
Format:	Article
Language:	English
Published:	MDPI AG 2024-01-01
Series:	Sensors
Subjects:	long period fiber grating polarization-maintaining fiber Sagnac interferometer temperature and twist sensor
Online Access:	https://www.mdpi.com/1424-8220/24/2/377

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