Chinese Optics Letters, Volume. 19, Issue 4, 041202(2021)
Highly sensitive torsion sensor based on triangular-prism-shaped long-period fiber gratings
Figures & Tables(7)
Fig. 3. Geometric characteristic of the TPS-LPFG. (a) Schematic diagram of the TPS-LPFG. (b) Side view of the TPS-LPFG.
Fig. 5. Torsion characteristics of TPS-LPFG. (a) Spectrum of torsion response. (b) Measured resonant wavelength shift of different applied twist rate.
Table 1. Comparison of the Torsion Sensitivity and Length between the TPS-LPFG and Other Sensors
View tableView in ArticleTable 1. Comparison of the Torsion Sensitivity and Length between the TPS-LPFG and Other Sensors
Fiber Structure Sensitivity [nm/(rad/m)] Length (mm) Reference SMF Corrugated LPFGs 0.18 20 [ 5 ]SMF LPFG written by high-frequency laser pulses 0.03 24 [ 8 ]SMF LPFG based on periodical screw-type distortions 0.16 12.6 [ 9 ]Two-mode fiber Helical LPFGs 0.05 24 [ 10 ]SMF Segmented LPFG 0.14 24.5 [ 11 ]SMF LPFG fabricated by femtosecomd laser pulses 0.11 34.2 [ 18 ]PCF Helical photonic crystal fiber 0.05 50 [ 19 ]SMF Chirp LPFG written in twisted fiber 0.21 25 [ 20 ]SMF TPS-LPFG 0.54 5.6 This work
Tools
Get Citation
Copy Citation Text
Senyu Wang, Yiwei Ma, Xiaoyang Li, Yang Yi, Cuiting Sun, Jingyu Lin, Chengguo Tong, Yuxiang Li, Tao Geng, Weimin Sun, Libo Yuan. Highly sensitive torsion sensor based on triangular-prism-shaped long-period fiber gratings[J]. Chinese Optics Letters, 2021, 19(4): 041202
Paper Information
Category: Instrumentation, Measurement, and Optical Sensing
Received: May. 19, 2020
Accepted: Oct. 19, 2020
Published Online: Feb. 4, 2021
The Author Email: Yuxiang Li (liyuxiang11@hrbeu.edu.cn), Tao Geng (gengtao_hit_oe@126.com)
© Copyright 2018-2021 | Chinese Laser Press.
All Rights Reserved 沪ICP备15018463号-20