Chinese Optics Letters, Volume. 18, Issue 2, 021203(2020)
A new phase-shifted long-period fiber grating for simultaneous measurement of torsion and temperature
Figures & Tables(10)
Fig. 1. Experimental setup for fabricating the pre-twisted structure.
Fig. 2. Transmission spectra of the pre-twisted structure, LPFG, and PS-LPFG.
Fig. 4. Experimental setup for torsion and temperature measurement.
Fig. 5. Transmission spectra of the PS-LPFG under different torsion rates.
Fig. 7. Transmission spectra of the PS-LPFG under different temperatures.
Fig. 8. Resonance wavelength of the PS-LPFG responding to temperature.
Fig. 9. Simultaneous measurement of torsion and temperature results. (a) Torsion sensitivities of the PS-LPFG under different temperatures. (b) Temperature sensitivities of the PS-LPFG under different torsion rates.
Table 1. Experimental Parameters for Fabricating the Pre-twisted Structure
View tableView in ArticleTable 1. Experimental Parameters for Fabricating the Pre-twisted Structure
Parameter Data Unit Heating temperature °C Heating time 10 s Heating length 1 mm Number of twisting turns 15 1
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Cuiting Sun, Ran Wang, Xiren Jin, Zemin Wang, Weiliang Liu, Shuo Zhang, Yiwei Ma, Jingyu Lin, Yue Li, Tao Geng, Weimin Sun, Zhongquan Qu, Libo Yuan. A new phase-shifted long-period fiber grating for simultaneous measurement of torsion and temperature[J]. Chinese Optics Letters, 2020, 18(2): 021203
Paper Information
Category: Optical Sensing, Measurements, and Metrology
Received: Sep. 16, 2019
Accepted: Nov. 7, 2019
Posted: Nov. 7, 2019
Published Online: Jan. 7, 2020
The Author Email: Tao Geng (gengtao_hit_oe@126.com)
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