Temperature-Independent Force Sensor Based on PSLPFG Induced by Electric-Arc Discharge

A novel approach to create a phase shift in a long period fiber grating (LPFG) by using the electric-arc discharge technique is first proposed and demonstrated. We observe that an equivalent phase shift is created at the middle of the LPFG by slight tapering the grating by discharge arc. By measurin...

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Bibliographic Details
Published in:IEEE photonics technology letters 2015-09, Vol.27 (18), p.1946-1948
Main Authors: Li, Xiaolan, Zhang, Weigang, Chen, Lei, Yan, Tieyi
Format: Article
Language:English
Subjects:
Discharges (electric)
electric arc discharge
Fiber gratings
Force
force sensor
Gratings
Optical fiber sensors
phase shift long period fiber grating
tapered
Temperature measurement
Temperature sensors
temperature-independent
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Summary:A novel approach to create a phase shift in a long period fiber grating (LPFG) by using the electric-arc discharge technique is first proposed and demonstrated. We observe that an equivalent phase shift is created at the middle of the LPFG by slight tapering the grating by discharge arc. By measuring the wavelength separation of the two resonance peaks, we obtain a force sensor without any temperature crosstalk.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2015.2444799