Simultaneous measurement of temperature and microdisplacement based on a Mach–Zehnder interferometer cascaded with a fiber Bragg grating

Ye Cao; Huiying Liu; Zhengrong Tong; Shuo Yuan

doi:10.1117/1.OE.54.6.066101

10 June 2015 Simultaneous measurement of temperature and microdisplacement based on a Mach–Zehnder interferometer cascaded with a fiber Bragg grating

Ye Cao, Huiying Liu, Zhengrong Tong, Shuo Yuan

Author Affiliations +

Optical Engineering, Vol. 54, Issue 6, 066101 (June 2015). https://doi.org/10.1117/1.OE.54.6.066101

Abstract

An all-fiber sensor for simultaneous measurement of temperature and microdisplacement is presented and demonstrated. The sensor head is fabricated by a peanut structure Mach–Zehnder interferometer (MZI) cascaded with a fiber Bragg grating (FBG). Experimental results show that the temperature sensitivities of the MZI (dip1) and the FBG (dip_FBG) are 0.0909 and 0.0121 nm/°C, respectively. The microdisplacement sensitivities are −0.0233 and 0.0122 nm/μm, respectively. The simultaneous measurement of the temperature and microdisplacement is demonstrated based on the sensitive matrix. With the advantages of low cost and easy fabrication, this sensor has potential applications in security, construction, and energy.

Citation Download Citation

Ye Cao, Huiying Liu, Zhengrong Tong, and Shuo Yuan "Simultaneous measurement of temperature and microdisplacement based on a Mach–Zehnder interferometer cascaded with a fiber Bragg grating," Optical Engineering 54(6), 066101 (10 June 2015). https://doi.org/10.1117/1.OE.54.6.066101

Published: 10 June 2015

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