10 June 2015 Simultaneous measurement of temperature and microdisplacement based on a Mach–Zehnder interferometer cascaded with a fiber Bragg grating
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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 (dipFBG) 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.
© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)
Ye Cao, Ye Cao, Huiying Liu, Huiying Liu, Zhengrong Tong, Zhengrong Tong, Shuo Yuan, 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 . Submission:
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