.png){kind=icon}
.png){kind=icon}
Return
Simultaneous temperature and strain sensing based on a supermode interferometer
.png){kind=icon}
PRE
AI
DOI：10.3788/COL202523.011202.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
A novel Mach-Zehnder interferometer (MZI) sensor based on multiple supermode interferences that can be used for dualparameter measurements of temperature and strain is proposed and demonstrated. The MZI is made by splicing a coupled four-core sapphire-derived fiber (FSDF) between two single-mode fibers, utilizing the differences in temperature response and strain response of different supermodes in the FSDF to realize the simultaneous measurement of the two parameters. Experimental results demonstrate that the proposed MZI can achieve up to 1600 mu E and 1000 degrees C measurements with a temperature-strain cross-sensitivity of approximately 0.075 degrees C/mu E.
Keywords:
supermode
dual-parameter measurement
fiber optic sensor
Mach-Zehnder interferometer.