Photonic Sensors, 2014, 4 (3): 193, 网络出版: 2014-07-10
Temperature Insensitive Bending Sensor Based on In-Line Mach-Zehnder Interferometer
Temperature Insensitive Bending Sensor Based on In-Line Mach-Zehnder Interferometer
摘要
Abstract
A simple and compact fiber bending sensor based on the Mach-Zehnder interferometer was proposed. A photonic crystal fiber (PCF) with a length of 10 mm was spliced by collapsing air holes with two conventional single mode fibers to consist of an all fiber bending sensor. The sensitivity of 0.53 nm/m-1 was obtained at 1586 nm for the curvature range from 0 to 8.514 m-1. The temperature sensitivity was very low. The measurement error due to the temperature effect was about 8.68×10-3 m-1/℃, and the temperature effect in the curvature measurement could be ignored. This device can avoid the cross sensitivity of the temperature in the curvature measurement.
Xue CHEN, Yongqin YU, Xiaomei XU, Quandong HUANG, Zhilong OU, Jishun WANG, Peiguang YAN, Chenlin DU. Temperature Insensitive Bending Sensor Based on In-Line Mach-Zehnder Interferometer[J]. Photonic Sensors, 2014, 4(3): 193. Xue CHEN, Yongqin YU, Xiaomei XU, Quandong HUANG, Zhilong OU, Jishun WANG, Peiguang YAN, Chenlin DU. Temperature Insensitive Bending Sensor Based on In-Line Mach-Zehnder Interferometer[J]. Photonic Sensors, 2014, 4(3): 193.
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