An optical fiber curvature sensor based on photonic crystal fiber modal interferometer

作者：Gong, Huaping; Song, Haifeng^*; Li, Xiaorui; Wang, Jianfeng; Dong, Xinyong

来源：Sensors and Actuators A: Physical , 2013, 195: 139-141.

DOI：10.1016/j.sna.2013.02.022

• Optical fiber curvature sensor
• PCF
• Modal interferometer

An optical fiber curvature sensor based on photonic crystal fiber (PCF) modal interferometer is demonstrated. The sensor is fabricated by a length of 5 cm PCF which is spliced between two single mode fibers (SMF). The result shows that this sensor is sensitive to curvature with a sensitivity coefficient of 4.451 nm m(-1) in the range of 0-2.14 m(-1), and the resolution of the curvature measurement is about 4.4 x 10(-3) m(-1). The temperature sensitivity of the sensor is only 7.78 pm/degrees C, so it is more suitable for curvature measuring.

• 出版日期2013-6-1
• 单位中国计量大学