A strain sensor based on in-line fiber Mach-Zehnder interferometer in twin-core photonic crystal fiber

作者：Qureshi Khurram Karim^*; Liu Zhengyong; Tam Hwa Yaw; Zia M Fahad

来源：Optics Communications, 2013, 309: 68-70.

DOI：10.1016/j.optcom.2013.06.057

• Optical fiber sensor
• Strain sensor
• Mach-Zehnder interferometer

We experimentally demonstrate a strain sensor realized using a twin-core photonic crystal fiber (PCF). The strain sensor element consists of a 10 cm long in-fiber Mach-Zehnder interferometer consisting of twin-core PCF. The output spectra of the sensing element is measured and analyzed under various strain levels. The sensitivity of the strain measurement of -0.31 pm/mu epsilon is achieved within a range from 0 to 4000 mu epsilon. The effect of temperature is also analyzed.

• 出版日期2013-11-15
• 单位中国石油大学（北京）; 香港理工大学