Fiber inline Michelson interferometer fabricated by one-step femtosecond laser micromachining for sensing applications

Lei Yuan; Hongbin Wu; Cong Wang; Yingyu Yu; Sumei Wang; Hai Xiao

doi:10.1117/12.2052729

20 December 2013 Fiber inline Michelson interferometer fabricated by one-step femtosecond laser micromachining for sensing applications

Lei Yuan, Hongbin Wu, Cong Wang, Yingyu Yu, Sumei Wang, Hai Xiao

Author Affiliations +

Proceedings Volume 9044, 2013 International Conference on Optical Instruments and Technology: Optical Sensors and Applications; 90441M (2013) https://doi.org/10.1117/12.2052729
Event: International Conference on Optical Instruments and Technology (OIT2013), 2013, Beijing, China

Abstract

A fiber inline Michelson interferometer fiber optic sensor was presented for sensing applications, including high temperature performance and refractive index change. The sensor was fabricated using one-step femtosecond (fs) laser micromachining technique. A step structure at the tip of a single mode optical fiber was formed during the micromachining process. The device had a loss of 16 dB and an interference visibility exceeding 18 dB. The capability of this device for temperature sensing up to 1000 °C and refractive index sensing application in various concentrations of ethanol solution were all demonstrated.

Citation Download Citation

Lei Yuan, Hongbin Wu, Cong Wang, Yingyu Yu, Sumei Wang, and Hai Xiao "Fiber inline Michelson interferometer fabricated by one-step femtosecond laser micromachining for sensing applications", Proc. SPIE 9044, 2013 International Conference on Optical Instruments and Technology: Optical Sensors and Applications, 90441M (20 December 2013); https://doi.org/10.1117/12.2052729

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