Temperature and strain response of Michelson interferometer with asymmetric two-core photonic crystal fiber

Jihee Han; Bongkyun Kim; Khurram Naeem; Youngjoo Chung

doi:10.1117/12.975198

7 November 2012 Temperature and strain response of Michelson interferometer with asymmetric two-core photonic crystal fiber

Jihee Han, Bongkyun Kim, Khurram Naeem, Youngjoo Chung

Author Affiliations +

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 84217D (2012) https://doi.org/10.1117/12.975198
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

Abstract

We fabricated asymmetric two-core photonic crystal fiber (AS-TC-PCF) and observed the temperature and strain responses of the Michelson interferometer based on it. The asymmetric two cores induce optical path length difference and produce polarization-dependent interference fringes. The temperature and strain sensitivities of the AS-TC-PCF were measured using the interference fringe shift. With increasing temperature, the interference fringes shifted to longer wavelengths, and the temperature sensitivities were measured to be 5.06 pm/°C and 11.05 pm/°C, respectively, for different polarizations. However, with increasing strain, the interference fringes shifted to shorter wavelengths, and the strain sensitivities were measured to be -0.50 pm/με and -1.87 pm/με, respectively.

Citation Download Citation

Jihee Han, Bongkyun Kim, Khurram Naeem, and Youngjoo Chung "Temperature and strain response of Michelson interferometer with asymmetric two-core photonic crystal fiber", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84217D (7 November 2012); https://doi.org/10.1117/12.975198

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