Discrimination of chemical vapor and temperature effects by using a polarization-maintaining photonic crystal fiber interferometer

Naram Jun; Hyun-Joo Kim; Sang Bae Lee; Young-Geun Han

doi:10.1117/12.966374

17 October 2012 Discrimination of chemical vapor and temperature effects by using a polarization-maintaining photonic crystal fiber interferometer

Naram Jun, Hyun-Joo Kim, Sang Bae Lee, Young-Geun Han

Author Affiliations +

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 842110 (2012) https://doi.org/10.1117/12.966374
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

Abstract

A reflection-type interferometer based on a polarization-maintaining photonic crystal fiber (PM-PCF) is investigated for simultaneous measurement of chemical vapor and temperature. The PM-PCF with a length of 2.6 cm is fusion-spliced to standard single-mode fiber and airholes of the PM-PCF are fully collapsed allowing the excitation of different core and cladding modes in the PM-PCF corresponding to two orthogonal polarization modes. Since airholes at the end of the PM-PCF interferometer are left open, a chemical vapor can be infiltrated into the voids. Different sensitivities corresponding to input polarization states are utilized for discrimination between chemical vapor and temperature effects.

Citation Download Citation

Naram Jun, Hyun-Joo Kim, Sang Bae Lee, and Young-Geun Han "Discrimination of chemical vapor and temperature effects by using a polarization-maintaining photonic crystal fiber interferometer", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 842110 (17 October 2012); https://doi.org/10.1117/12.966374

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