Temperature sensitivity of the inline interferometer based on a two-core photonic crystal fiber selectively filled with polymer

Khurram Naeem; Bok Hyeon Kim; Bongkyun Kim; Youngjoo Chung

doi:10.1117/12.2184257

1 July 2015 Temperature sensitivity of the inline interferometer based on a two-core photonic crystal fiber selectively filled with polymer

Khurram Naeem, Bok Hyeon Kim, Bongkyun Kim, Youngjoo Chung

Author Affiliations +

Proceedings Volume 9655, Fifth Asia-Pacific Optical Sensors Conference; 96552G (2015) https://doi.org/10.1117/12.2184257
Event: Fifth Asia Pacific Optical Sensors Conference, 2015, Jeju, Korea, Republic of

Abstract

We propose and demonstrate a highly sensitive micro-fluidic temperature sensor based on a two-core photonic crystal fiber (TCPCF). TCPCF has two cores of small asymmetry in sizes that serves as two arms in the inline Mach-Zehnder interferometer (MZI). Using manual gluing and subsequent infiltration technique, the cladding air holes near one core are selectively filled with polymer of high thermo-optic coefficient, which makes its core-mode effective index sensitive to temperature variation and induces large thermo-optic mismatch between the two cores. A high sensitivity of 1.595 nm/ ^oC is achieved in our experiment, which is almost 200 times improved from that of the sensor device before polymer infiltration process.

Citation Download Citation

Khurram Naeem, Bok Hyeon Kim, Bongkyun Kim, and Youngjoo Chung "Temperature sensitivity of the inline interferometer based on a two-core photonic crystal fiber selectively filled with polymer", Proc. SPIE 9655, Fifth Asia-Pacific Optical Sensors Conference, 96552G (1 July 2015); https://doi.org/10.1117/12.2184257

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