Sensing characteristics of all-solid photonic bandgap fiber modal interferometers

Mengmei Geng; Jie Li; Li-Peng Sun; Bo Liu; Yunyun Huang; Yang Ran; Bai-Ou Guan

doi:10.1117/12.2185242

1 July 2015 Sensing characteristics of all-solid photonic bandgap fiber modal interferometers

Mengmei Geng, Jie Li, Li-Peng Sun, Bo Liu, Yunyun Huang, Yang Ran, Bai-Ou Guan

Proceedings Volume 9655, Fifth Asia-Pacific Optical Sensors Conference; 96552P (2015) https://doi.org/10.1117/12.2185242
Event: Fifth Asia Pacific Optical Sensors Conference, 2015, Jeju, Korea, Republic of

Abstract

We demonstrate an all-solid photonic bandgap fiber modal interferometer by concatenating two tapers separated with a middle section of the fiber. Unlike the conventional devices, our structure has a lower effective index in the core and a higher effective index in the cladding, which produce novel sensing characteristics. The measured sensing sensitivities are ~63pm/°C for temperarure and ~1.74nm/N for the axial stress, respectively.

Citation Download Citation

Mengmei Geng, Jie Li, Li-Peng Sun, Bo Liu, Yunyun Huang, Yang Ran, and Bai-Ou Guan "Sensing characteristics of all-solid photonic bandgap fiber modal interferometers", Proc. SPIE 9655, Fifth Asia-Pacific Optical Sensors Conference, 96552P (1 July 2015); https://doi.org/10.1117/12.2185242

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KEYWORDS

Interferometers

Cladding

Fiber Bragg gratings

Photonic crystal fibers

Photonic crystals

Structured optical fibers

Temperature metrology

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