Gas sensor based on hollow-core photonic crystal fibers with high relative sensitivity

Liangcheng Duan; Ying Lu; Congjing Hao; Baoqun Wu; Jianqan Yao

doi:10.1117/12.2034247

15 October 2013 Gas sensor based on hollow-core photonic crystal fibers with high relative sensitivity

Liangcheng Duan, Ying Lu, Congjing Hao, Baoqun Wu, Jianqan Yao

Proceedings Volume 8924, Fourth Asia Pacific Optical Sensors Conference; 892425 (2013) https://doi.org/10.1117/12.2034247
Event: Asia Pacific Optical Sensors Conference 2013, 2013, Wuhan, China

Abstract

A hollow-core photonic crystal fiber (HC-PCF)-based gas sensor is proposed and numerically investigated through the finite element method. To obtain higher relative sensitivity coefficient γ and the better sensing properties of the gas sensor, the floriated structure of the central hole of HC-PCF is optimized. Numerical investigation shows that γ is high and relatively stable to changes of the diameter of air holes in a wide range of wavelength of 1.5-1.7μm, which is very beneficial for sensor fabrication. A lower confinement loss and the flatness are also exhibited with the HC-PCF. And the highest γ of 0.9998 of the floriated structure of the central hole can be obtained than the circular ones of 0.9435 at the wavelength of 1.56μm.

Citation Download Citation

Liangcheng Duan, Ying Lu, Congjing Hao, Baoqun Wu, and Jianqan Yao "Gas sensor based on hollow-core photonic crystal fibers with high relative sensitivity", Proc. SPIE 8924, Fourth Asia Pacific Optical Sensors Conference, 892425 (15 October 2013); https://doi.org/10.1117/12.2034247

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