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Proceedings Paper

Gas sensor based on hollow-core photonic crystal fibers with high relative sensitivity
Author(s): Liangcheng Duan; Ying Lu; Congjing Hao; Baoqun Wu; Jianqan Yao
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Paper 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.

Paper Details

Date Published: 15 October 2013
PDF: 4 pages
Proc. SPIE 8924, Fourth Asia Pacific Optical Sensors Conference, 892425 (15 October 2013); doi: 10.1117/12.2034247
Show Author Affiliations
Liangcheng Duan, Tianjin Univ. (China)
Ying Lu, Tianjin Univ. (China)
Congjing Hao, Tianjin Univ. (China)
Baoqun Wu, Tianjin Univ. (China)
Jianqan Yao, Tianjin Univ. (China)


Published in SPIE Proceedings Vol. 8924:
Fourth Asia Pacific Optical Sensors Conference
Minghong Yang; Dongning Wang; Yun-Jiang Rao, Editor(s)

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