Towards high sensitivity gas detection with hollow-core photonic bandgap fibers | Zendy

Fan Yang | Zendy; Wei Jin | Zendy; Yingchun Cao | Zendy; S. L. Ho | Zendy; Yiping Wang | Zendy

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Towards high sensitivity gas detection with hollow-core photonic bandgap fibers

Author(s) -

Fan Yang,

Wei Jin,

Yingchun Cao,

S. L. Ho,

Yiping Wang

Publication year - 2014

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.22.024894

Subject(s) - materials science , optics , photonic crystal fiber , modulation (music) , sensitivity (control systems) , photonic crystal , optical fiber , interference (communication) , optoelectronics , photonics , core (optical fiber) , wavelength , electronic engineering , telecommunications , physics , acoustics , computer science , channel (broadcasting) , engineering

This paper investigates the effect of modal interference on the performance of hollow-core photonic bandgap fiber (HC-PBF) gas sensors. By optimizing mode launch, using proper length of sensing HC-PBF, and applying proper wavelength modulation in combination with lock-in detection, as well as appropriate digital signal processing, an estimated lower detection limit of less than 1 part-per-million by volume (ppmv) acetylene is achieved.

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