Fast response microstructured optical fiber methane sensor with multiple side-openings

Y. L. Hoo; Shujing Liu; Hoi Lut Ho; Wei Jin

doi:10.1109/LPT.2009.2039016

Fast response microstructured optical fiber methane sensor with multiple side-openings

Y. L. Hoo, Shujing Liu, Hoi Lut Ho, Wei Jin

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

113 Citations (Scopus)

Abstract

We have demonstrated a fast response optical fiber methane sensor by use of a hollow-core photonic bandgap fiber with periodic microchannels fabricated by a femtosecond Ti : sapphire laser. A diffusion limited response time of ∼3 s and a sensitivity of ∼647 ppm have been achieved for a 7-cm sensing fiber with seven side-holes separated by 1 cm along the fiber. The side holes introduce very little loss and hence it would be practically possible to construct fiber gas sensors with long sensing length (up to a few tens of meters) to achieve highly sensitive distributed sensing without compromising the response time.

Original language	English
Article number	5373860
Pages (from-to)	296-298
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	22
Issue number	5
DOIs	https://doi.org/10.1109/LPT.2009.2039016
Publication status	Published - 1 Mar 2010

Keywords

Gas sensor
Hollow-core photonic bandgap fiber (hc-pbf)
Index terms-diffusion
Methane
Microstructured fiber (mf)

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

More information

10.1109/LPT.2009.2039016

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title = "Fast response microstructured optical fiber methane sensor with multiple side-openings",

abstract = "We have demonstrated a fast response optical fiber methane sensor by use of a hollow-core photonic bandgap fiber with periodic microchannels fabricated by a femtosecond Ti : sapphire laser. A diffusion limited response time of ∼3 s and a sensitivity of ∼647 ppm have been achieved for a 7-cm sensing fiber with seven side-holes separated by 1 cm along the fiber. The side holes introduce very little loss and hence it would be practically possible to construct fiber gas sensors with long sensing length (up to a few tens of meters) to achieve highly sensitive distributed sensing without compromising the response time.",

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AB - We have demonstrated a fast response optical fiber methane sensor by use of a hollow-core photonic bandgap fiber with periodic microchannels fabricated by a femtosecond Ti : sapphire laser. A diffusion limited response time of ∼3 s and a sensitivity of ∼647 ppm have been achieved for a 7-cm sensing fiber with seven side-holes separated by 1 cm along the fiber. The side holes introduce very little loss and hence it would be practically possible to construct fiber gas sensors with long sensing length (up to a few tens of meters) to achieve highly sensitive distributed sensing without compromising the response time.

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KW - Index terms-diffusion

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Fast response microstructured optical fiber methane sensor with multiple side-openings

Abstract

Keywords

ASJC Scopus subject areas

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