All-fiber gas sensor with intracavity photothermal spectroscopy

Yan Zhao; Wei Jin; Yuechuan Lin; Fan Yang; Hoi Lut Ho

doi:10.1364/OL.43.001566

All-fiber gas sensor with intracavity photothermal spectroscopy

Yan Zhao
, Wei Jin
, Yuechuan Lin
, Fan Yang
, Hoi Lut Ho

The Hong Kong Polytechnic University

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

26 Citations (Scopus)

Abstract

We present an all-fiber intracavity photothermal (IC-PT) spectroscopic gas sensor with a hollow-core photonic bandgap fiber (HC-PBF) gas cell. The gas cell is placed inside a fiber-ring laser cavity to achieve higher laser light intensity in the hollow core and hence higher PT modulation signal. An experiment with a 0.62-m-long HC-PBF gas cell demonstrated a noise equivalent concentration of 176 ppb acetylene. Theoretical modeling shows that the IC-PT sensor has the potential of achieving sub-ppb (parts-per-billion) acetylene detection sensitivity.

Original language	English
Pages (from-to)	1566-1569
Number of pages	4
Journal	Optics Letters
Volume	43
Issue number	7
DOIs	https://doi.org/10.1364/OL.43.001566
Publication status	Published - 1 Apr 2018

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1364/OL.43.001566

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title = "All-fiber gas sensor with intracavity photothermal spectroscopy",

abstract = "We present an all-fiber intracavity photothermal (IC-PT) spectroscopic gas sensor with a hollow-core photonic bandgap fiber (HC-PBF) gas cell. The gas cell is placed inside a fiber-ring laser cavity to achieve higher laser light intensity in the hollow core and hence higher PT modulation signal. An experiment with a 0.62-m-long HC-PBF gas cell demonstrated a noise equivalent concentration of 176 ppb acetylene. Theoretical modeling shows that the IC-PT sensor has the potential of achieving sub-ppb (parts-per-billion) acetylene detection sensitivity.",

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AU - Zhao, Yan

AU - Jin, Wei

AU - Lin, Yuechuan

AU - Yang, Fan

AU - Ho, Hoi Lut

PY - 2018/4/1

Y1 - 2018/4/1

N2 - We present an all-fiber intracavity photothermal (IC-PT) spectroscopic gas sensor with a hollow-core photonic bandgap fiber (HC-PBF) gas cell. The gas cell is placed inside a fiber-ring laser cavity to achieve higher laser light intensity in the hollow core and hence higher PT modulation signal. An experiment with a 0.62-m-long HC-PBF gas cell demonstrated a noise equivalent concentration of 176 ppb acetylene. Theoretical modeling shows that the IC-PT sensor has the potential of achieving sub-ppb (parts-per-billion) acetylene detection sensitivity.

AB - We present an all-fiber intracavity photothermal (IC-PT) spectroscopic gas sensor with a hollow-core photonic bandgap fiber (HC-PBF) gas cell. The gas cell is placed inside a fiber-ring laser cavity to achieve higher laser light intensity in the hollow core and hence higher PT modulation signal. An experiment with a 0.62-m-long HC-PBF gas cell demonstrated a noise equivalent concentration of 176 ppb acetylene. Theoretical modeling shows that the IC-PT sensor has the potential of achieving sub-ppb (parts-per-billion) acetylene detection sensitivity.

UR - https://www.scopus.com/pages/publications/85044839250

U2 - 10.1364/OL.43.001566

DO - 10.1364/OL.43.001566

M3 - Journal article

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JO - Optics Letters

JF - Optics Letters

IS - 7

ER -

All-fiber gas sensor with intracavity photothermal spectroscopy

Abstract

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