Remote methane sensor using Tunable Diode Laser Spectroscopy (TDLS) via a 1W Raman Source

D.M. Mitchell; K. Duffin; W. Johnstone

doi:10.1117/12.835810

Remote methane sensor using Tunable Diode Laser Spectroscopy (TDLS) via a 1W Raman Source

D.M. Mitchell, K. Duffin, W. Johnstone

Electronic And Electrical Engineering

Research output: Contribution to conference › Paper

Abstract

We report a long-range near-IR methane sensor for inspection of natural gas collection, storage sites and pipeline networks. The principle is that a laser carrier beam is directed at the target surface across a test path and the backscatter from the surface is collected via a large Fresnel lens onto the photoreceiver. A Raman amplifier has been designed to amplify the TDLS optical signal generated by a 1650.95nm DFB laser diode to over 1W CW. Combining the high power output of the Raman amplifier and the highly sensitive TDLS technique, we may report 100ppm.m sensitivity at more than 100m by extrapolation.

Original language	English
DOIs	https://doi.org/10.1117/12.835810
Publication status	Published - Sept 2009
Event	20th International Conference on Optical Fibre Sensors - Edinburgh, United Kingdom Duration: 5 Oct 2009 → …

Conference

Conference	20th International Conference on Optical Fibre Sensors
Country/Territory	United Kingdom
City	Edinburgh
Period	5/10/09 → …

Keywords

optical fibre sensors
tunable diode laser spectroscopy
TDLS

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10.1117/12.835810

Cite this

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title = "Remote methane sensor using Tunable Diode Laser Spectroscopy (TDLS) via a 1W Raman Source",

abstract = "We report a long-range near-IR methane sensor for inspection of natural gas collection, storage sites and pipeline networks. The principle is that a laser carrier beam is directed at the target surface across a test path and the backscatter from the surface is collected via a large Fresnel lens onto the photoreceiver. A Raman amplifier has been designed to amplify the TDLS optical signal generated by a 1650.95nm DFB laser diode to over 1W CW. Combining the high power output of the Raman amplifier and the highly sensitive TDLS technique, we may report 100ppm.m sensitivity at more than 100m by extrapolation. ",

keywords = "optical fibre sensors , tunable diode laser spectroscopy, TDLS",

author = "D.M. Mitchell and K. Duffin and W. Johnstone",

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T1 - Remote methane sensor using Tunable Diode Laser Spectroscopy (TDLS) via a 1W Raman Source

AU - Mitchell, D.M.

AU - Duffin, K.

AU - Johnstone, W.

PY - 2009/9

Y1 - 2009/9

N2 - We report a long-range near-IR methane sensor for inspection of natural gas collection, storage sites and pipeline networks. The principle is that a laser carrier beam is directed at the target surface across a test path and the backscatter from the surface is collected via a large Fresnel lens onto the photoreceiver. A Raman amplifier has been designed to amplify the TDLS optical signal generated by a 1650.95nm DFB laser diode to over 1W CW. Combining the high power output of the Raman amplifier and the highly sensitive TDLS technique, we may report 100ppm.m sensitivity at more than 100m by extrapolation.

AB - We report a long-range near-IR methane sensor for inspection of natural gas collection, storage sites and pipeline networks. The principle is that a laser carrier beam is directed at the target surface across a test path and the backscatter from the surface is collected via a large Fresnel lens onto the photoreceiver. A Raman amplifier has been designed to amplify the TDLS optical signal generated by a 1650.95nm DFB laser diode to over 1W CW. Combining the high power output of the Raman amplifier and the highly sensitive TDLS technique, we may report 100ppm.m sensitivity at more than 100m by extrapolation.

KW - optical fibre sensors

KW - tunable diode laser spectroscopy

KW - TDLS

U2 - 10.1117/12.835810

DO - 10.1117/12.835810

M3 - Paper

T2 - 20th International Conference on Optical Fibre Sensors

Y2 - 5 October 2009

ER -

Remote methane sensor using Tunable Diode Laser Spectroscopy (TDLS) via a 1W Raman Source

Abstract

Conference

Keywords

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