Remote tuneable diode laser spectroscopy (TDLS) via a 1W Raman source

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

doi:10.1117/12.820567

Remote tuneable diode laser spectroscopy (TDLS) via a 1W Raman source

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

Electronic And Electrical Engineering

Research output: Contribution to journal › Article

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 detected in a large Fresnel lens on the sensor. 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.

Original language	English
Pages (from-to)	73560Y
Journal	Proceedings of SPIE the International Society for Optical Engineering
Volume	7356
DOIs	https://doi.org/10.1117/12.820567
Publication status	Published - 18 May 2009

Keywords

natural gas collection
storage sites
pipeline networks
laser carrier beam
surface
Fresnel lens
sensor
Raman
optical signal
Raman amplifier
diode laser spectroscopy

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10.1117/12.820567

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title = "Remote tuneable 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 detected in a large Fresnel lens on the sensor. 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.",

keywords = "natural gas collection, storage sites, pipeline networks, laser carrier beam, surface, Fresnel lens, sensor, Raman, optical signal, Raman amplifier, diode laser spectroscopy",

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

year = "2009",

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doi = "10.1117/12.820567",

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T1 - Remote tuneable diode laser spectroscopy (TDLS) via a 1W Raman source

AU - Mitchell, D.M.

AU - Duffin, K.

AU - Johnstone, W.

PY - 2009/5/18

Y1 - 2009/5/18

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 detected in a large Fresnel lens on the sensor. 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.

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 detected in a large Fresnel lens on the sensor. 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.

KW - natural gas collection

KW - storage sites

KW - pipeline networks

KW - laser carrier beam

KW - surface

KW - Fresnel lens

KW - sensor

KW - Raman

KW - optical signal

KW - Raman amplifier

KW - diode laser spectroscopy

UR - http://dx.doi.org/10.1117/12.820567

U2 - 10.1117/12.820567

DO - 10.1117/12.820567

M3 - Article

VL - 7356

SP - 73560Y

JO - Proceedings of SPIE

JF - Proceedings of SPIE

SN - 0277-786X

ER -

Remote tuneable diode laser spectroscopy (TDLS) via a 1W Raman source

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