Oxygen measurement by multimode diode lasers employing gas correlation spectroscopy

Xiutao Lou; Gabriel Somesfalean; Bin Chen; Zhiguo Zhang

doi:10.1364/AO.48.000990

Oxygen measurement by multimode diode lasers employing gas correlation spectroscopy

Xiutao Lou, Gabriel Somesfalean, Bin Chen, Zhiguo Zhang

Atomic Physics

Research output: Contribution to journal › Article › peer-review

Abstract

Multimode diode laser (MDL)-based correlation spectroscopy (COSPEC) was used to measure oxygen in ambient air, thereby employing a diode laser (DL) having an emission spectrum that overlaps the oxygen absorption lines of the A band. A sensitivity of 700 ppm m was achieved with good accuracy (2%) and linearity (R-2 = 0.999). For comparison, measurements of ambient oxygen were also performed by tunable DL absorption spectroscopy (TDLAS) technique employing a vertical cavity surface emitting laser. We demonstrate that, despite slightly degraded sensitivity, the MDL-based COSPEC-based oxygen sensor has the advantages of high stability, low cost, ease-of-use, and relaxed requirements in component selection and instrument buildup compared with the TDLAS-based instrument. (C) 2009 Optical Society of America

Original language	English
Pages (from-to)	990-997
Journal	Applied Optics
Volume	48
Issue number	5
DOIs	https://doi.org/10.1364/AO.48.000990
Publication status	Published - 2009

Subject classification (UKÄ)

Atom and Molecular Physics and Optics

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10.1364/AO.48.000990

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title = "Oxygen measurement by multimode diode lasers employing gas correlation spectroscopy",

abstract = "Multimode diode laser (MDL)-based correlation spectroscopy (COSPEC) was used to measure oxygen in ambient air, thereby employing a diode laser (DL) having an emission spectrum that overlaps the oxygen absorption lines of the A band. A sensitivity of 700 ppm m was achieved with good accuracy (2%) and linearity (R-2 = 0.999). For comparison, measurements of ambient oxygen were also performed by tunable DL absorption spectroscopy (TDLAS) technique employing a vertical cavity surface emitting laser. We demonstrate that, despite slightly degraded sensitivity, the MDL-based COSPEC-based oxygen sensor has the advantages of high stability, low cost, ease-of-use, and relaxed requirements in component selection and instrument buildup compared with the TDLAS-based instrument. (C) 2009 Optical Society of America",

author = "Xiutao Lou and Gabriel Somesfalean and Bin Chen and Zhiguo Zhang",

year = "2009",

doi = "10.1364/AO.48.000990",

language = "English",

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pages = "990--997",

journal = "Applied Optics",

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publisher = "Optical Society of America",

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T1 - Oxygen measurement by multimode diode lasers employing gas correlation spectroscopy

AU - Lou, Xiutao

AU - Somesfalean, Gabriel

AU - Chen, Bin

AU - Zhang, Zhiguo

PY - 2009

Y1 - 2009

N2 - Multimode diode laser (MDL)-based correlation spectroscopy (COSPEC) was used to measure oxygen in ambient air, thereby employing a diode laser (DL) having an emission spectrum that overlaps the oxygen absorption lines of the A band. A sensitivity of 700 ppm m was achieved with good accuracy (2%) and linearity (R-2 = 0.999). For comparison, measurements of ambient oxygen were also performed by tunable DL absorption spectroscopy (TDLAS) technique employing a vertical cavity surface emitting laser. We demonstrate that, despite slightly degraded sensitivity, the MDL-based COSPEC-based oxygen sensor has the advantages of high stability, low cost, ease-of-use, and relaxed requirements in component selection and instrument buildup compared with the TDLAS-based instrument. (C) 2009 Optical Society of America

AB - Multimode diode laser (MDL)-based correlation spectroscopy (COSPEC) was used to measure oxygen in ambient air, thereby employing a diode laser (DL) having an emission spectrum that overlaps the oxygen absorption lines of the A band. A sensitivity of 700 ppm m was achieved with good accuracy (2%) and linearity (R-2 = 0.999). For comparison, measurements of ambient oxygen were also performed by tunable DL absorption spectroscopy (TDLAS) technique employing a vertical cavity surface emitting laser. We demonstrate that, despite slightly degraded sensitivity, the MDL-based COSPEC-based oxygen sensor has the advantages of high stability, low cost, ease-of-use, and relaxed requirements in component selection and instrument buildup compared with the TDLAS-based instrument. (C) 2009 Optical Society of America

U2 - 10.1364/AO.48.000990

DO - 10.1364/AO.48.000990

M3 - Article

SN - 2155-3165

VL - 48

SP - 990

EP - 997

JO - Applied Optics

JF - Applied Optics

IS - 5

ER -

Oxygen measurement by multimode diode lasers employing gas correlation spectroscopy

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