Atmospheric absorption effects in beam delivery for industrial CO lasers

Quisheng Cao; Howard J. Baker; Denis R. Hall

doi:10.1117/12.270242

Atmospheric absorption effects in beam delivery for industrial CO lasers

Quisheng Cao, Howard J. Baker, Denis R. Hall

School of Engineering & Physical Sciences

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

Abstract

Spectrally resolved atmospheric absorption has been investigated to determine the problems of long path beam delivery of high power industrial CO laser light for material processing. A dry gas purged beam path is found to be essential if the natural CO laser spectrum is used. However, an unpurged beam delivery system may be satisfactory over typical distances when the spectrum is modified to avoid coincidence with strong water lines by the use of an intra- cavity absorption section. ©2005 Copyright SPIE - The International Society for Optical Engineering.

Original language	English
Pages (from-to)	297-300
Number of pages	4
Journal	Proceedings of SPIE - the International Society for Optical Engineering
Volume	3092
DOIs	https://doi.org/10.1117/12.270242
Publication status	Published - 1997
Event	XI International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference - Edinburgh, United Kingdom Duration: 25 Aug 1996 → 25 Aug 1996

Keywords

Beam delivery system
CO laser
Water vapour IR absorption

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title = "Atmospheric absorption effects in beam delivery for industrial CO lasers",

abstract = "Spectrally resolved atmospheric absorption has been investigated to determine the problems of long path beam delivery of high power industrial CO laser light for material processing. A dry gas purged beam path is found to be essential if the natural CO laser spectrum is used. However, an unpurged beam delivery system may be satisfactory over typical distances when the spectrum is modified to avoid coincidence with strong water lines by the use of an intra- cavity absorption section. {\textcopyright}2005 Copyright SPIE - The International Society for Optical Engineering.",

keywords = "Beam delivery system, CO laser, Water vapour IR absorption",

author = "Quisheng Cao and Baker, {Howard J.} and Hall, {Denis R.}",

year = "1997",

doi = "10.1117/12.270242",

language = "English",

volume = "3092",

pages = "297--300",

journal = "Proceedings of SPIE - the International Society for Optical Engineering",

issn = "1996-756X",

publisher = "SPIE",

note = "XI International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference ; Conference date: 25-08-1996 Through 25-08-1996",

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TY - JOUR

T1 - Atmospheric absorption effects in beam delivery for industrial CO lasers

AU - Cao, Quisheng

AU - Baker, Howard J.

AU - Hall, Denis R.

PY - 1997

Y1 - 1997

N2 - Spectrally resolved atmospheric absorption has been investigated to determine the problems of long path beam delivery of high power industrial CO laser light for material processing. A dry gas purged beam path is found to be essential if the natural CO laser spectrum is used. However, an unpurged beam delivery system may be satisfactory over typical distances when the spectrum is modified to avoid coincidence with strong water lines by the use of an intra- cavity absorption section. ©2005 Copyright SPIE - The International Society for Optical Engineering.

AB - Spectrally resolved atmospheric absorption has been investigated to determine the problems of long path beam delivery of high power industrial CO laser light for material processing. A dry gas purged beam path is found to be essential if the natural CO laser spectrum is used. However, an unpurged beam delivery system may be satisfactory over typical distances when the spectrum is modified to avoid coincidence with strong water lines by the use of an intra- cavity absorption section. ©2005 Copyright SPIE - The International Society for Optical Engineering.

KW - Beam delivery system

KW - CO laser

KW - Water vapour IR absorption

U2 - 10.1117/12.270242

DO - 10.1117/12.270242

M3 - Article

VL - 3092

SP - 297

EP - 300

JO - Proceedings of SPIE - the International Society for Optical Engineering

JF - Proceedings of SPIE - the International Society for Optical Engineering

SN - 1996-756X

T2 - XI International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference

Y2 - 25 August 1996 through 25 August 1996

ER -