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High Power CO-Overtone Laser

Bohn, W.L. and Eckel, Hans-Albert and Riede, W. and Walther, S. (2003) High Power CO-Overtone Laser. In: High-Power Laser Ablation IV, 4760, pp. 486-490. SPIE. High Power Laser Ablation IV, Taos,NM,USA, 21.-26. April 2002. ISBN 0-8194-4524-X.

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Abstract

A modified electron beam controlled pulsed CO_2 laser is used as a multi spectral multi purpose test bed in order to generate high power fundamental and first overtone laser transitions in CO. The revisited concept includes an all solid state power supply which provides a highly reproducible operation at pulse repetition frequencies of up to 100 Hz. The active gas mixture is recirculated in a closed loop and kept at near room temperature using conventional water cooling. Discrimination of the CO fundamental band is obtained by using specially coated dielectric mirrors and introducing additional intracavity diaphragms. Unprecedented laser pulse energies of 25 J are reported in the overtone transitions covering a spectral range between 2 µm and 3.5 µm. Further scaling of pulse energies is expected in the near future using larger diameter resonator mirrors.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2004,
Title:High Power CO-Overtone Laser
Authors:
AuthorsInstitution or Email of Authors
Bohn, W.L.UNSPECIFIED
Eckel, Hans-AlbertUNSPECIFIED
Riede, W.UNSPECIFIED
Walther, S.UNSPECIFIED
Date:2003
Journal or Publication Title:High-Power Laser Ablation IV
Volume:4760
Page Range:pp. 486-490
Editors:
EditorsEmail
Phipps, Claude R.UNSPECIFIED
Publisher:SPIE
Series Name:Proceedings of SPIE
ISBN:0-8194-4524-X
Status:Published
Keywords:CO overtone, pulsed gas lasers, electron beam controlled lasers, mid-IR lasers
Event Title:High Power Laser Ablation IV, Taos,NM,USA, 21.-26. April 2002
Organizer:SPIE
HGF - Research field:Energy
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Energy
DLR - Program:L - no assignement
DLR - Research theme (Project):L - Laser Research and Technology
Location: Stuttgart
Institutes and Institutions:Institute of Technical Physics
Deposited By: Dr.rer.nat. Hans-Albert Eckel
Deposited On:16 Sep 2005
Last Modified:29 Apr 2010 20:31

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