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Stable 1.25 watts CW far infrared laser radiation at the 119 micron methanol lineFar-infrared CW radiation of 1.25 watts has been obtained at the 119 micron methanol line with a CO2 pump power of 125 watts, and the maximum frequency fluctuation of the free running laser is measured to be less than + or - 100 kHz per hour. Reflecting optics have been used, when possible, to minimize CO2 degradation, and the frequency stability is ensured by cooling the input and output couplers. The input and output assemblies within the lasing medium are enclosed to minimize the external effects on the cavity length and to eliminate the mechanical instabilities associated with the use of bellows. The vibrational bottle-neck is broken by cooling the resonator wall to 5 deg and adding He as the buffer gas.
Document ID
19870055412
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Farhoomand, Jam
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Pickett, Herbert M.
(California Institute of Technology Jet Propulsion Laboratory, Pasadena, United States)
Date Acquired
August 13, 2013
Publication Date
May 1, 1987
Publication Information
Publication: International Journal of Infrared and Millimeter Waves
Volume: 8
ISSN: 0195-9271
Subject Category
Lasers And Masers
Accession Number
87A42686
Distribution Limits
Public
Copyright
Other

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