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Simple technique for sequential Q-switching of molecular lasers.A simple technique for sequentially Q-switching molecular lasers is discussed in which an optical scanner is used as an optical folding element in a laser cavity consisting of a stationary diffraction grating and partially reflecting mirror. Sequential Q-switching of a conventional CO2 laser is demonstrated in which over sixty-two transitions between 9.2 and 10.8 microns are observed. Rapid repetition rates (200 Hz) and narrow laser pulses (less than 5 microsec) allow conventional signal processing techniques to be used with this multiwavelength laser source which is a versatile tool for laser propagation studies, absorption spectroscopy, and gain measurements. Results of a preliminary experiment demonstrating the utility of measuring selective absorption of CO2 laser wavelengths by C2H4 are shown.
Document ID
19720051527
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Lucht, R. A.
Allario, F.
Jarrett, O., Jr.
(NASA Langley Research Center Hampton, Va., United States)
Date Acquired
August 6, 2013
Publication Date
July 1, 1972
Publication Information
Publication: Applied Optics
Volume: 11
Subject Category
Masers
Accession Number
72A35193
Distribution Limits
Public
Copyright
Other

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