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Frequency stability and stabilization of a chemical laser. [HF/DF]

Journal Article · · IEEE J. Quant. Electron.; (United States)
 [1]; ;
  1. TRW Defense and Space Systems Group, Redondo Beach, CA
A low-power c-w hf/df chemical laser, designed to achieve high-frequency stability has been built. Measurements are reported which characterize the instantaneous spectral width of the laser output to less than one part in 10/sup 11/ (..delta nu.. < 1 kHz) and the variations in absolute frequency of this emission with time to four parts in 10/sup 10/ (..delta nu.. = +-20 kHz) per 0.1 ms. Two experiments to actively stabilize the laser frequency are reported. In one experiment the laser was locked to a high-finesse Fabry--Perot to five parts in 10/sup 9/ (..delta nu.. = +-250 kHz) for many minutes. In the other experiment one laser was locked to another using heterodyne beat spectroscopy to 1.7 parts in 10/sup 9/ (..delta nu.. = +-85 kHz). The stabilization experiments were limited by the feedback loops used.
OSTI ID:
6372924
Journal Information:
IEEE J. Quant. Electron.; (United States), Journal Name: IEEE J. Quant. Electron.; (United States) Vol. QE-14:1; ISSN IEJQA
Country of Publication:
United States
Language:
English

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