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Proceedings Paper

Fidelity fluctuation in SBS phase conjugation at high input energies
Author(s): C. Brent Dane; William A. Neuman; Lloyd A. Hackel
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Paper Abstract

The shot-to-shot phase fidelity of an SBS phase conjugator operated many times above threshold has been found to be very sensitive to the slope of the leading edge of the input pulse. For a pulse with a rising edge that is short relative to the acoustic lifetime of the SBS medium, strong random fluctuations in the fidelity of the wavefront reversal are observed. However, by tailoring the leading edge of the pulse relative to the acoustic response time of the medium, good phase reproduction can be achieved. No increase in shot-to-shot fidelity fluctuation was observed using a carbon tetrachloride SBS cell at input energies up to 100X threshold, resulting in reflectivities of 90%. Conclusions are made about the source of the observed random fluctuations which are supported both by experimental measurements and numerical modeling.

Paper Details

Date Published: 1 April 1992
PDF: 9 pages
Proc. SPIE 1626, Nonlinear Optics III, (1 April 1992); doi: 10.1117/12.58104
Show Author Affiliations
C. Brent Dane, Lawrence Livermore National Lab. (United States)
William A. Neuman, Lawrence Livermore National Lab. (United States)
Lloyd A. Hackel, Lawrence Livermore National Lab. (United States)

Published in SPIE Proceedings Vol. 1626:
Nonlinear Optics III
Robert A. Fisher; John F. Reintjes, Editor(s)

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