Fidelity fluctuation in SBS phase conjugation at high input energies

C. Brent Dane; William A. Neuman; Lloyd A. Hackel

doi:10.1117/12.58104

1 April 1992 Fidelity fluctuation in SBS phase conjugation at high input energies

C. Brent Dane, William A. Neuman, Lloyd A. Hackel

Proceedings Volume 1626, Nonlinear Optics III; (1992) https://doi.org/10.1117/12.58104
Event: OE/LASE '92, 1992, Los Angeles, CA, United States

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.

Citation Download Citation

C. Brent Dane, William A. Neuman, and Lloyd A. Hackel "Fidelity fluctuation in SBS phase conjugation at high input energies", Proc. SPIE 1626, Nonlinear Optics III, (1 April 1992); https://doi.org/10.1117/12.58104

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