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Numerical study of phase conjugation in stimulated backscatter with pump depletion

Technical Report ·
OSTI ID:6876698
Two dimensional numerical simulations are presented of phase conjugation in stimulated backscatter of a focused aberrated beam, including the effects of pump depletion. In all cases, pump depletion significantly improved the conjugation fidelity H. As expected, the far field distribution of light scattered back through the aberrator exhibited a prominent axial spike closely matching that of the incident beam; however, the near field distribution had large and rapid spatial inhomogeneities, even for H approx. = 90%. In spite of such structure, the backscatter was able to reproduce a rough image of large scale modulation in the incident beam.
Research Organization:
Naval Research Lab., Washington, DC (USA)
DOE Contract Number:
AI01-77DP40042
OSTI ID:
6876698
Report Number(s):
NRL-MR-4890; ON: DE83000894
Country of Publication:
United States
Language:
English