PHASE CONJUGATION AT SBS OF PROFILED LASER PULSES

摘要

The calculations of the phase conjugation at the stimulated Brilloiun scattering (SBS) of the laser pulse specific for such powerful laser facilities as NIF, MEGAJOULE, ISKRA-6 are carried out. A computer code based on the most complete in literature physical and numerical model of non-steady-state SBS is applied for this purpose. Transient processes and an effect of Stokes field on laser one (the laser pump depletion) are included. The possibility is demonstrated of obtaining the profiled shape of Stokes pulse with temporal phase modulation needed for ICF experiments. Main attention is devoted to the possibility of obtaining of broad-band Stokes pulses with the temporal form suitable for the inertial confinement fusion (ICF) applications and to replacement of adaptive mirror in multi-pass scheme by SBS mirror.