A. Desfarges et al., WAVE-FRONT RECONSTRUCTION WITH A FOURIER HOLOGRAM IN A PHASE-CONJUGATING MIRROR OSCILLATOR, Optics letters, 20(19), 1995, pp. 1940-1942
A laser profile consisting of 113 coupled Gaussian waves is obtained i
n a cw oscillator by use of a BaTiO3 crystal as both an amplifying med
ium and a phase-conjugating mirror. Mutual locking of Gaussian waves i
s performed by a pair of spatial filters. One of them is a high-resolu
tion holographic component; the other is an opaque screen with identic
al circular apertures. (C) 1995 Optical Society of America