Wave-front reconstruction with a Fourier hologram in a phase-conjugating mirror oscillator

Agnès Desfarges-Berthelemot (1) , Bernard Colombeau (1) , Michel Vampouille (1) , Vincent Kermène (1) , Claude Froehly (1)

1 IRCOM - Institut de Recherche en Communications Optiques et Microondes

A laser profile consisting of 113 coupled Gaussian waves is obtained in a cw oscillator by use of a BaTiO3 crystal as both an amplifying medium and a phase-conjugating mirror. Mutual locking of Gaussian waves is performed by a pair of spatial filters. One of them is a high-resolution holographic component; the other is an opaque screen with identical circular apertures.

Domaines: Sciences de l'ingénieur [physics]; Optique / photonique

Agnès Desfarges-Berthelemot, Bernard Colombeau, Michel Vampouille, Vincent Kermène, Claude Froehly. Wave-front reconstruction with a Fourier hologram in a phase-conjugating mirror oscillator. Optics Letters, 1995, 20, ⟨10.1364/OL.20.001940⟩. ⟨hal-01278136⟩