Abstract

Photorefractive BaTiO3:Ce was used to combine coherently a signal beam and two amplified pump beams at λ=678  nm. The master laser beam was split and then amplified in two semiconductor laser amplifiers with gain of as much as 6. The amplifiers were made from quantum-well laser chips by use of antireflection coating. 40% of the power could be transferred to the signal beam without transferring the phase distortions of the pump beams.

© 1997 Optical Society of America

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