Phase conjugate master oscillator-power amplifier using BaTiO3 and AlGaAs semiconductor diode lasers

Abstract
A double pass phase conjugate master oscillator‐power amplifier has been demonstrated at 820 nm using AlGaAs gain elements and BaTiO3 in a self‐pumped ring configuration. Single frequency operation with diffraction‐limited output beam quality was achieved at output powers in excess of 50 mW cw.