红宝石相位共轭激光器泵浦的KTP光学参量振荡器

KTP Optical Parametric Oscillator Pumped by Phase Conjugate Ruby Lasers

光参量振荡器的阈值与泵浦光的光束质量有极大的关系，为降低光学参量振荡器（ＯＰＯ）起振阈值，本实验将受激布里渊散射（ＳＢＳ）相位共轭效应引入光学参量振荡器的泵浦源中，以改善光束质量，使光学参量振荡器振荡阈值降低到原来的２５％～７％．

The threshold of optical parametric oscillator is critically relevant to the beam quality of pumping laser, the phase conjugate effect of stimulated Brillouin scattering is applied to the ruby pumping laser system of KTP optical parametric oscillator. The threshold was reduced to 25%￣7% of the original one in the experiment.