Abstract

InGaAs quantum wells and a Bragg mirror structure are grown on a GaAs substrate to simultaneously serve as a low-loss saturable absorber and an output coupler for highly efficient Q switching of a diode-pumped Nd:YAG laser operating at 946  nm. With an incident pump power of 9.2 W, the laser produces pulses of 38   ns duration with average pulse energy of as much as 20   μJ at a pulse repetition rate of 55   kHz.

© 2007 Optical Society of America

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