Abstract

A high-efficiency diode-pumped Q-switched Nd:YAG oscillator designed for future spaceborne applications has been demonstrated and characterized. The laser is based on a side-pumped slab geometry and uses an unstable resonator with a radially variable-reflectivity output coupler. The laser provides an output pulse energy of 100  mJ at a 100-Hz repetition rate, with a near-diffraction-limited beam and an overall electrical–optical efficiency exceeding 6%.

© 1997 Optical Society of America

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