Injection seeded Nd:YAG ring laser generating 200 mJ Q-switched pulses

摘要

This paper discusses a novel approach in a seeded Q-switched laser capable in oscillating with no mutual adjustment between cavity resonances and seed emission frequency. The oscillation pulse of such a laser is easy to time-synchronize to external processes. Oscillation of an injection seeded Q-switched Nd:YAG laser module is demonstrated that can laser the pulses from several nsec to about 20 nsec long with the energy level higher than 100 mJ from the slave oscillator and in excess of 200 mJ after a single stage amplification.