Vol. 2, issue 06, article # 17

Tyryshkin I. S., Ponomarev Yu. N., Tikhomirov B. A., Mogilnitskii B. S. Nd: YAG laser system with a passive Q switch designed for delivering high energy short pulses with small angular divergence. // Atmospheric and oceanic optics. 1989. V. 2. No. 06. P. 548-551.
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The paper presents the description of the laser system designed for delivering high power short pulses of radiation at 1,064mm. The system involves the Nd: YAG master oscillator and a two-stage amplifier. The LiF crystal with F2- colour centers is used in the master oscillator as a Q switch. This laser system can deliver 1,1 J per pulse of 2 ns duration at a pulse repetition frequency to 10 Hz. Angular beam width is about 0,48 mrad.