Design and performance of a Q switch Nd laser with 10j pulse emission in burst mode

Maurizio Garbi; S. Mezzetti; Gian Piero Banfi

doi:10.1117/12.20576

1 August 1990 Design and performance of a Q switch Nd laser with 10j pulse emission in burst mode

Maurizio Garbi, S. Mezzetti, Gian Piero Banfi

Proceedings Volume 1277, High-Power Solid State Lasers and Applications; (1990) https://doi.org/10.1117/12.20576
Event: The International Congress on Optical Science and Engineering, 1990, The Hague, Netherlands

Abstract

The paper presents the results and the criteria followed in the design of a solid state laser operating in bust mode. Specifically addressed for a Thomson scattering diagnostic, the laser delivers at 1 urn a burst of 10 shots, each of 10 J, 15 nsec and pratically diffraction limited. Main problems are thermal effect which can cause un unaccettable change of divergence during the bust. It will be show that the simple scheme of nocooling turns out feasible. Effects of doping level, choise of Nd hosts together with choises of discharge electronic will be considered. An optimum choise proved to be the YLF oscillator and preamplifier, followed by a double pass zig-zag phosphate slab. Near field and far field pattern show a good point and divergence stability. Roughly speaking, we can say that an "overall induced thermal lens" longer than 40 m for the 2 cm output beam has been achieved.

Citation Download Citation

Maurizio Garbi, S. Mezzetti, and Gian Piero Banfi "Design and performance of a Q switch Nd laser with 10j pulse emission in burst mode", Proc. SPIE 1277, High-Power Solid State Lasers and Applications, (1 August 1990); https://doi.org/10.1117/12.20576

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