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Optica Publishing Group
  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 1991),
  • paper CFH5

Evolution of transverse coherence in copper vapor lasers

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Abstract

Copper vapor lasers (CVLs) are increasingly being used for applications such as pumping Ti. sapphire lasers1 and nonlinear second-harmonic and sum-frequency generation,2 which require both high power and low (diffraction limited) beam divergence. This can be achieved in an oscillator-amplifier or injection coupled oscillator (ICO) configuration3 where the small (~10 W) master oscillator operates as a low divergence source. For low divergence output, copper vapor lasers are usually fitted with a high-magnification edge-coupled confocal unstable resonator in which a collimated output with diffraction limited divergence builds up within the few round trips (~4) of each laser pulse.

© 1991 Optical Society of America

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