论文信息 - Variable reflectivity mirror unstable resonator with deformable mirror thermal compensation

Variable reflectivity mirror unstable resonator with deformable mirror thermal compensation

Abstract For thermal lensing compensation of a Nd:YAG rod, placed in different positive-branch unstable resonators with super-Gaussian reflectivity profile of the output mirror, a deformable thin glass plate was used as the rear mirror. Unstable resonators with magnifications of M = 1.5 and M = 1.8 were designed for 0.8 mm·mrad value of the beam quality. For unloaded resonators the output energies of a laser working at 10 Hz repetition rate and pump energies up to 50 J per pulse were close to those obtained for 1 Hz repetition rate.

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