Cr2+:ZnSe master oscillator/power amplifier for improved power scaling

We demonstrate a high-power (7.5 W) polycrystalline Cr2+:ZnSe CW laser system utilizing an astigmaticallycompensated Kogelnik-configuration master oscillator and a normal-incidence slab power amplifier demonstrating over 2X gain. Experimental results are compared with an improved theoretical model of amplification in this type of system.

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