Active Mirror Amplifier for High-Average Power

摘要

This work presents a concept and scaling considerations for a diode-pumped solid-state laser operating in the active mirror mode. The laser uses relatively thin gain medium with large aperture that is pressured-clamped onto a transparent substrate with an internal microchannel type heat exchanger. Pump radiation is injected through the transparent substrate into the back face of the gain medium. Effective reduction of transverse temperature gradients makes this laser suitable for operation at high-average power while delivering good beam quality.