DIODE-PUMPED ACTIVE MIRROR AMPLIFIER FOR HIGH-AVERAGE POWER

摘要

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