Abstract

Crystalline fiberlike diode-pumped laser systems offer a convenient way to obtain compact, robust, and efficient operation whenever long active media are required. One of these cases is the diode-pumped Er3+:YAG laser emitting at 1.6μm, where long crystals are needed to avoid the upconversion processes. By resonantly pumping the I13/24 level around 1.53μm, and by confining the pump radiation into the crystal by total internal reflection, a maximum output power of 14.5W in cw mode is reached when pumped with ~40 W of absorbed power. In Q-switching mode, pulse energies of more than 8mJ were obtained at a repetition rate of 90Hz, limited by coating damage.

© 2010 Optical Society of America

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