Abstract

A diode-pumped, actively Q-switched 2.8μm fiber laser oscillator with an average output power of more than 12W has been realized through the use of a 35μm core erbium-doped ZBLAN fiber and an acousto-optic modulator; to our knowledge, this is the first 3μm pulsed fiber laser in the 10W class. Pulse energy up to 100μJ and pulse duration down to 90ns, corresponding to a peak power of 0.9kW, were achieved at a repetition rate of 120kHz.

© 2011 Optical Society of America

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