Abstract

We report the first demonstration to our knowledge of passive mode locking in a diode-pumped Er3+ and Yb3+ codoped YAl3(BO3)4 laser operating in the 1.51.6μm spectral region. Low-loss GaInNAs quantum-well semiconductor saturable absorber mirrors are used for the initiation and stabilization of the ultrashort-pulse generation. Pulses as short as 4.8ps were generated at 1530nm with an average output power up to 280mW for 2W of absorbed pump power produced by a high-brightness tapered 980nm laser diode. Passive mode locking has also been demonstrated around 1555nm with typical average powers of around 100mW and pulse durations of 5.1ps.

© 2008 Optical Society of America

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