Abstract

A high-power 880-nm diode-directly-pumped passively mode-locked 1342nm Nd:YVO4 laser was demonstrated with a semiconductor saturable absorber mirror (SESAM). The laser mode radii in the laser crystal and on the SESAM were optimized carefully using the ABCD matrix formalism. An average output power of 2.3W was obtained with a repetition rate of 76MHz and a pulse width of 29.2ps under an absorbed pump power of 12.1W, corresponding to an optical-optical efficiency of 19.0% and a slope efficiency of 23.9%, respectively.

© 2011 Optical Society of America

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