Abstract

Picosecond pulses, tunable in the wavelength range of 1.2–4.5 μm, are generated at a 100-MHz repetition rate in KTiOPO4 by difference-frequency mixing the output of a synchronously mode-locked dye laser and a Nd:YLF laser that pumps the dye laser. The typical average infrared output power is in the milliwatt range, which represents an improvement of several orders of magnitude over previously reported results using other nonlinear materials in a tunability make it an attractive alternative for mode-locked color-center lasers.

© 1989 Optical Society of America

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