17 April 2006 47 fs in diode-pumped Yb:CaGdAlO4
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The first experimental demonstration of a diode-pumped passively mode-locked femtosecond laser based on an Yb3+:CaGdAlO4 single crystal is reported here. Yb3+:CaGdAlO4 (Yb:CALGO) seems to be one of the most interesting since it both exhibits one of the broadest and smoothest emission spectrum (from 990 to 1080 nm) among ytterbium-doped materials and a relatively high thermal conductivity. The oscillator is directly diode-pumped by a high brightness 5-W fiber coupled laser diode and pulses are produced using a SESAM. It allows the production of pulses as short as 47 fs at 1050 nm, that is to our knowledge, the shortest laser pulses ever obtained from an oscillator based on Yb3+-doped bulk materials. The average power was 38 mW and the repetition rate 109 MHz.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Bruno Viana, Johan Petit, Philippe Goldner, Yoann Zaouter, Julien Didierjean, Frédéric Druon, François Balembois, and Patrick Georges "47 fs in diode-pumped Yb:CaGdAlO4", Proc. SPIE 6190, Solid State Lasers and Amplifiers II, 619001 (17 April 2006); doi: 10.1117/12.662055; https://doi.org/10.1117/12.662055


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