Abstract

We present a diode-pumped regenerative amplifier based on an Yb:CaF2 crystal optimized to produce short pulses for various repetition rates ranging from 100Hz to 10kHz. The shortest pulse duration generated is 178fs, and the corresponding energy is 1.4mJ before compression (620μJ after), at a repetition rate of 500Hz for 16W of pump power. The bandwidth is 10nm centered at 1040nm. Higher repetition rate regimes have also been explored, allowing an optical-to-optical efficiency up to 10% at a high repetition rate.

© 2010 Optical Society of America

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