10 GHz passively mode-locked external-cavity semiconductor laser with 1.4 W average output power

Aschwanden, A.; Lorenser, D.; Unold, H. J.; Paschotta, R.; Gini, E.; Keller, U.
March 2005
Applied Physics Letters;3/28/2005, Vol. 86 Issue 13, p131102
Academic Journal
We present a 10 GHz passively mode-locked vertical external-cavity surface-emitting semiconductor laser (VECSEL) with 1.4 W average output power in 6.1 ps pulses. The output features a very good pulse quality with a time–bandwidth product of 0.42 in a nearly diffraction-limited beam. This demonstrates that passively mode-locked VECSELs are suitable for generating high powers in high-repetition-rate pulse trains.


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