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Opt Lett. 2013 Jul 1;38(13):2289-91. doi: 10.1364/OL.38.002289.

Mode-locked VECSEL emitting 5 ps pulses at 675 nm.

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  • 1Optoelectronics Research Centre, Tampere University of Technology, Korkeakoulunkatu 3, Tampere 33720, Finland.


A picosecond GaInP/AlGaInP/GaAs vertical external-cavity surface-emitting laser (VECSEL) at 675 nm is reported. The laser is mode-locked with a GaInP/AlGaInP/GaAs saturable absorber mirror and emitted ~5.1 ps pulses at a 973 MHz repetition rate and an average power of 45 mW. To our knowledge, this is the first demonstration of a passively mode-locked VECSEL emitting fundamental laser radiation at the visible part of the spectrum.

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