title: 4.35 kW peak power femtosecond pulse mode-locked VECSEL for supercontinuum generation.
abstract: We report a passively mode-locked vertical external cavity surface emitting laser (VECSEL) producing 400 fs pulses with 4.35 kW peak power. The average output power was 3.3 W and the VECSEL had a repetition rate of 1.67 GHz at a center wavelength of 1013 nm. A near-antiresonant, substrate-removed, 10 quantum well (QW) gain structure designed to enable femtosecond pulse operation is used. A SESAM which uses fast carrier recombination at the semiconductor surface and the optical Stark effect enables passive mode-locking. When 1 W of the VECSEL output is launched into a 2 m long photonic crystal fiber (PCF) with a 2.2 µm core, a supercontinuum spanning 175 nm, with average power 0.5 W is produced.
authors: School of Physics and Astronomy, University of Southampton, Southampton, SO17 1BJ, UK. K.G.Wilcox@soton.ac.uk
authors: Keith G
authors: KG
authors: Wilcox
authors: Anne C
authors: AC
authors: Tropper
authors: Harvey E
authors: HE
authors: Beere
authors: David A
authors: DA
authors: Ritchie
authors: Bernardette
authors: B
authors: Kunert
authors: Bernd
authors: B
authors: Heinen
authors: Wolfgang
authors: W
authors: Stolz
mesh_terms: D004735:Energy Transfer; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers