title: 490 fs pulse generation from a passive C-band AlGaInAs/InP quantum well mode-locked laser.
abstract: We report femtosecond pulses from a passive C-band two-section AlGaInAs/InP mode-locked laser with a monolithically integrated passive waveguide made by quantum well intermixing. Without any external pulse compression, Lorentzian pulses are generated at a repetition frequency of ~38 GHz with 490 fs pulse duration, which is, to the best of our knowledge, the shortest pulse from any directly electrically pumped quantum well semiconductor mode-locked laser. The mode-locking range is relatively large and the ultranarrow pulse width is very stable over a broad range of driving conditions.
authors.affiliation: School of Engineering, University of Glasgow, Glasgow, G12 8LT UK. lianping.hou@glasgow.ac.uk
authors.forename: Lianping
authors.initials: L
authors.lastname: Hou
authors.forename: Mohsin
authors.initials: M
authors.lastname: Haji
authors.forename: John H
authors.initials: JH
authors.lastname: Marsh
authors.forename: A Catrina
authors.initials: AC
authors.lastname: Bryce