Open AccessFrequency resolved optical gating characterization of sub-ps pulses from single-section InAs/InP quantum dash based mode-locked lasers
Author(s) -
Cosimo Calò,
H. Schmeckebier,
K. Merghem,
Ricardo Rosales,
F. Lelarge,
A. Martinez,
D. Bimberg,
A. Ramdane
Publication year - 2014
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.001742
Subject(s) - optics , materials science , pulse compression , chirp , laser , heterodyne (poetry) , ultrashort pulse , single mode optical fiber , optoelectronics , mode locking , physics , telecommunications , radar , computer science , acoustics
Mode-locking of single-section Fabry-Pérot InAs/InP edge emitting quantum dash based lasers at 1.56 µm under continuous wave operation is studied by second-harmonic generation frequency resolved optical gating. Self-starting pulses of a width down to 374 fs can be observed after external chirp compensation using standard single-mode fiber (SMF-28). Pulse compression using different lengths of SMF-28 and pulse shape as well as phase dependence on bias conditions are investigated. Consistency with stepped-heterodyne technique for advanced pulse characterization is shown.