10-GHz 1.59-μm quantum dash passively mode-locked two-section lasers

Publication: Research - peer-reviewConference article – Annual report year: 2011

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This paper reports the fabrication and the characterisation of a 10 GHz two-section passively mode-locked quantum dash laser emitting at 1.59 μm. The potential of the device's mode-locking is investigated through an analytical model taking into account both the material parameters and the laser geometry. Results show that the combination of a small absorbing section coupled to a high absorption coefficient can lead to an efficient mode-locking. Characterisation shows mode-locking operation though output pulses are found to be strongly chirped. Noise measurements demonstrate that the single side band phase noise does not exceed -80 dBc/Hz at 100 kHz offset leading to an average timing jitter as low as 800 fs. As compared to single QW lasers these results constitute a significant improvement and are of first importance for applications in optical telecommunications.
Original languageEnglish
JournalProceedings of SPIE--the international society for optical engineering
Publication date2010
Volume7720
Pages77201A
ISSN0277-786X
DOIs
StatePublished

Conference

ConferenceSemiconductor Lasers and Laser Dynamics
Number4
CityBrussels, Belgium
Period01/01/10 → …
CitationsWeb of Science® Times Cited: 0

Keywords

  • Mode-locking, Ultra-fast lasers, Quantum dots/dashes
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