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High-power passively mode-locked tapered InAs/GaAs quantum-dot lasers

Nikitichev, DI; Ding, Y; Ruiz, M; Calligaro, M; Michel, N; Krakowski, M; Krestnikov, I; ... Rafailov, EU; + view all (2011) High-power passively mode-locked tapered InAs/GaAs quantum-dot lasers. Applied Physics B , 103 (3) 609 - 613. 10.1007/s00340-010-4290-5. Green open access

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Abstract

We report picosecond pulse generation with high peak power in the range of 3.6 W from monolithic passively mode-locked tapered quantum-dot laser diodes, exhibiting low divergence and good beam quality. These results were achieved using a gain-guided tapered laser geometry. The generation of picosecond pulses with high average power up to 209 mW directly from such tapered lasers is also demonstrated, corresponding to 14.2 pJ pulse energy (14.65 GHz repetition rate). A comparison between the mode-locking performance of these tapered lasers incorporating either five or ten layers of InAs/GaAs self-organized quantum dots in their active layer is also presented.

Type: Article
Title: High-power passively mode-locked tapered InAs/GaAs quantum-dot lasers
Open access status: An open access version is available from UCL Discovery
DOI: 10.1007/s00340-010-4290-5
Publisher version: http://dx.doi.org/10.1007/s00340-010-4290-5
Language: English
Additional information: The final publication is available at Springer via http://dx.doi.org/10.1007/s00340-010-4290-5.
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering
URI: https://discovery.ucl.ac.uk/id/eprint/1462809
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