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Low-noise 1.3 μm InAs/GaAs quantum dot laser monolithically grown on silicon

Liao, M; Chen, S; Liu, Z; Wang, Y; Ponnampalam, L; Zhou, Z; Wu, J; ... Liu, H; + view all (2018) Low-noise 1.3 μm InAs/GaAs quantum dot laser monolithically grown on silicon. Photonics Research , 6 (11) pp. 1062-1066. 10.1364/PRJ.6.001062. Green open access

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Abstract

We report low-noise, high-performance single transverse mode 1.3 μm InAs/GaAs quantum dot lasers monolithically grown on silicon (Si) using molecular beam epitaxy. The fabricated narrow-ridge-waveguide Fabry–Perot (FP) lasers have achieved a room-temperature continuous-wave (CW) threshold current of 12.5 mA and high CW temperature tolerance up to 90°C. An ultra-low relative intensity noise of less than −150  dB/Hz is measured in the 4–16 GHz range. Using this low-noise Si-based laser, we then demonstrate 25.6 Gb/s data transmission over 13.5 km SMF-28. These low-cost FP laser devices are promising candidates to provide cost-effective solutions for use in uncooled Si photonics transmitters in inter/hyper data centers and metropolitan data links.

Type: Article
Title: Low-noise 1.3 μm InAs/GaAs quantum dot laser monolithically grown on silicon
Open access status: An open access version is available from UCL Discovery
DOI: 10.1364/PRJ.6.001062
Publisher version: https://doi.org/10.1364/PRJ.6.001062
Language: English
Additional information: Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License (http://creativecommons.org/licenses/by/4.0/). Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
UCL classification: 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 Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10057113
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