Continuous-wave optically pumped 1.55 μm InAs/InAlGaAs quantum dot microdisk lasers epitaxially grown on silicon

Shi, Bei, Zhu, Si, Li, Qiang ORCID: https://orcid.org/0000-0002-5257-7704, Wan, Yating, Hu, Evelyn L. and Lau, Kei May 2018. Continuous-wave optically pumped 1.55 μm InAs/InAlGaAs quantum dot microdisk lasers epitaxially grown on silicon. ACS Photonics 4 (2) , pp. 204-210. 10.1021/acsphotonics.6b00731

Full text not available from this repository.

Abstract

Monolithic integration of high-performance semiconductor lasers on silicon enables wafer-scale optical interconnects within photonic integrated circuits on a silicon manufacturing platform. III–V quantum dot (QD) lasers on silicon stand out for their better device performances and reliability. QD lasers grown on III–V substrates have been integrated by wafer-bonding techniques with high quality. Direct growth of QD lasers on silicon offers an alluring alternative, using widely available large-area silicon substrates. However, to date, notable achievements have been reported only in InAs/GaAs lasers emitting at 1.3 μm, while 1.55 μm InAs/InP QD lasers on silicon remain in uncharted territory. Here we demonstrate the first 1.55 μm band InAs/InAlGaAs quantum dot microdisk lasers epitaxially grown on (001) silicon substrates. The lasing threshold for the seven-layer quantum dot microdisk laser at liquid-helium temperature is 1.6 mW under continuous optical pumping. The observed lasing is attributed to a unique combination of the high-quality QDs, small mode volume, and smooth sidewall of the microdisk structure and a well-developed InP buffer incorporating quantum dots as dislocation filters. These results thus mark a major step toward an integrated III–V-on-silicon photonics platform.

Item Type:	Article
Date Type:	Published Online
Status:	Published
Schools:	Physics and Astronomy
Publisher:	American Chemical Society
ISSN:	2330-4022
Date of First Compliant Deposit:	29 May 2018
Date of Acceptance:	9 January 2017
Last Modified:	23 Oct 2022 13:49
URI:	https://orca.cardiff.ac.uk/id/eprint/111836

Citation Data

Cited 57 times in Scopus. View in Scopus. Powered By Scopus® Data

Actions (repository staff only)

Edit Item