On-Chip Detection from Directly Modulated Quantum Dot Microring Lasers on Si

Yating Wan, Daehwan Jung, Daisuke Inoue, Justin C. Norman, Chen Shang, Arthur C. Cossard, John E. Bowers

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations


We present on-chip detection from directly modulated microring quantum-dot (QD) lasers grown on exact (001) Si. Static and dynamic properties of the QD-based microring lasers and microdetectors have been investigated. The ring lasers exhibit high temperature stabilities up to 100°C, low thresholds down to sub milliamp, and a wide 3 dB bandwidth up to 6.5 GHz. The microdetectors show small dark currents down to 0.2 nA and eye openings up to 10 Gbit/s with non-return-to-zero signals. Light emission from the microring lasers can be probed via the changes in the photocurrent of the microdetectors, realizing on-chip QD laser and detector system on Si by epitaxy. Furthermore, demonstrated downscaling abilities of the QD based devices promise improved integration density for photonic integrated circuits (PIC).
Original languageEnglish (US)
Title of host publicationProgress in Electromagnetics Research Symposium
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages5
ISBN (Print)9784885523151
StatePublished - Dec 31 2018
Externally publishedYes

Bibliographical note

Generated from Scopus record by KAUST IRTS on 2023-09-18


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