Optically pumped 1.3 μm room-temperature InAs quantum-dot micro-disk lasers directly grown on (001) silicon

Yating Wan, Qiang Li, Alan Y. Liu, Arthur C. Gossard, John E. Bowers, Evelyn L. Hu, Kei May Lau

Research output: Contribution to journalArticlepeer-review

110 Scopus citations


Direct integration of high-performance laser diodes on silicon will dramatically transform the world of photonics, expediting the progress toward low-cost and compact photonic integrated circuits (PICs) on themainstreamsilicon platform. Here, we report, to the best of our knowledge, the first 1.3 μm room-temperature continuous-wave InAs quantumdot micro-disk lasers epitaxially grown on industrialcompatible Si (001) substrates without offcut. The lasing threshold is as low as hundreds of microwatts, similar to the thresholds of identical lasers grown on a GaAs substrate. The heteroepitaxial structure employed here does not require the use of an absorptive germanium buffer and/or dislocation filter layers, both of which impede the efficient coupling of light from the laser active regions to silicon waveguides. This allows for full compatibility with the extensive silicon-oninsulator (SOI) technology. The large-area virtual GaAs (on Si) substrates can be directly adopted in various mature in-plane laser configurations, both optically and electrically. Thus, this demonstration represents a major advancement toward the commercial success of fully integrated silicon photonics.
Original languageEnglish (US)
Pages (from-to)1664-1667
Number of pages4
Issue number7
StatePublished - Apr 1 2016
Externally publishedYes

Bibliographical note

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

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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