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    III-V Lasers Grown on Silicon Wafers Could Advance Silicon Photonics

    Article obtained from Photonics RSS Feed.

    Researchers from the Hong Kong University of Science and Technology (HKUST) have directly grown 1.5-μm III-V lasers on industry-standard 220-nm silicon-on-insulators (SOI) wafers without buffer. This work could advance the use of III-V light sources with silicon (Si)-based photonic devices.

    In conventional approaches to integrating III-V lasers on Si, III-V buffers up to a few μm thick are applied to reduce the defect densities. The thickness of these buffers can make the interface between the III-V lasers and the Si-based waveguides less efficient. The HKUST team devised a growth scheme that eliminates the need for thick III-V buffers to allow more efficient light coupling into the Si-waveguides.

    The group led by…

    Mar, 09 2020 |

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