First bufferless 1.5 μm III-V lasers grown directly on silicon wafers in Si-photonics

(Hong Kong University of Science and Technology) Researchers from HKUST have reported the world's first 1.5 μm III-V lasers directly grown on the industry-standard 220 nm SOI (silicon-on-insulators) wafers without buffer, potentially paving an opening to the 'holy grail' for present silicon (Si-) photonics research.