A first for single-section QDML lasers on Si

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The first single-section quantum dot mode-locked laser directly grown on a CMOS-compatible silicon substrate has been produced by researchers in the US. Their achievement could open the door to much lower complexity, cheaper laser sources for future large-scale silicon photonic integrated circuits.

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Front from the left: Arthur C. Gossard and John E. Bowers, back from the left: Daehwan Jung, Songtao Liu and Justin C. Norman