Abstract:
:Semiconductor III-V photonic crystal (PC) laser is regarded as a promising ultra-compact light source with unique advantages of ultralow energy consumption and small footprint for the next generation of Si-based on-chip optical interconnects. However, the significant material dissimilarities between III-V materials and Si are the fundamental roadblock for conventional monolithic III-V-on-silicon integration technology. Here, we demonstrate ultrasmall III-V PC membrane lasers monolithically grown on CMOS-compatible on-axis Si (001) substrates by using III-V quantum dots. The optically pumped InAs/GaAs quantum-dot PC lasers exhibit single-mode operation with an ultra-low threshold of ~0.6 μW and a large spontaneous emission coupling efficiency up to 18% under continuous-wave condition at room temperature. This work establishes a new route to form the basis of future monolithic light sources for high-density optical interconnects in future large-scale silicon electronic and photonic integrated circuits.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Zhou T,Tang M,Xiang G,Xiang B,Hark S,Martin M,Baron T,Pan S,Park JS,Liu Z,Chen S,Zhang Z,Liu Hdoi
10.1038/s41467-020-14736-9subject
Has Abstractpub_date
2020-02-20 00:00:00pages
977issue
1issn
2041-1723pii
10.1038/s41467-020-14736-9journal_volume
11pub_type
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