Ontology type: schema:ScholarlyArticle Open Access: True
2018-07-02
AUTHORSHao Hu, Francesco Da Ros, Minhao Pu, Feihong Ye, Kasper Ingerslev, Edson Porto da Silva, Md. Nooruzzaman, Yoshimichi Amma, Yusuke Sasaki, Takayuki Mizuno, Yutaka Miyamoto, Luisa Ottaviano, Elizaveta Semenova, Pengyu Guan, Darko Zibar, Michael Galili, Kresten Yvind, Toshio Morioka, Leif K. Oxenløwe
ABSTRACTThe Internet today transmits hundreds of terabits per second, consumes 9% of all electricity worldwide and grows by 20–30% per year1,2. To support capacity demand, massively parallel communication links are installed, not scaling favourably concerning energy consumption. A single frequency comb source may substitute many parallel lasers and improve system energy-efficiency3,4. We present a frequency comb realized by a non-resonant aluminium-gallium-arsenide-on-insulator (AlGaAsOI) nanowaveguide with 66% pump-to-comb conversion efficiency, which is significantly higher than state-of-the-art resonant comb sources. This enables unprecedented high data-rate transmission for chip-based sources, demonstrated using a single-mode 30-core fibre. We show that our frequency comb can carry 661 Tbit s–1 of data, equivalent to more than the total Internet traffic today. The comb is obtained by seeding the AlGaAsOI chip with 10-GHz picosecond pulses at a low pump power (85 mW), and this scheme is robust to temperature changes, is energy efficient and facilitates future integration with on-chip lasers or amplifiers5,6. More... »
PAGES469-473
http://scigraph.springernature.com/pub.10.1038/s41566-018-0205-5
DOIhttp://dx.doi.org/10.1038/s41566-018-0205-5
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