12 February 2016 Multi terabits/s optical access transport technologies
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Abstract
Tremendous efforts have been developed for multi-Tbps over ultra-long distance and metro and access optical networks. With the exponential increase demand on data transmission, storage and serving, especially the 5G wireless access scenarios, the optical Internet networking has evolved to data-center based optical networks pressuring on novel and economical access transmission systems. This paper reports (1) Experimental platforms and transmission techniques employing band-limited optical components operating at 10G for 100G based at 28G baud. Advanced modulation formats such as PAM-4, DMT, duo-binary etc are reported and their advantages and disadvantages are analyzed so as to achieve multi-Tbps optical transmission systems for access inter- and intra- data-centered-based networks; (2) Integrated multi-Tbps combining comb laser sources and micro-ring modulators meeting the required performance for access systems are reported. Ten-sub-carrier quantum dot com lasers are employed in association with wideband optical intensity modulators to demonstrate the feasibility of such sources and integrated micro-ring modulators acting as a combined function of demultiplexing/multiplexing and modulation, hence compactness and economy scale. Under the use of multi-level modulation and direct detection at 56 GBd an aggregate of higher than 2Tbps and even 3Tbps can be achieved by interleaved two comb lasers of 16 sub-carrier lines; (3) Finally the fundamental designs of ultra-compacts flexible filters and switching integrated components based on Si photonics for multi Tera-bps active interconnection are presented. Experimental results on multi-channels transmissions and performances of optical switching matrices and effects on that of data channels are proposed.
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Le Nguyen Binh, Le Nguyen Binh, Thomas Wang Tao, Thomas Wang Tao, Daniil Livshits, Daniil Livshits, Alexey Gubenko, Alexey Gubenko, Fotini Karinou, Fotini Karinou, Gordon Liu Ning, Gordon Liu Ning, Alexey Shkolnik, Alexey Shkolnik, } "Multi terabits/s optical access transport technologies", Proc. SPIE 9772, Broadband Access Communication Technologies X, 97720B (12 February 2016); doi: 10.1117/12.2214412; https://doi.org/10.1117/12.2214412
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