Modulation and multiplexing in ultra-broadband photonic internet: Part II

Ryszard S. Romaniuk

doi:10.1117/12.898284

10 June 2011 Modulation and multiplexing in ultra-broadband photonic internet: Part II

Ryszard S. Romaniuk

Proceedings Volume 8010, Optical Fibers and Their Applications 2011; 801005 (2011) https://doi.org/10.1117/12.898284
Event: Optical Fibers and Their Applications 2011, 2011, Bialystok-Bialowieza, Poland

Abstract

In this paper, there is presented a review of our today's understanding of the ultimately broadband photonic Internet. A simple calculation is presented showing the estimate of the throughput of the core photonic network branches. Optoelectronic components, circuits, systems and signals, together with analogous electronic entities and common software layers, are building blocks of the contemporary Internet. Participation of photonics in development of the physical layer in the future Internet will probably increase. The photonics leads now to a better usage of the available bandwidth (increase of the spectral efficiency measured in Bit/s/Hz), increase in the transmission rate (from Gbps, via Tbps up to probably Pbps), increase in the transmission distance without signal regeneration (in distortion compensated active optical cables), increase in energy/power efficiency measured in W/Gbps, etc. Photonics may lead, in the future, to fully transparent optical networks and, thus, to essential increase in bandwidth and network reliability. It is expected that photonics (with biochemistry, electronics and mechatronics) may build psychological and physiological interface for humans to the future global network. The following optical signal multiplexing methods were considered, which are possible without O/E/O conversion: TDM-OTDM, FDM-CO-OFDM, OCDM-OCDMA, WDM-DWDM.

Citation Download Citation

Ryszard S. Romaniuk "Modulation and multiplexing in ultra-broadband photonic internet: Part II", Proc. SPIE 8010, Optical Fibers and Their Applications 2011, 801005 (10 June 2011); https://doi.org/10.1117/12.898284

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