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Experiments with 10 GE long-haul transmissions in academic and research net works

Experiments with 10 GE long-haul transmissions in academic and research net works. www.cesnet.cz. Jan Radil Miroslav Karásek. Spring 2004 Internet2 Member Meeting, Arlington, Virginia. Experiments with 10 GE long-haul transmissions in academic and research networks Outline.

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Experiments with 10 GE long-haul transmissions in academic and research net works

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  1. Experiments with 10 GE long-haul transmissions in academic and research networks www.cesnet.cz Jan Radil Miroslav Karásek Spring 2004 Internet2 Member Meeting, Arlington, Virginia Internet 2 member meeting, Arlington, Virginia

  2. Experiments with 10 GE long-haul transmissions in academic and research networksOutline • Motivation for extending the span length • Numerical simulations • Practical results • Conclusions Spring 2004 Internet2 Member Meeting, Arlington, Virginia

  3. Experiments with 10 GE long-haul transmissions in academic and research networksMotivations • Nothing-in-line (NIL) approach • Drawback and problems with in-line amplifiers (EFDAs, Raman) • Electric power supplies • Increase the probability of network breakdown • Regular maintenance in remote sites • 1 GE and 10 GE everywhere Spring 2004 Internet2 Member Meeting, Arlington, Virginia

  4. Experiments with 10 GE long-haul transmissions in academic and research networksNumerical simulations • To estimate the maximum span length @10Gbit/s with G.652 SSMF • OptiSystem • Artis • Optimization of input powers (EDFA, Raman) and dispersion compensation ratio Spring 2004 Internet2 Member Meeting, Arlington, Virginia

  5. Experiments with 10 GE long-haul transmissions in academic and research networksPractical results • 2 x 1 GE plus 2 x 10 GE over 202 km • 2 x 10 GE over 252 km • High power EDFA boosters • Low noise EDFA pramplifiers • High power Raman pump lasers • Dispersion compensating fibres • Splitters, optical tunable filters (no DWDM equipment) • BER = 10-13 Spring 2004 Internet2 Member Meeting, Arlington, Virginia

  6. Experiments with 10 GE long-haul transmissions in academic and research networksPractical results – 4 WDM channels • 2 x 1 GE plus 2 x 10 GE over 202 km Spring 2004 Internet2 Member Meeting, Arlington, Virginia

  7. Experiments with 10 GE long-haul transmissions in academic and research networksPractical results – 2 WDM channels • 2 x 10 GE over 252 km Spring 2004 Internet2 Member Meeting, Arlington, Virginia

  8. Experiments with 10 GE long-haul transmissions in academic and research networksPractical results – the map of Czech republic • Air distances • Corrections needed • Air to fibre distance ratio – AFDR • AFDR = 0,65 (worst case for Praha-Brno fibre: 190 km/290 km) Spring 2004 Internet2 Member Meeting, Arlington, Virginia

  9. Experiments with 10 GE long-haul transmissions in academic and research networksPractical results – the map of Czech republic • Corrected diameters • CzechLight experimental network Spring 2004 Internet2 Member Meeting, Arlington, Virginia

  10. Experiments with 10 GE long-haul transmissions in academic and research networksPractical results – the map of Netherlands • Air distances • AFDR can be different Spring 2004 Internet2 Member Meeting, Arlington, Virginia

  11. Experiments with 10 GE long-haul transmissions in academic and research networksPractical results – the map of Virginia • Air distances Spring 2004 Internet2 Member Meeting, Arlington, Virginia

  12. Experiments with 10 GE long-haul transmissions in academic and research networksConclusions • WDM 10 GE long haul NIL transmissions (easy to deploy with dark fibres, cost-effective) • For experimental networks (CzechLight) • Bandwidth on demand (real lightpaths) for clusters/grid users • Optical services to new end users (high-speed, few-to-few) Spring 2004 Internet2 Member Meeting, Arlington, Virginia

  13. Experiments with 10 GE long-haul transmissions in academic and research networksAcknowledgements • Many thanks to Lada Altmanová, Stanislav Šíma and Josef Vojtěch from CESNET Spring 2004 Internet2 Member Meeting, Arlington, Virginia

  14. Experiments with 10 GE long-haul transmissions in academic and research networksReferences • [1] Karásek, M. - Radil, J. - Boháč, L. , „Optimization of NRZ data transmission at 10 Gbit/s over G.652 without in-line EDFA’s “, In: Fiber and Integrated Optics, tbp, 2004. • [2] Šíma, S. - Altmanová, L. - Radil, J., „Fibres and advanced optical devices for a new network strategy. “, In: TF - NGN meeting, Cambridge, 2003. • [3] Karásek, M. - Peterka, P. - Radil, J. , „202 km repeaterless transmission of 2 x 10 GE plus 2 x 1 GE channels over standard single mode fibre “, In: Optics Communications, tbp, 2004. • [4] Karásek, M. - Peterka, P. - Radil, J. , „Repeaterless Transmission of 2 x 10 GE Channels over 252 km of Standard Single Mode Fibre without in-line EDFA “, In: IEEE J. on Selected Areas in Communications, sfp, 2004. Spring 2004 Internet2 Member Meeting, Arlington, Virginia

  15. Experiments with 10 GE long-haul transmissions in academic and research networksThank you for your attention! Spring 2004 Internet2 Member Meeting, Arlington, Virginia

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