1. Jan Radil Miroslav Karásek
Experiments with 10 GE long-haul transmissions in academic and research networks
Jan Radil
Miroslav Karásek
April 19-21, 2004
Spring 2004 Internet2 Member Meeting, Arlington, Virginia
Internet 2 member meeting, Arlington, Virginia

2. Spring 2004 Internet2 Member Meeting, Arlington, Virginia
Experiments with 10 GE long-haul transmissions in academic and research networks Outline
Motivation for extending the span length
Numerical simulations
Practical results
Conclusions
April 19-21, 2004
Spring 2004 Internet2 Member Meeting, Arlington, Virginia

3. Spring 2004 Internet2 Member Meeting, Arlington, Virginia
Experiments with 10 GE long-haul transmissions in academic and research networks Motivations
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
April 19-21, 2004
Spring 2004 Internet2 Member Meeting, Arlington, Virginia

4. Spring 2004 Internet2 Member Meeting, Arlington, Virginia
Experiments with 10 GE long-haul transmissions in academic and research networks Numerical 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
April 19-21, 2004
Spring 2004 Internet2 Member Meeting, Arlington, Virginia

5. Spring 2004 Internet2 Member Meeting, Arlington, Virginia
Experiments with 10 GE long-haul transmissions in academic and research networks Practical 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
April 19-21, 2004
Spring 2004 Internet2 Member Meeting, Arlington, Virginia

6. Spring 2004 Internet2 Member Meeting, Arlington, Virginia
Experiments with 10 GE long-haul transmissions in academic and research networks Practical results – 4 WDM channels
2 x 1 GE plus 2 x 10 GE over 202 km
April 19-21, 2004
Spring 2004 Internet2 Member Meeting, Arlington, Virginia

7. Spring 2004 Internet2 Member Meeting, Arlington, Virginia
Experiments with 10 GE long-haul transmissions in academic and research networks Practical results – 2 WDM channels
2 x 10 GE over 252 km
April 19-21, 2004
Spring 2004 Internet2 Member Meeting, Arlington, Virginia

8. Spring 2004 Internet2 Member Meeting, Arlington, Virginia
Experiments with 10 GE long-haul transmissions in academic and research networks Practical 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: km/290 km)
April 19-21, 2004
Spring 2004 Internet2 Member Meeting, Arlington, Virginia

9. Spring 2004 Internet2 Member Meeting, Arlington, Virginia
Experiments with 10 GE long-haul transmissions in academic and research networks Practical results – the map of Czech republic
Corrected diameters
CzechLight experimental network
April 19-21, 2004
Spring 2004 Internet2 Member Meeting, Arlington, Virginia

10. Spring 2004 Internet2 Member Meeting, Arlington, Virginia
Experiments with 10 GE long-haul transmissions in academic and research networks Practical results – the map of Netherlands
Air distances
AFDR can be different
April 19-21, 2004
Spring 2004 Internet2 Member Meeting, Arlington, Virginia

11. Spring 2004 Internet2 Member Meeting, Arlington, Virginia
Experiments with 10 GE long-haul transmissions in academic and research networks Practical results – the map of Virginia
Air distances
April 19-21, 2004
Spring 2004 Internet2 Member Meeting, Arlington, Virginia

12. Spring 2004 Internet2 Member Meeting, Arlington, Virginia
Experiments with 10 GE long-haul transmissions in academic and research networks Conclusions
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)
April 19-21, 2004
Spring 2004 Internet2 Member Meeting, Arlington, Virginia

13. Spring 2004 Internet2 Member Meeting, Arlington, Virginia
Experiments with 10 GE long-haul transmissions in academic and research networks Acknowledgements
Many thanks to Lada Altmanová, Stanislav Šíma and Josef Vojtěch from CESNET
April 19-21, 2004
Spring 2004 Internet2 Member Meeting, Arlington, Virginia

14. Spring 2004 Internet2 Member Meeting, Arlington, Virginia
Experiments with 10 GE long-haul transmissions in academic and research networks References
[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.
April 19-21, 2004
Spring 2004 Internet2 Member Meeting, Arlington, Virginia

15. Spring 2004 Internet2 Member Meeting, Arlington, Virginia
Experiments with 10 GE long-haul transmissions in academic and research networks Thank you for your attention!
April 19-21, 2004
Spring 2004 Internet2 Member Meeting, Arlington, Virginia