NORDUnet Conference Fiber Pair Sharing. Pavel Škoda, Josef Vojtěch

Transcription

1 NORDUnet Conference 2012 Fiber Pair Sharing Pavel Škoda, Josef Vojtěch Department of Optical Networks Oslo, September 18th, 2012 NORDUnet Conference

2 Outline Motivation Economical View Principal Implementation Laboratory test in CESNET Field Trial in CESNET Fiber Pair Sharing Enablers Oslo, September 18th, 2012 NORDUnet Conference

3 Motivation National Research and Education Networks Country-wide network Lower traffic Financed by state Need for fleibility CESNET2 Network Not telco or provider Fleibility instead of capacity Limited budget Oslo, September 18th, 2012 NORDUnet Conference

4 Motivation Fiber pair sharing - multiple transmission systems in fiber pair Why?! No free fiber left (ground cable installation is epensive e.g. 60 EUR/m in rural areas [1]) Need for additional transmission system especially with own management, guard-bands, etc. Economical solution [1] S. Sima et al.: Deliverable D3.2v3 of Porta Optica project: Economic analysis, dark fibre usage cost model and model of operations Oslo, September 18th, 2012 NORDUnet Conference

5 Economical View Eample of economy of fiber pair sharing for case of fibers rental [1] Fiber pair rental 10Gbps traditional system 10Gbps open system 0.5 EUR/m/year 0.12 EUR/m/year EUR/m/year < [1] S. Sima et al.: Deliverable D3.2v3 of Porta Optica project: Economic analysis, dark fibre usage cost model and model of operations Oslo, September 18th, 2012 NORDUnet Conference

6 Principal Implementation Spatial Multiple In fiber pair Two single fiber bidirectional systems, each over one fiber Ecellent systems isolation but limited to 2 systems Proven technology, commercially available and in operation Over 905km of single fiber DWDM systems in CESNET2 T R T R R T R T Oslo, September 18th, 2012 NORDUnet Conference

7 Principal Implementation Inside one fiber Few mode fiber (3, 5,..) Multicore fiber Special Multiple Still under development known issues: talk, coupling/decoupling, splicing, connectors, amplification (EDFA/Raman) source: C. Koebele et al.: 40km Transmission of Five Mode Division Multipleed Data Streams at 100Gb/s with low MIMO-DSP Compleity, ECOC 2011 PDP Th.12.C3 Oslo, September 18th, 2012 NORDUnet Conference

8 Principal Implementation Band based Single vendor - C and L proven, S still limited Arrangement of management channels Interaction through Raman scattering Wavelength Multiple Optical power S band C band L band Wavelength Source: Cisco Oslo, September 18th, 2012 NORDUnet Conference

9 Principal Implementation Wavelength Multiple Sub-band based Interleaved Free allocation Arrangement of management channels complicated Interaction XPM and FWM, vs. guardbands Optical power C band Wavelength Optical power C band Optical power C band Wavelength Wavelength Oslo, September 18th, 2012 NORDUnet Conference

10 Laboratory test in CESNET Band based fibre sharing: C and L band lab eperiments 150 and 200km G.652 fibre on spools Launched power about +8.5 and dbm Power transfer (Raman effect) from lower to higher wavelengths 0.15/0.13 db 0.58/0.38 db Oslo, September 18th, 2012 NORDUnet Conference

11 Field Trial in CESNET Field trial C + L EF line Praha-Brno 300km, miture of G.655 fibre with G.652 local loops Oslo, September 18th, 2012 NORDUnet Conference

12 Fiber Pair Sharing Enablers Customer Empowered Fiber Networks Single Fiber Bidirectional Lines Nothing in Line Approach Fiber Pair Sharing Alien Wavelengths Photonic Services Photonic Services Alien Waves SFB Lines CEF Fiber Pair Sharing Nothing In Line CzechLight DWDM System Open transmission System Fleibility and Adaptability Freedom in network development CEF Networks enabling Call to joint deployment of photonic transmission systems developed by CESNET Oslo, September 18th, 2012 NORDUnet Conference

13 Conclusion Fiber Pair Sharing Designed for NRENs Trade-off for capacity Various methods Test of C+L band laboratory Field trial in Eperimental Facility of CESNET Fiber Pair Sharing enabled by CEF Networks Supported by Open CzechLight DWDM system Oslo, September 18th, 2012 NORDUnet Conference

14 Acknowledgement Jan Gruntorád, Václav Novák, Miroslav Karásek, Vladimír Smotlacha, Helmut Sverenyák and Optical Networks Department team Work was partially supported by Czech Institutional funding of research, by funding of project Large Infrastructure CESNET ( and in GN3 project ( under EU FP7 Presented ideas do not necessarily reflect an official opinion of the GN3, CESNET or any other institution or project. Oslo, September 18th, 2012 NORDUnet Conference

15 Thank you for your attention. Pavel.Skoda(at)cesnet(dot)cz Oslo, September 18th, 2012 NORDUnet Conference