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Coherent Alien Waves over a DCM-compensated DWDM network WHY – WHAT – HOW – WHEN … of … a study of performances and possible limitations of the coherent alien wavelengths transport on a DCM based optical network Gloria Vuagnin TNC15 | Porto, June 15th 2015 Why to study Alien wavelengths Older platform (2011) • • • 1GE and 10GE clients 10Gb/s and 40Gb/s IM-DD* DCM**-based infrastructure * Intensity Modulation Direct Detection **Dispersion Compensation Module Newer platform (2015) • • • 10GE – 40GE - 100 GE clients 500Gb/s coherent SuperChannel DCM**-free infrastructure From South the Alien waves technology should invade the Central-North infrastructure to bring there the 100GE client opportunity Gloria Vuagnin • Smooth migration (@ first: main nodes only, later amplifiers) TNC15 | Porto, June 15th 2015 #2 Where and what we planned to test Where: RM2-NA1: • 300 km – 1 Raman, 4 ROADMs RM2 – BA1: • 700 km – 2Ramans, 8 ROADMs What we plan to study: Over the DCM-based infrastructure • • Trial runs Performance of the coherent optical super-channel @ 500Gb/s (10 carriers) in QPSK and BPSK modulation scenario • BER –pre/post-FEC, OSNR, Q value, Optical power, reach Performance of the optical native 10Gb/s channels coexisting with coherent alien wavelenths of higher bit rate Gloria Vuagnin TNC15 | Porto, June 15th 2015 #3 How the test will be done Existing Transport Manager Infinera DNA Existing Terminal Existing Amp Chain OFM-40 5 native 10Gb/s optical channels single 500Gb/s superchannel (OCG: 5x100Gb/s dual carrier) made by 10 carriers, 50Gb/s@200 GHz spacing How many 100GE client s? How far? OFM-40 In Band or Out of Band GMPLS Existing carriers 50Ghz INFN OCG Carrier 25Ghz Gloria Vuagnin TNC15 | Porto, June 15th 2015 #4 How does the integration work? Ch.39 Ch.38 Ch. 6 Ch. 5 Infinera DTN-X OCG-8,1 : Ch. 40 3rd Party Amplifier chain 3rd Party Mux OCG-8,10: Ch. 4 OCG-8,9 : Ch. 8 OCG-8,8 : Ch. 12 Mix and Match 3rd party and Infinera Waves 3rd Party Mux Ch.11 Existing waves OFM-40 : Passive 1RU Filter C8, OCG 8 Booster amp / OCG – 3RU Gloria Vuagnin OCG 1-16 Infinera : 191,725 – 195,925 THz Channel 1-80 Huawei : 196,05 – 192, 10 THz TNC15 | Porto, June 15th 2015 #5 When First plan Executive doc ready Equipment order Delivery & Set-up Early results Apr 2015 Gloria Vuagnin Jun 2015 Jul 2015 Sep 2015 Final results Oct 2015 TNC15 | Porto, June 15th 2015 END 2015 #6 Conclusions To study alien wavelengths on GARR infrastructure is extremely interesting and usefull. If Aliens are: • nice and friendly (they come in peace!) • • Smooth migration between platforms And much more...plans, projects and tests to do • manageable but tricky • mission: define strict operational procedures • entirely dangerous • Gloria Vuagnin What a shame! however it is definitely worth to know it TNC15 | Porto, June 15th 2015 #7 Questions ? Gloria Vuagnin … Remember they are watching us… TNC15 | Porto, June 15th 2015 #8 acronyms DWDM: Dense Wavelength Division Multiplexing DCM: Dispersion Compensation Module IM-DD: Intensity Modulation Direct Detection RAMAN pump: amplificator based on Raman effect ROADM: Reconfigurable Optical Add Drop Multiplexers BER: Bit Error Rate FEC: Forward Error Correction OSNR: Optical Signal Noise Ratio Q value: QPSK: Quadrature Phase Shift Keying BPSQ: Binary Phase Shift Keying OCG: Optical Carrier Group OFM: Optical Filter Module GMPLS: Generalized Multi-Protocol Label Switching Nome Cognome >> “intestazione e pié di pagina” Evento | Luogo, data >> “intestazione e pié di pagina” #9