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Submarine Amplifiers and Systems
1.
Submarine Systems and
Amplifiers II Towards Terabit per Second Optical Networking padtec.com Stefan Tenenbaum Padtec R&D stefan@padtec.com T.: + 55 19 2104.9651
2.
Topics to be
covered • Padtec Introduction • Submarine Systems • High-reliability Request • Optical Submarine Line Amplifiers Padtec S/A © 2012 Todos os Direitos Reservados • Branching Unit • Supervisory System • Future Trends in Submarine Systems
3.
• Operation started
in August 2001. • Largest Optical Networking Manufacturer in Brazil. • Revenue: rd USD 160M. Padtec S/A High capacity optical transport solutions Padtec S/A © 2012 Todos os Direitos Reservados 3 • Global supplier: equipment and solutions sold in 42 countries. • Productivity: revenue of USD 400 k per employee per year. • R&D investment: 15% of revenue.
4.
Padtec S/A Profile • Focus:
dedicated to the development, manufacturing and sales of optic communication systems. • Flexibility: custom solutions with competitive Padtec S/A © 2012 Todos os Direitos Reservados 4 • National Capacity and Knowledge: high technology with Brazilian R&D. solutions with competitive prices.
5.
Padtec S/A Worldwide solutions A
imagem não pode ser exibida. Talvez o computador não tenha memória suficiente para abrir a imagem ou talvez ela esteja corrompida. Reinicie o computador e abra o arquivo novamente. Se ainda assim aparecer o x vermelho, poderá ser necessário excluir a imagem e inseri-la novamente. Padtec S/A © 2012 Todos os Direitos Reservados 5 • Headquarters: Campinas, SP – Brazil. • Regional offices: São Paulo, Rio de Janeiro and Brasília • Foreign offices: Argentina, Mexico, Peru, France, Italy and Israel
6.
Padtec S/A Subsidiaries Civcom® is
a pioneer in the development and manufacturing of high speed tunable transponders and dispersion compensation Opto- electronic components and WxBr is a high technology wireless telecommunication company, dedicated to development, manufacturing and sales of products and solutions for PSG Telecom is a professional services company focused in optical communication networks. PSG Telecom provides innovation and technology expertise applied in Civcom WxBR PSG Telecom Padtec Padtec S/A © 2012 Todos os Direitos Reservados 6 electronic components and modules. Civcom’s line of products provides worldwide solutions for high data rates Telecom and Datacom applications. The company prides itself as an innovator in the field of Transmission & Dispersion Tolerance solutions, and as the developer of the world’s first 10Gbps 300PIN MSA compliant tunable transponder, as well as the smallest tunable module in the market. products and solutions for Broadband Wireless Access, WiMax, Wi-Fi and LTE technologies. WxBr provides products and solutions to different market segments, including carriers, digital cities, corporate networks and critical mission applications. The company has achieved important technology and commercial partnerships, providing complete solutions to customers. technology expertise applied in network services as Technical Support, Systems Deployment, Network Operation and Maintenance, Maintenance Centers, and NOC for optical communications networks.
7.
Optical Backbone Metro/Aggregation Access Services Standalones Optical Networks Optimized
Optical Communication Solutions * • Submarine Systems • Ultra LH, LH DWDM •Aggregation network • FTTx GPON • xWDM Access • PTN • Optical Amplifying • Transponders • Optical Protection • NOC • Network Analysis/ Diagnostic Padtec S/A Optical Solutions Padtec S/A © 2012 Todos os Direitos Reservados 7 Unified Network Management System •Aggregation network • DWDM • ROADM • OXC • PTN • PTN • Optical Protection • Media Converters • Passive units Diagnostic • Field Support * ISO 9001/2008 Training
8.
Padtec S/A Customer Profile Padtec
S/A © 2012 Todos os Direitos Reservados 8
9.
LightPad Platform -
Submarine Application Padtec S/A © 2012 Todos os Direitos Reservados 9
10.
Submarine Division Overview Full
Turnkey Supplier for Submarine Transmission Networks Commissioning and system design for new deployment Terrestrial and Submarine survey LightPad Platform – Submarine Systems Padtec S/A © 2012 Todos os Direitos Reservados 1010 Full system deployment including cable launch and marine operations 24 x 7 support and maintenance – Committed SLAs Solution development and manufacturing Network Operation Center
11.
Submarine Systems Padtec offers
a complete turnkey project for optical submarine network Country B Country A Country C Wet Plant Padtec S/A © 2012 Todos os Direitos Reservados 1111 Dry Plant • SLTE – Entire DWDM Optical Transmission Infrastructure • Cable Termination • Power Supply for repeatered submarine system • Full system management Wet Plant • Submarine Optical Cable • Optical Submarine Line Amplifier (OSLA) • Branching Unit (BU) Deployment • Infrastructure construction • Cable loading • Marine Survey • Optical Submarine Network Maintenance/NOC
12.
Wet Plant Submarine System
- building blocks Terminal Station B Terminal Station A Padtec S/A © 2012 Todos os Direitos Reservados 12 Terminal Station B Terminal Station A SLTE Submarine Line Terminal Eq. PFE Power Feeding Equipment OSLA Optical Submarine Line Amplifier CTE Cable Termination and Supervisory equipment BU Branching Unit EMS Element Manager System Terminal Station C
13.
LightPad Platform: Submarine
Network Dry Plant Wet Plant • High DWDM capacity – Up to 100 channels on C-Band • Coherent 100Gbps (DP-QPSK) • EDFA (Booster & Pre-Amp) • ROPA (Remote Optical Amplifier) • Chromatic Dispersion Compensation • Mechanical Assembly for deep water • In Line EDFA Amplification (OSLA) • Branching unit • Optical Cable • Integrated Management (Dry and Wet Plant) Submarine Systems Padtec S/A © 2012 Todos os Direitos Reservados 1313 • Chromatic Dispersion Compensation (additional to the DSP) • Power Feeding Equipment • Integrated management and NMS structure •Miscellaneous (FAN, Sub-rack,…) Plant) Items deployed on Dry Plant • Monitoring – C-OTDR • PFE
14.
Terminal Equipment • Compatible
to 14U Chassis (9U – 3slots) • Client Interface - XFP • Protocols • 10GbE LAN/WAN • STM-64 • 8G Fibre Channel • OTU2 / OTU2e 100G DP-DQPSK Coherent Transponder Sinal DWDM OTU4 (OTL 4.10) HD-FEC 7% OH SD-FEC 20% OH 127.156Gb/s Muxponder 100 Gb/s G.709 Muxponder 100 Gb/s G.709 OTU2 / OTU2e 10GbE LAN 10GbE WAN 8G FC STM-64 Padtec S/A © 2012 Todos os Direitos Reservados I • OTU4 Interface • DWDM 37.5GHz (or standard 50GHz) / Tunable • Coherent DP-QPSK • Protection architecture compatible: 1+1 (Recovery Time < 50msec) • CD Tolerance: +/- 65 ns/nm • DGD Tolerance: 100 ps • OSNR Tolearance: 14 dB (dB/0.1nm)
15.
Ch02 Ch03 Ch01 Ch03 Ch01 Ch02 L LB MUX Ch02 Ch04 Ch03 Ch01 ... DEMUX Ch04 Ch03 Ch01 Ch02 ... Submarine System ... DEMUXCh02 Ch04 Ch03 Ch97 Ch98 Ch100 Ch99 Ch01 Ch100 ... MUX Ch99 Ch97 Ch98 Ch04 Ch03 Ch01 Ch02 L L L LB ... MUX Ch02 Ch04 Ch03 Ch97 Ch98 Ch100 Ch99 Ch01 ... ... DEMUX Ch99 Ch97 Ch98 Ch04 Ch03 Ch01 Ch02 Ch100 ...
Span Linklength = Nspan . Spanlength Padtec S/A © 2012 Todos os Direitos Reservados ... DEMUX Ch04 Ch03 Ch97 Ch98 Ch100 Ch99 Ch100 ... MUX Ch99 Ch97 Ch98 Ch04 Ch03 L L L LB ... MUX Ch97 Ch98 Ch100 Ch99 ... ... DEMUX Ch99 Ch97 Ch98 Ch100 ... Span ... DEMUX Ch02 Ch04 Ch03 Ch97 Ch98 Ch100 Ch99 Ch01 Ch100 ... MUX Ch99 Ch97 Ch98 Ch04 Ch03 Ch01 Ch02 L L L LB ... MUX Ch02 Ch04 Ch03 Ch97 Ch98 Ch100 Ch99 Ch01 ... ... DEMUX Ch99 Ch97 Ch98 Ch04 Ch03 Ch01 Ch02 Ch100 ... Span CABLECABLE
16.
Submarine System ... DEMUXCh02 Ch04 Ch03 Ch97 Ch98 Ch100 Ch99 Ch01 Ch100 ... MUX Ch99 Ch97 Ch98 Ch04 Ch03 Ch01 Ch02 L L L LB ... MUX Ch02 Ch04 Ch03 Ch97 Ch98 Ch100 Ch99 Ch01 ... ... DEMUX Ch99 Ch97 Ch98 Ch04 Ch03 Ch01 Ch02 Ch100 ... Span Ch02 Ch03 Ch01 Ch03 Ch01 Ch02 L
LB MUX Ch02 Ch04 Ch03 Ch01 ... DEMUX Ch04 Ch03 Ch01 Ch02 ... Capacity = Nchannels . Nfibers Padtec S/A © 2012 Todos os Direitos Reservados ... DEMUX Ch04 Ch03 Ch97 Ch98 Ch100 Ch99 Ch100 ... MUX Ch99 Ch97 Ch98 Ch04 Ch03 L L L LB ... MUX Ch97 Ch98 Ch100 Ch99 ... ... DEMUX Ch99 Ch97 Ch98 Ch100 ... Span ... DEMUX Ch02 Ch04 Ch03 Ch97 Ch98 Ch100 Ch99 Ch01 Ch100 ... MUX Ch99 Ch97 Ch98 Ch04 Ch03 Ch01 Ch02 L L L LB ... MUX Ch02 Ch04 Ch03 Ch97 Ch98 Ch100 Ch99 Ch01 ... ... DEMUX Ch99 Ch97 Ch98 Ch04 Ch03 Ch01 Ch02 Ch100 ... Span CABLECABLE
17.
Amplifier Design • Single
container for all the amplifiers with large dimensions and weight; • Sealing and mechanical design must guarantee high performance; • State-of-the-art solution: low-size optical amplifiers with reduced consumption. Optimized performance for 100 channels (37,5 GHz). Cable Cable Padtec S/A © 2012 Todos os Direitos Reservados ...
18.
• Add/drop fibers
(channels); • Supports up to 3 submarine cables; • Compatible with most optical submarine cables. Branching Unit Optical and/or electrical connection Padtec S/A © 2012 Todos os Direitos Reservados 18 electrical connection
19.
Branching Unit Padtec S/A
© 2012 Todos os Direitos Reservados 19 • Regional non-repeatered (festoon); • Regional repeatered with(out) BU; • Transoceanic with(out) BU.
20.
Terminal Station Beach Joint Land
Cable Double Armoured Cable 0 m 200 m Cables burial Submarine Cables Submarine cable types as a function ofSubmarine cable types as a function of water depth and sea bed profilewater depth and sea bed profile Padtec S/A © 2012 Todos os Direitos Reservados BU Deep water cable 200 m 1500 m 3000 m 8000 m Cables burial Single Armoured Cable Deep water cable
21.
High-reliability request • Highly-reliable
repeaters are mandatory for any submarine system!!! Q: What do I mean by highly-reliable? A: No fail !! 1st Actions: • Robust to high-hydraulic pressure; • Resistant to corrosion from the water; • Internal circuit (optics and eletronics) of high-reliability: o Amplifier design must be based on well known and assessed Padtec S/A © 2012 Todos os Direitos Reservados o Amplifier design must be based on well known and assessed technologies and components; • OPEX dominated by wet plant fault repair cost: o Marine operation (< 2 in 25 years); o Capacity loss for an unpredictable time duration (offline link); • R&D challenge: INNOVATE WITHOUT COMPROMISING HIGH RELIABILITY
22.
• Some examples
- for passive parts (doped fibers and components): o mechanical stress; o fiber bend-radius; o components fixing; o splices. High-reliability request Padtec S/A © 2012 Todos os Direitos Reservados • The more critical components for amplifier reliability are: o the pump lasers; • The more critical components for power supply: o the current driver and diodes.
23.
• Components’ reliability
is guaranteed by: o Production technology maturity and quality level (military, space); o Qualification process and data from test and from field; o Screening process: for reducing infant mortality (selection of the hi-rel units); • Increasing reliability to the highest levels: High-reliability request Padtec S/A © 2012 Todos os Direitos Reservados • Increasing reliability to the highest levels: • Amplifier does not include all the terrestrial equipment features: more simple; • Spare parts (but ready for action): the impact on overall reliability is dramatic; • Every single building block of your system should be qualified as hi-rel; • At link level, path protection can be implemented (BU).
24.
High-reliability - FIT •
Required reliability: 2 faults in 25 years lifetime; • FIT – Unit of failure rate: 1 FIT = 10-9 failures/hour; • The number of repairs (in 25 years) = NR; NR = FITTOTAL . 24 (hours) . 265 (days) . 25 (years) . 10-9 Padtec S/A © 2012 Todos os Direitos Reservados • For 2 repairs (NR = 2) in 25 years lifetime: FITTOTAL = 9132 • For 2 faults in a 200 amplifiers link: FITAMPLIFIER = 46 • For 1 fault in a 200 amplifiers link: FITAMPLIFIER = 23
25.
High-reliability - FIT FITTOTAL
= 9132 • If 1FIT = 10-9 faults/hour • Complete system 9132 FITs = 9132.10-9 faults/hour (200 amplifiers) Padtec S/A © 2012 Todos os Direitos Reservados yearsYfaultsX )()( − MTBFfaults −)1( 9132 FITs = 9132.10 faults/hour (200 amplifiers) ( x total hours in 25years) = 2 = total faults in 25 years < 3
26.
High-reliability FIT Optics (passive) Electric Control Optics (active) • Total
Reliability Budget 46 FIT • Equivalent to 2 failures in 25 years Padtec S/A © 2012 Todos os Direitos Reservados SYSTEM LEVEL DEVICE LEVEL (AMPLIFIER) COMPONENT LEVEL
27.
• How does
it work? o Works like an OTDR: back-reflections (Rayleigh backscattering); o Path composed of EDFAs + fibers: EDFAs include unidirectional components that blocks the counterpropagating flow in the opposite direction; Supervisory system • Coherent-OTDR o In-band signal placed together with the DWDM Padtec S/A © 2012 Todos os Direitos Reservados o In-band signal placed together with the DWDM signals; o Composed of active (Tx and Rx) and passive parts (optical bypass); o Able to decribe optical path and amplifier performance. λλλλ
28.
...... L L Supervisory system Padtec S/A
© 2012 Todos os Direitos Reservados
29.
Supervisory system ...... L Optical
by-pass Uplink Flow Padtec S/A © 2012 Todos os Direitos Reservados L... ... Optical by-pass Downlink Flow
30.
Supervisory system ...... L Uplink
Flow Padtec S/A © 2012 Todos os Direitos Reservados L... ... Optical by-pass Downlink Flow
31.
Supervisory system ...... L Optical
by-pass Uplink Flow Padtec S/A © 2012 Todos os Direitos Reservados L... ... Optical by-pass Downlink Flow
32.
Supervisory system (2-spans
system) B ... MUX Ch02 Ch04 Ch03 Ch97 Ch98 Ch100 Ch99 L Ch01 ... DEMUX Ch99 Ch97 Ch98 Ch04 Ch03 Ch01 Ch02 Ch100 P L Padtec S/A © 2012 Todos os Direitos Reservados Span Loss and Length 50 km 100 km
33.
Supervisory system (N-spans
system) B ... MUX Ch02 Ch04 Ch03 Ch97 Ch98 Ch100 Ch99 C-OTDR TX L L Ch01 ... ... ... DEMUX Ch99 Ch97 Ch98 Ch04 Ch03 Ch01 Ch02 C-OTDR RX Ch100 ... ... P Padtec S/A © 2012 Todos os Direitos Reservados TX P ... DEMUX Ch02 Ch04 Ch03 Ch97 Ch98 Ch100 Ch99 L L C-OTDR RX Ch01 Ch100 ... MUX Ch99 Ch97 Ch98 Ch04 Ch03 Ch01 Ch02 B C-OTDR TX RX ... ...... ...
34.
Supervisory system (N-spans
system) B ... DEMUX Ch99 Ch97 Ch98 Ch04 Ch03 Ch01 Ch02 ... MUXCh02 Ch04 Ch03 Ch97 Ch98 Ch100 Ch99 C-OTDR TX L L L L L P Ch03 Ch01 Ch02Ch02 Ch03 C-OTDR TX C-OTDR RX C-OTDR RX Ch100 Ch01 Ch01 ... ... N x Spans Padtec S/A © 2012 Todos os Direitos Reservados P Ch100 ... MUX Ch99 Ch97 Ch98 Ch04 Ch03 ... MUX Ch04 Ch03 Ch97 Ch98 Ch100 Ch99 L L L L L B... km P [a.u.] ... N x Spans km P [a.u.] ... N x Spans
35.
Gain > Span
Loss km Power Gain < Span Loss Power (Amplifiers’) Gain and (Span) Loss monitoring Padtec S/A © 2012 Todos os Direitos Reservados Gain < Span Loss km Gain < or > Span Loss km Power
36.
Fault detection B ... DEMUX Ch99 Ch97 Ch98 Ch04 Ch03 Ch01 Ch02 ... MUXCh02 Ch04 Ch03 Ch97 Ch98 Ch100 Ch99 C-OTDR TX L L
L P Ch01 Ch02Ch02 C-OTDR TX C-OTDR RX C-OTDR RX Ch100 Ch01 Ch01 ... 1 2 N Padtec S/A © 2012 Todos os Direitos Reservados P Ch100 ... MUX Ch99 Ch97 Ch98 Ch04 Ch03 Ch02 ... MUX Ch02 Ch04 Ch03 Ch97 Ch98 Ch100 Ch99 L L L B... km Power ... Fault position (within span 2)
37.
Fault detection B ... DEMUX Ch99 Ch97 Ch98 Ch04 Ch03 Ch01 Ch02 ... MUXCh02 Ch04 Ch03 Ch97 Ch98 Ch100 Ch99 C-OTDR TX L L
L P Ch01 Ch02Ch02 C-OTDR TX C-OTDR RX C-OTDR RX Ch100 Ch01 Ch01 ... N N-1 1 Padtec S/A © 2012 Todos os Direitos Reservados P Ch100 ... MUX Ch99 Ch97 Ch98 Ch04 Ch03 Ch02 ... MUX Ch02 Ch04 Ch03 Ch97 Ch98 Ch100 Ch99 L L L B... km Power ... Faulted span (N-1)
38.
CABLE FIBERS • 10m accuracy
is within the requirements for fault location in a Submarine link; • In-service and In-band monitoring; • Useful both on cable (fiber cut) or amplifier (fail) damage; • Multiple-fiber monitoring: I can switch fiber input C-OTDR signal; C-OTDR Padtec S/A © 2012 Todos os Direitos Reservados 1 2 3 4 • Integrated management: SLTE, OSLA and C-OTDR
39.
Future trends in
submarine technology • The use of an integrated optics solution present the following advantages: o Host up to more systems (at least double the # of amplifiers) in a single mechanical unit; o It can increase the reliability by reducing the number of optical components and fiber splices; • Powerful FEC and DSP (receiver side) o 1st wave: Coherent Techn. + DSP (linear effects) + FEC (3rd generation); o 2nd wave: Coherent Techn. (at much higher rates) + DSP (nonlinear Padtec S/A © 2012 Todos os Direitos Reservados o 2nd wave: Coherent Techn. (at much higher rates) + DSP (nonlinear effects) + FEC (higher coding gains) + advantages of integ. optics = powerful processing algorithms; • Modulation formats and signal generation (transmitter side) o Status today: max. load 100 x 100Gbps; o Future: 400Gbps, Superchannels (higher performance and cost- effective solutions).
40.
Conclusion • These are
all key-points in the development of a submarine system; • The submarine technology came to complete the current product portfolio applied to ULH optical links for Padtec; • There’s a very challenging reliability request in this field o That has been added to Padtec’s expertise in transmission and amplifier research and development together with networks’ design; Padtec S/A © 2012 Todos os Direitos Reservados • Required from us a state-of-the-art: o Project development and components selection; o Amplifier design and performance evaluation; o Systems’ design and performance evaluation; • Strategic to Brazil and to Padtec: is already strenghening the already existent business with all the Americas, Africa and Europe.
41.
Acknowledgements • Full Padtec
submarine team and several colleagues; • Padtec directors; • CPqD Optical Systems’ Group. Padtec S/A © 2012 Todos os Direitos Reservados
42.
Thank you! padtec.com Padtec S/A
© 2011 Todos os Direitos Reservados 4242
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