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Submarine line termination equipment (SLTE) for open cables


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Jörg-Peter Elbers’ NGON and DCI World presentation explored the specifics around open cables, technology developments and the implications for enhanced networking performance. The open cables concept for subsea transport was discussed as well as methods for the navigation and management of open cables and the key performance metrics for determining success.

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Submarine line termination equipment (SLTE) for open cables

  1. 1. Submarine line termination equipment (SLTE) for open cables Jörg-Peter Elbers, SVP, advanced technology NGON 2019
  2. 2. © 2019 ADVA Optical Networking. All rights reserved.22 Leveraging terrestrial line system technology Open to advances in coherent transponder technology. Flexible SLTE architecture MC: maintenance controller LME: line monitoring equipment CRE: command response equipment (for branching units and ROADMs) CTE: cable termination equipment PFE: power feed equipment Flexgrid WSS Transponders ASE loading PFE LME CRE MC Cable landing station (CLS) Management and control ROADM CLS CLS CTE
  3. 3. © 2019 ADVA Optical Networking. All rights reserved.33 Pooling resources from different locations, customers or SLTE types Extension to optical spectrum sharing SLTE #1 l Unleashing the capacity of optical fiber SLTE #N SLTE N PFE LME CRE MC Cable landing station (CLS) Management and control CTE SLTE #1 PoP A SLTE #2 … SLTE #2 PoP B SLTE #N PoP Z … Flexgrid WSS Spectrum management Common photonics
  4. 4. © 2019 ADVA Optical Networking. All rights reserved.44 Maximizing capacity on every network Supporting 100G and 400G subsea transport today Flexible terminal technology Trans-Pacific distances Trans-Atlantic distances Reach Capacity 16 QAM QPSK Fractional QAM TeraFlexTM 1x 400GbE/ 4x 100GbE 2x 400GbE/ 8x 100GbE
  5. 5. © 2019 ADVA Optical Networking. All rights reserved.55 400Gbit/s interfaces 200Gbit/s per carrier QPSK – 16QAM 4x 100Gbit/s clients 1.2Tbit/s interfaces 600Gbit/s per carrier QPSK – 64QAM 12x 100Gbit/s / 3x 400Gbit/s clients 2.4Tbit/s + interfaces 1.2Tbit/s + per carrier QPSK – 64QAM+ ≥6x 400Gbit/s / 3x 800Gbit/s clients 70GBaud – today 140GBaud – next35GBaud – previous Delivering performance without compromising power, footprint and cost Terminal evolution Doubling the symbol rate every generation
  6. 6. Thank you IMPORTANT NOTICE The content of this presentation is strictly confidential. ADVA Optical Networking is the exclusive owner or licensee of the content, material, and information in this presentation. Any reproduction, publication or reprint, in whole or in part, is strictly prohibited. The information in this presentation may not be accurate, complete or up to date, and is provided without warranties or representations of any kind, either express or implied. ADVA Optical Networking shall not be responsible for and disclaims any liability for any loss or damages, including without limitation, direct, indirect, incidental, consequential and special damages, alleged to have been caused by or in connection with using and/or relying on the information contained in this presentation. Copyright © for the entire content of this presentation: ADVA Optical Networking.