1 / 27

Submarine Cable System - Focusing on the Link between China & Korea -

Submarine Cable System - Focusing on the Link between China & Korea -. Noriyuki Takeda and Junji Matsuda KDDI Submarine Cable Systems Inc. (KDDI-SCS). Beijing. CKC. Seoul. APCN2. C2C. KJCN. Submarine Cable Systems between Korea and China. 0.56Gbit/s x 1WDM x 2FP. Taean.

tristram
Télécharger la présentation

Submarine Cable System - Focusing on the Link between China & Korea -

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Submarine Cable System - Focusing on the Link between China & Korea - Noriyuki Takeda and Junji Matsuda KDDI Submarine Cable Systems Inc. (KDDI-SCS) KDDI-SCS Proprietary Use Pursuant to Company Instructions

  2. Beijing CKC Seoul APCN2 C2C KJCN Submarine Cable Systems between Korea and China 0.56Gbit/s x 1WDM x 2FP Taean Qingdao Pusan 10Gbit/s x 64WDM x 4FP Chongming 10Gbit/s x 96WDM x 8FP 10Gbit/s x 24WDM x 12FP KDDI-SCS Proprietary Use Pursuant to Company Instructions

  3. Outline 1. Introduction 2. Configuration of Submarine Cable System 3. Transmission Technologies - Experimental Results 4. How to realize the cable system between Korea and China ? - Network configuration - Cost 5. Conclusion KDDI-SCS Proprietary Use Pursuant to Company Instructions

  4. Outline 1. Introduction 2. Configuration of Submarine Cable System 3. Transmission Technologies - Experimental Results 4. How to realize the cable system between Korea and China ? - Network configuration - Cost 5. Conclusion KDDI-SCS Proprietary Use Pursuant to Company Instructions

  5. Repeaterless system and Repeater system SLTE SLTE Cable MC MC Repeaterless System SLTE : Submarine Line Terminating Equipment MC : Maintenance Controller LME : Line Monitoring Equipment PFE : Power Feeding Equipment SLTE SLTE Repeater LME PFE PFE LME Cable MC MC Repeater System KDDI-SCS Proprietary Use Pursuant to Company Instructions

  6. Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter What is “WDM” ? Wavelength Division Multiplexing Total capacity 10Gbit/s x n WDM Wavelength Optical Fiber Multiplexer Demultiplexer KDDI-SCS Proprietary Use Pursuant to Company Instructions

  7. Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Advantage of WDM : Upgrade Upgrade : - Small initial investment - Increase the system capacity when you need without changing the wet plant - After upgrade - Initial Cable capacity : 10Gbit/s x N Repeater KDDI-SCS Proprietary Use Pursuant to Company Instructions

  8. KJCN What is Maximum Number of Wavelength? 10Gbit/s per wavelength Maximum Number of Wavelength Repeater System Repeaterless System System Length [km] KDDI-SCS Proprietary Use Pursuant to Company Instructions

  9. Repeater Optical Fiber Loss (0.2dB/km) Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Why is the Number of l Limited in Repeaterless System? Power Transmitter Receiver Threshold of receiver distance KDDI-SCS Proprietary Use Pursuant to Company Instructions

  10. Cable > 3T bit/s / cable Upgrade Strategy - Repeater system - Repeaterless system l Increasing the # FP (Use the dark fibers) Increasing the # wavelength KDDI-SCS Proprietary Use Pursuant to Company Instructions

  11. Outline 1. Introduction 2. Configuration of Submarine Cable System 3. Transmission Technologies - Experimental Results 4. How to realize the cable system between Korea and China ? - Network configuration - Cost 5. Conclusion KDDI-SCS Proprietary Use Pursuant to Company Instructions

  12. Optical Booster Optical Pre-amplifier FEC FEC Remote Pump Source - Optical Booster and Preamplifier - FEC (Forward Error Correction) - Raman Amplifier - Remote EDFA Amplifier Key Technologies for Repeaterless System Number of wavelengths : 1~2 (Capacity : 10~20Gbit/s /fiber) ~16 (Capacity : ~160Gbit/s /fiber) Trans-mitter Recei-ver KDDI-SCS Proprietary Use Pursuant to Company Instructions

  13. Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Optical Fiber Multiplexer Demultiplexer Repeaterless System - 10Gbit/s x 100WDM, 200km - 100WDM 200km BER : 10-9 Spectrum after 200km transmission Transmission characteristics KDDI-SCS Proprietary Use Pursuant to Company Instructions

  14. Trans-mitter Recei-ver FEC FEC Repeater Fiber (~100km) How to transmit a large number of wavelength…….. 2. By making the wavelength spacing narrower Key Technologies for Repeater System 1. By making the signal bandwidth wider KDDI-SCS Proprietary Use Pursuant to Company Instructions

  15. Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Trans-mitter Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Recei-ver Repeater System - 10Gbit/s x 200WDM, 9200km - 200WDM 9,200km Repeater Fiber (~45km) BER BER : 10-9 with super FEC Output of Transmitter After 9,200km Transmission KDDI-SCS Proprietary Use Pursuant to Company Instructions

  16. Outline 1. Introduction 2. Configuration of Submarine Cable System 3. Transmission Technologies - Experimental Results 4. How to realize the cable system between Korea and China ? - Network configuration - Cost 5. Conclusion KDDI-SCS Proprietary Use Pursuant to Company Instructions

  17. Key Factors to Realize the System - Demand - Feasibility of transmission technologies - Location of cable landing station - Network configuration - Cost KDDI-SCS Proprietary Use Pursuant to Company Instructions

  18. Using the Existing Stations is preferable ! Comparison of New and Existing Cable Landing Station KDDI-SCS Proprietary Use Pursuant to Company Instructions

  19. Network Configuration Plan the optical cable system between Korea and China using the Existing cable landing stations. Taean (泰安) - Qingdao (青島) Distance : ~ 560km Taean : Exist. Qingdao : Exist. 560km 3 options of Network configuration KDDI-SCS Proprietary Use Pursuant to Company Instructions

  20. Option 1 Repeater System Option 2 Repeaterless System Option 3 Repeaterless System + Backhaul System Network Configuration New Station Taean : Exist. Qingdao : Exist. KDDI-SCS Proprietary Use Pursuant to Company Instructions

  21. Conditions for Cost Estimation Initial After Upgrade Note: 5 Repeaters are assumed in Repeater system (Option 1). KDDI-SCS Proprietary Use Pursuant to Company Instructions

  22. Price(M$) Cost for Initial Investment Initial KDDI-SCS Proprietary Use Pursuant to Company Instructions

  23. Price(M$) Cost for Upgrade After Upgrade (Ultimate) Initial KDDI-SCS Proprietary Use Pursuant to Company Instructions

  24. EDF for remote amplification WTU Up-stream WTU LTU with FEC for undersea cable system 1FP LTU with FEC for undersea cable system Down-stream Remote EDFPump Source Remote EDFPump Source LTU : Line Terminating Unit WTU : Wavelength Terminating Unit Up-stream Repeater WTU WTU LTU (compatible with terrestrial LTU) LTU (compatible with terrestrial LTU) 1FP Down-stream Terminal Equipment Bay Repeaterless System Repeater System KDDI-SCS Proprietary Use Pursuant to Company Instructions

  25. Twice ! The Number of Terminal Bay Repeater System LTU Bay Cable Qingdao Taean Repeaterless System Quigdao Taean New Station KDDI-SCS Proprietary Use Pursuant to Company Instructions

  26. Conclusion - Configuration for Repeater system and Repeaterless system were presented. - The three options of system between Korea and China were shown. - From the standpoint of the cable capacity and cost, Repeater system is more attractive for the system between Korea and China. KDDI-SCS Proprietary Use Pursuant to Company Instructions

  27. Please visit out web site! KDDI-SCS Home page : http//www.kddiscs.co.jp N.Takeda (Technical) : ntakeda@kddiscs.co.jp J.Matsuda (Commercial) : matsuda@kddiscs.co.jp Thank you! KDDI-SCS Proprietary Use Pursuant to Company Instructions

More Related