Active Technologies, The Sky is the limit

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The needs of fixed access operators are expanding beyond just providing more bandwidth. There are various other drivers for optical access, with different timeframes of need. Some of these can be met with existing fiber technologies, and some will require new technologies. The industry is considering several next generation PON architectures, each addressing the needs and timeframes to varying degrees. Authors: Ed Harstead & Michael Peeters

THE SKY IS THE LIMIT
WHAT TO EXPECT NEXT ?

Michael Peeters, Wireline CTO
FTTH Council München, February 2012

v1
COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED.
ALCATEL-LUCENT — INTERNAL PROPRIETARY — USE PURSUANT TO COMPANY INSTRUCTION

THE SKY IS THE LIMIT
BECAUSE WE CANNOT SEE BEYOND THE HORIZON

The 3 things we expect will drive technology

1.  Sharing the cost
2.  Saturating bandwidth demand
3.  Flexibility, but not at any cost

v1
COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED.
ALCATEL-LUCENT — INTERNAL PROPRIETARY — USE PURSUANT TO COMPANY INSTRUCTION

FLEXIBILITY
IN COST ALLOCATION
PTP PON
•  Favored if Figure of Merit is lowest cost per •  Favored if Figure of Merit is lowest cost per
dedicated Mb/s subscriber
•  Valid for smaller deployments with short loops •  Favored for higher peak bandwidths
•  Valid for all deployments
•  Strongly preferred for large COs, longer loops

Share&WW&Broadband&Subscriber&Additions&
(Dell'Oro)
100%

80%
PON
60% Ethernet/Other
40% VDSL
ADSL/SHDSL
20%
Cable>modem
0%
2010 2011 2012 2013 2014 2015

COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED.
ALCATEL-LUCENT — INTERNAL PROPRIETARY — USE PURSUANT TO COMPANY INSTRUCTION

BANDWIDTH
IS NO LONGER THE CAPTAIN
2010 2015 2020
GPON has enough bandwidth for FTTH beyond 2020
GPON

• Lower power dissipation
• Symmetrical bandwidth
• Resiliency at lower cost
10G PON

• ONU evolution
• Reduced opex
TWDM PON-
Drivers for 10G PON ready ONU
•  FTTB/DSLAM
•  FTTBusiness NGPON2 (40G PON)
•  More bandwidth at (Plan)
same cost as GPON Drivers for NGPON2
(not yet foreseeable) •  More bandwidth for FTTB/
DSLAM/Business
•  CO consolidation

• Non-FTTH bandwidth drivers for 10G PON are low volume Market needs are:
•  Bandwidth-independent
• Non-FTTH bandwidth drivers for NGPON2 are speculative •  More customer-specific

COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED.
ALCATEL-LUCENT — INTERNAL PROPRIETARY — USE PURSUANT TO COMPANY INSTRUCTION

NGPON2 TRADE-OFFS
40G TDM PON λ-stacked XG-PON One λ per subscriber
“XLG-PON” “TWDM PON” WDM PON
40x1G down
40G down ONU 4x10G down ONU ONU
ONU ONU ONU
OLT OLT OLT
ONU ONU ONU
10G up ONU 4x2.5G up ONU ONU
No -agility req’d -agile, 4 s 40x1G up -agile, 40 s
ODN

Non-compatible, less flexible.
Backwards-compatible, power-splitting Loss ~insensitive to split ratio.

Bandwidth More on-demand bandwidth
Symmetrical bandwidth

Higher risk in 2015 Lower risk in 2015 Higher risk in 2015
Implementation

Higher speed components
•  In the short run, higher speed components cost more, but reduce over time

More components and higher complexity
•  Over time, cost will be determined by the no. of components and complexity

COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED.
ALCATEL-LUCENT — INTERNAL PROPRIETARY — USE PURSUANT TO COMPANY INSTRUCTION

NGPON2 COST EVOLUTION
QUALITATIVE PICTURE
If we needed NGPON2 today:
• XLG-PON would be the most expensive: cost of 40G components and higher optical power
• TWDM PON would the lowest cost: leverages existing XG-PON technology

Cost cross-over between XLG-
PON and TWDM-PON
Cost%per%subscriber

WDM$PON
TWDM)PON
XLG)PON

At some point in the future:
Time •  XLG-PON will be the least
expensive: fewest components,
lowest complexity
Point for BW per
Today lambda shift ?
6
COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED.
ALCATEL-LUCENT — INTERNAL PROPRIETARY — USE PURSUANT TO COMPANY INSTRUCTION

TRANSITION SCENARIO
TWO GENERATIONS IN ONE
XG-PON
10G down
ONU
•  Day 1: XG-PON with -agile ONUs: OLT
ONU
2.5G up
-agile, 4 s

•  Future evolution to 40G PON 40G -TWDM-PON
-  Replace XG-PON OLT line card TWDM- 4x10G down ONU
PON line card with 4- capability
ONU
-  Existing ONUs tune to correct OLT
ONU
ONU
4x2.5G up
-agile, 4 s

7
COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED.
ALCATEL-LUCENT — INTERNAL PROPRIETARY — USE PURSUANT TO COMPANY INSTRUCTION

THE FORK IN THE ROAD
AND THE PATH FORWARD

40G/10G XLG$PON( TWDM(PON( WDM(PON(
Capacity(

Drivers: Drivers: Drivers:
•  Ultimately the lowest cost, •  Lowest risk for 2015 •  Large scale FTTBusiness:
but highest risk for 2015 volume deployment ≥1 Gb/s dedicated
volume deployment •  Transition from existing symmetrical bandwidth
•  Highest OLT port density XG-PON deployments (high peak bandwidths not
•  Legacy ODN compatibility •  Legacy ODN compatibility important)
•  SuperPONs (ultra-long
reach/ultra-high split)
10G/2.5G XG$PON(

2.5G/1.25G GPON(
8
COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED.
ALCATEL-LUCENT — INTERNAL PROPRIETARY — USE PURSUANT TO COMPANY INSTRUCTION

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This document provides an overview and analysis of GPON (Gigabit-capable Passive Optical Network) standards and technologies. It describes the basic concepts of PON networks including network architecture, upstream and downstream data transmission principles, and frame structures. It also analyzes key GPON standards from standards bodies like ITU-T and compares GPON to EPON. The document aims to give the reader an understanding of GPON networks, standards, and technologies.

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This document provides an overview of GPON (Gigabit-capable Passive Optical Network) technology. It discusses the basic concepts and working principles of PON networks, comparing GPON to other PON standards like EPON. The document also analyzes key GPON standards and specifications, describes the GPON network model reference, and reviews basic GPON performance parameters and network protection modes.

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C.pdf

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The document discusses Gigabit Passive Optical Network (GPON) technology. It provides an introduction to GPON, describing key components like the Optical Line Terminal (OLT) and Optical Network Unit (ONU). It explains the principles of GPON operation, including downstream broadcast and upstream TDMA multiplexing. It also covers topics like fiber optic cables, splitters, transmission power budgets, and GPON cabinet and ONU models. Dynamic Bandwidth Assignment (DBA) is discussed as the method for controlling upstream bandwidth allocation in GPON networks.

Gpon fundamentals

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The document discusses GPON (Gigabit-capable Passive Optical Network) technology. It provides an overview of GPON standards and network architecture. GPON uses wavelength division multiplexing and TDMA to transmit data over a single fiber. The key standards are ITU-T G.984 series, which define aspects like transmission rates, frame structure, and OMCI management. A GPON network provides various access methods like FTTH, FTTB, and FTTC to support broadband services.

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This document provides an overview of GPON (Gigabit-capable Passive Optical Network) fundamentals from Huawei Technologies. It begins with basic concepts of PON networks, including the architecture and working principles. It then covers key topics like GPON standards, performance parameters, protection modes, and frame structure. The document is intended to give readers a preliminary understanding of GPON networks.

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This document provides an overview of GPON (Gigabit-capable Passive Optical Network) technology, including: - GPON uses wavelength division multiplexing over a single fiber for bi-directional communication between an OLT and multiple ONUs. - Downstream transmission is broadcast while upstream uses TDMA to separate signals from multiple users. - Standards like ITU-T G.984 specify areas like transmission speeds, frame structure, and ONU management for GPON. - The document discusses GPON network architectures, components, protection methods, and multiplexing to transport different services.

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Active Technologies, The Sky is the limit

1. THE SKY IS THE LIMIT WHAT TO EXPECT NEXT ? Michael Peeters, Wireline CTO FTTH Council München, February 2012 v1 COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED. ALCATEL-LUCENT — INTERNAL PROPRIETARY — USE PURSUANT TO COMPANY INSTRUCTION

2. THE SKY IS THE LIMIT BECAUSE WE CANNOT SEE BEYOND THE HORIZON The 3 things we expect will drive technology 1.  Sharing the cost 2.  Saturating bandwidth demand 3.  Flexibility, but not at any cost v1 COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED. ALCATEL-LUCENT — INTERNAL PROPRIETARY — USE PURSUANT TO COMPANY INSTRUCTION

3. FLEXIBILITY IN COST ALLOCATION PTP PON •  Favored if Figure of Merit is lowest cost per •  Favored if Figure of Merit is lowest cost per dedicated Mb/s subscriber •  Valid for smaller deployments with short loops •  Favored for higher peak bandwidths •  Valid for all deployments •  Strongly preferred for large COs, longer loops Share&WW&Broadband&Subscriber&Additions& (Dell'Oro) 100% 80% PON 60% Ethernet/Other 40% VDSL ADSL/SHDSL 20% Cable>modem 0% 2010 2011 2012 2013 2014 2015 COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED. ALCATEL-LUCENT — INTERNAL PROPRIETARY — USE PURSUANT TO COMPANY INSTRUCTION

4. BANDWIDTH IS NO LONGER THE CAPTAIN 2010 2015 2020 GPON has enough bandwidth for FTTH beyond 2020 GPON • Lower power dissipation • Symmetrical bandwidth • Resiliency at lower cost 10G PON • ONU evolution • Reduced opex TWDM PON- Drivers for 10G PON ready ONU •  FTTB/DSLAM •  FTTBusiness NGPON2 (40G PON) •  More bandwidth at (Plan) same cost as GPON Drivers for NGPON2 (not yet foreseeable) •  More bandwidth for FTTB/ DSLAM/Business •  CO consolidation • Non-FTTH bandwidth drivers for 10G PON are low volume Market needs are: •  Bandwidth-independent • Non-FTTH bandwidth drivers for NGPON2 are speculative •  More customer-specific COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED. ALCATEL-LUCENT — INTERNAL PROPRIETARY — USE PURSUANT TO COMPANY INSTRUCTION

5. NGPON2 TRADE-OFFS 40G TDM PON λ-stacked XG-PON One λ per subscriber “XLG-PON” “TWDM PON” WDM PON 40x1G down 40G down ONU 4x10G down ONU ONU ONU ONU ONU OLT OLT OLT ONU ONU ONU 10G up ONU 4x2.5G up ONU ONU No -agility req’d -agile, 4 s 40x1G up -agile, 40 s ODN Non-compatible, less flexible. Backwards-compatible, power-splitting Loss ~insensitive to split ratio. Bandwidth More on-demand bandwidth Symmetrical bandwidth Higher risk in 2015 Lower risk in 2015 Higher risk in 2015 Implementation Higher speed components •  In the short run, higher speed components cost more, but reduce over time More components and higher complexity •  Over time, cost will be determined by the no. of components and complexity COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED. ALCATEL-LUCENT — INTERNAL PROPRIETARY — USE PURSUANT TO COMPANY INSTRUCTION

6. NGPON2 COST EVOLUTION QUALITATIVE PICTURE If we needed NGPON2 today: • XLG-PON would be the most expensive: cost of 40G components and higher optical power • TWDM PON would the lowest cost: leverages existing XG-PON technology Cost cross-over between XLG- PON and TWDM-PON Cost%per%subscriber WDM$PON TWDM)PON XLG)PON At some point in the future: Time •  XLG-PON will be the least expensive: fewest components, lowest complexity Point for BW per Today lambda shift ? 6 COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED. ALCATEL-LUCENT — INTERNAL PROPRIETARY — USE PURSUANT TO COMPANY INSTRUCTION

7. TRANSITION SCENARIO TWO GENERATIONS IN ONE XG-PON 10G down ONU •  Day 1: XG-PON with -agile ONUs: OLT ONU 2.5G up -agile, 4 s •  Future evolution to 40G PON 40G -TWDM-PON -  Replace XG-PON OLT line card TWDM- 4x10G down ONU PON line card with 4- capability ONU -  Existing ONUs tune to correct OLT ONU ONU 4x2.5G up -agile, 4 s 7 COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED. ALCATEL-LUCENT — INTERNAL PROPRIETARY — USE PURSUANT TO COMPANY INSTRUCTION

8. THE FORK IN THE ROAD AND THE PATH FORWARD 40G/10G XLG$PON( TWDM(PON( WDM(PON( Capacity( Drivers: Drivers: Drivers: •  Ultimately the lowest cost, •  Lowest risk for 2015 •  Large scale FTTBusiness: but highest risk for 2015 volume deployment ≥1 Gb/s dedicated volume deployment •  Transition from existing symmetrical bandwidth •  Highest OLT port density XG-PON deployments (high peak bandwidths not •  Legacy ODN compatibility •  Legacy ODN compatibility important) •  SuperPONs (ultra-long reach/ultra-high split) 10G/2.5G XG$PON( 2.5G/1.25G GPON( 8 COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED. ALCATEL-LUCENT — INTERNAL PROPRIETARY — USE PURSUANT TO COMPANY INSTRUCTION

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