View
225
Download
0
Category
Preview:
Citation preview
7/28/2019 ADVA Accordance Joint WS2012 03
http://slidepdf.com/reader/full/adva-accordance-joint-ws2012-03 1/13
Markus Roppelt, Klaus Grobe
07.02.2012
Overview on WDM-PON – theNG-PON Perspective
7/28/2019 ADVA Accordance Joint WS2012 03
http://slidepdf.com/reader/full/adva-accordance-joint-ws2012-03 2/13
Outline
• Requirements for NG-PON
• Short Presentation of different systems
• TDWM
• - -
© 2012 ADVA Optical Networking. All rights reserved.22
• WR-WDM-PON with tunable laser
• WS-WDM-PON with tunable filter
• Conclusion
7/28/2019 ADVA Accordance Joint WS2012 03
http://slidepdf.com/reader/full/adva-accordance-joint-ws2012-03 3/13
Requirements / Wish list
• High Client Count & Passive Reach
• Central-office consolidation
• Per-client capacity scaling for combined backhaul and access
• Up to (and beyond) 1 Gb/s for residential access• Higher for 3G, 4G backhaul and business access (GbE, 10GbE)
• ODN migration and co-existence
• Mi ration from currentl de lo ed X G-PON
© 2012 ADVA Optical Networking. All rights reserved.33
• Co-existence with deployed (X)G-PON
• CapEx / OpEx
• Cost-effective CapEx
• Power consumption and OLT form factor
• Technical complexity
• Direct detection vs. coherent heterodyne detection (UDWDM-PON)
• 10G high-power TRX vs. 1G medium-power TRX
7/28/2019 ADVA Accordance Joint WS2012 03
http://slidepdf.com/reader/full/adva-accordance-joint-ws2012-03 4/13
most discussed solutions in FSAN
• WDM-PON and hybrid TDM/WDM-PON (TWDM-PON)
• WDM-PON variants
• filtered (Wavelength-Routed) infrastructure• power-split infrastructure (Wavelength-Selected)
• WDM-PON technologies
© 2012 ADVA Optical Networking. All rights reserved.44
• (self-) seeded reflective devices (RSOA, REAM, IL-FP lasers)
• direct detection (DWDM-PON) or coherent heterodyne detection(UDWDM-PON)
• WDM-PON receivers can be based on per-wavelength, dedicated
access (WDMA) or shared access (primarily TDMA, also SCMA,CDMA, OFDMA) is possible
7/28/2019 ADVA Accordance Joint WS2012 03
http://slidepdf.com/reader/full/adva-accordance-joint-ws2012-03 5/13
TWDM-PON (Filter + Power-Splitter)
RN2
1:k
OLT
RN1
F i l t e rTX
TDMArray
RXTDMAArray
ONU
APD
S o C
Tuning
T D M A , F E C
MZM
T-LD
Filter
© 2012 ADVA Optical Networking. All rights reserved.55
• m e per-c en capac y an ransparency
• Optimum for migration and co-existence
• Client Count: very high number per feeder fiber
• Passive Reach: Limited due to high-power-budget transceivers
• Backhaul: Not suitable due to bandwidth sharing
• OpEx: Higher density and lower power consumption in the OLT
7/28/2019 ADVA Accordance Joint WS2012 03
http://slidepdf.com/reader/full/adva-accordance-joint-ws2012-03 6/13
WR-WDM-PON with RSOAs (Filter)
OLT
RN
A W GTX
Array
RXArray
ONU
RX
S o C
3dB
RSOA
IRZ
RZ
DS
IRZ
US
RZ
0 0
0 01 1
1 1
• low com lexit ONUs low cost er Gb s
© 2012 ADVA Optical Networking. All rights reserved.66
• Issues with legacy ODN migration and co-existence
• reduced bit rates due to seeded RSOA concept (reflections)
• Client Count: high , Spectrum efficiency due to wavelength re-use
• Passive Reach: high, Reach Extender possible
• Backhaul: suitable
• OpEx: Relatively low power consumption, mean OLT density
7/28/2019 ADVA Accordance Joint WS2012 03
http://slidepdf.com/reader/full/adva-accordance-joint-ws2012-03 7/13
WR-WDM-PON with Tunable Lasers(Filter)
ONU
OLT
RN
A W GTX
Array
RX
Array
L/C
Tunable LD
RX
Etalon,
Photo Diodes,ADC, FFT, DSP
C/LECC, DSP, DAC
Wavelength
Control Loop
ECC
S o C
• low complexity ONUs, low cost per Gb/s
© 2012 ADVA Optical Networking. All rights reserved.77
• Issues with legacy ODN migration and co-existence
• Client Count: high
• Passive Reach: very high, Reach Extender possible
• Backhaul: very suitable, scaling to very high per-client andtotal capacity possible
• OpEx: Relatively low power consumption, mean OLT density
7/28/2019 ADVA Accordance Joint WS2012 03
http://slidepdf.com/reader/full/adva-accordance-joint-ws2012-03 8/13
WS-WDM-PON with Tunable Lasers andTunable Filters (Power Splitter)
ONU
OLT
TXArray
RX
Array
L/C
Etalon,Photo Diodes,
ADC, FFT, DSP
BN
1:N
TF
Wavelength
Control LoopTunable LD
RX
C/LECC, DSP, DAC S
o C
• More complex and costly than WR variant due to tunable filter
© 2012 ADVA Optical Networking. All rights reserved.88
• Can support legacy ODN
• Client Count: high
• Passive Reach: high, Less passive reach than WR variant
• Backhaul: suitable, scaling to very high per-client and totalcapacity possible
• OpEx: Relatively low power consumption, mean OLT density
7/28/2019 ADVA Accordance Joint WS2012 03
http://slidepdf.com/reader/full/adva-accordance-joint-ws2012-03 9/13
Reach Overview
• Maximum NG-PON passive Reach (acc. to FSAN NG-PON2 Studyand OASE WP4) for a ODN with 64 users (without reachextender)
© 2012 ADVA Optical Networking. All rights reserved.99
7/28/2019 ADVA Accordance Joint WS2012 03
http://slidepdf.com/reader/full/adva-accordance-joint-ws2012-03 10/13
OpEx comparision
• PON Per-Client Power Consumption and OLT Client Density
4
5
6
7
n p e r C l i e n t [ W ] ONU
OLT
6,000
8,000
10,000
R a c k ( 4 4 H U )
© 2012 ADVA Optical Networking. All rights reserved.1010
TWDM-PONWR-WDM-PONG-PON0
1
2
3
P o w e r C o n s u m p
t i o
0
2,000
4,000
C l i e n t s p e r O
L
TWDM-PONWR-WDM-PONG-PON
7/28/2019 ADVA Accordance Joint WS2012 03
http://slidepdf.com/reader/full/adva-accordance-joint-ws2012-03 11/13
Overview table
TWDM WR-WDM-PON(seeded)
WR-WDM-PON(laser)
WS-WDM-PON(splitter)
High ClientCount ++ + + +/-
Passive Reach +/- + ++ +/-
© 2012 ADVA Optical Networking. All rights reserved.1111
Bac au ,business access
-- + ++ +
ODN migration ++ -- -- +
CapEx + + + +/-
OpEx + +/- +/- +/-
Technical
complexity
+ + + +/-
7/28/2019 ADVA Accordance Joint WS2012 03
http://slidepdf.com/reader/full/adva-accordance-joint-ws2012-03 12/13
Conclusion
• No system fits all needs
• Every System has advantages / disadvantages depending
on the focus
-
© 2012 ADVA Optical Networking. All rights reserved.1212
• TWDM-PON
• Focus on Mobile Backhaul
• WR-WDM-PON (laser or seeded)
• Focus on Passive Reach• WR-WDM-PON (laser)
7/28/2019 ADVA Accordance Joint WS2012 03
http://slidepdf.com/reader/full/adva-accordance-joint-ws2012-03 13/13
mroppelt@advaoptical.com
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 anyliability 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.
Recommended