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1OFC 2016, Anaheim CA (W4G.3)
Transmission of Nyquist-
shaped 32 GBaud PM-QPSK
over a production flex-grid
open line syste...
1. Introduction
2. Open line system
3. Layer 2/3 coherent linecard
4. Transmission results
5. Conclusions
OFC 2016, Anaheim CA (W4G.3)
Carrier
Enterprise
Cloud
Carrier
Enterprise
Cloud
OFC 2016, Anaheim CA (W4G.3)
OFC 2016, Anaheim CA (W4G.3)
Streamlined feature set:
• No electrical OTU switching
• No optical BOD (i.e., contentionless...
OFC 2016, Anaheim CA (W4G.3)
OFC 2016, Anaheim CA (W4G.3)
4000 km
OFC 2016, Anaheim CA (W4G.3)
span fiber km ps/nm amplifier span fiber km ps/nm amplifier
1 G.652 - SSMF 75 1275 EDFA 14 G....
OFC 2016, Anaheim CA (W4G.3)
CFP2-
ACO
TX
RX
DSP
CFP2-
ACO
TX
RX
DSP
CFP2-
ACO
TX
RX
DSP
CFP2-
ACO
TX
RX
DSP
CFP2-
ACO
TX
...
OFC 2016, Anaheim CA (W4G.3)
-14
-12
-10
-8
-6
-4
-2
0
0 10 20 30 40
dB
GHz
S21 (AGGREGATE)
-14
-12
-10
-8
-6
-4
-2
0
0 10...
OFC 2016, Anaheim CA (W4G.3)
-0.6
-0.4
-0.2
0.0
0.2
0.4
0.6
0.8
1.0
1.2
FIR TAP VALUES
-14
-12
-10
-8
-6
-4
-2
0
0 5 10 15...
OFC 2016, Anaheim CA (W4G.3)
ROADM ROADM
5x or 10xR R
colorless demuxcolorless mux
Layer 2/3 coherent line cards
CFP2-
ACO...
OFC 2016, Anaheim CA (W4G.3)
∆Q
∆Q
∆OSNR
∆OSNR
>3dB OSNR margin
OFC 2016, Anaheim CA (W4G.3)OFC 2016, Anaheim CA (W4G.3)
OFC 2016, Anaheim CA (W4G.3)
Thank you.
mark.filer@microsoft.com
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OFC 2016 (W4G.3) - Commodity Ethernet switch with integrated 100G coherent optics

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Transmission of Nyquist-shaped 32 GBaud PM-QPSK Over a Production Flex-grid Open Line System. Presented at OFC 2016.

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OFC 2016 (W4G.3) - Commodity Ethernet switch with integrated 100G coherent optics

  1. 1. 1OFC 2016, Anaheim CA (W4G.3) Transmission of Nyquist- shaped 32 GBaud PM-QPSK over a production flex-grid open line system Mark Filer1, Hacene Chaouch2, Jonathan Chu2, Raju Kankipati2, Tom Issenhuth1 1. Microsoft Corporation, Redmond WA, 2. Arista Networks, Santa Clara CA
  2. 2. 1. Introduction 2. Open line system 3. Layer 2/3 coherent linecard 4. Transmission results 5. Conclusions
  3. 3. OFC 2016, Anaheim CA (W4G.3) Carrier Enterprise Cloud Carrier Enterprise Cloud
  4. 4. OFC 2016, Anaheim CA (W4G.3)
  5. 5. OFC 2016, Anaheim CA (W4G.3) Streamlined feature set: • No electrical OTU switching • No optical BOD (i.e., contentionless) • No optical-layer restoration • Minimal meshiness
  6. 6. OFC 2016, Anaheim CA (W4G.3)
  7. 7. OFC 2016, Anaheim CA (W4G.3) 4000 km
  8. 8. OFC 2016, Anaheim CA (W4G.3) span fiber km ps/nm amplifier span fiber km ps/nm amplifier 1 G.652 - SSMF 75 1275 EDFA 14 G.655 - LEAF 90 450 EDFA+DRA 2 G.655 - LEAF 75 375 EDFA 15 G.655 - LEAF 65 325 EDFA 3 G.655 - LEAF 75 375 EDFA 16 G.655 - LEAF 70 350 EDFA 4 G.655 - LEAF 110 550 EDFA+DRA 17 G.655 - LEAF 100 500 EDFA+DRA 5 G.655 - LEAF 70 350 EDFA 18 G.655 - LEAF 75 375 EDFA 6 G.655 - LEAF 65 325 EDFA 19 G.655 - LEAF 75 375 EDFA 7 G.655 - LEAF 100 500 EDFA+DRA 20 G.652 - SSMF 70 1190 EDFA 8 G.655 - LEAF 65 325 EDFA 21 G.652 - SSMF 65 1105 EDFA 9 G.655 - LEAF 75 375 EDFA 22 G.655 - LEAF 75 375 EDFA 10 G.655 - LEAF 70 350 EDFA 23 G.655 - LEAF 75 375 EDFA 11 G.655 - LEAF 70 350 EDFA 24 G.655 - LEAF 120 600 EDFA+DRA 12 G.655 - LEAF 75 375 EDFA 25 G.652 - SSMF 75 1275 EDFA 13 G.655 - LEAF 65 325 EDFA Total 1945 13145
  9. 9. OFC 2016, Anaheim CA (W4G.3) CFP2- ACO TX RX DSP CFP2- ACO TX RX DSP CFP2- ACO TX RX DSP CFP2- ACO TX RX DSP CFP2- ACO TX RX DSP CFP2- ACO TX RX DSP switch chip switch chip switch chip
  10. 10. OFC 2016, Anaheim CA (W4G.3) -14 -12 -10 -8 -6 -4 -2 0 0 10 20 30 40 dB GHz S21 (AGGREGATE) -14 -12 -10 -8 -6 -4 -2 0 0 10 20 30 40 dB GHz TARGET RRC
  11. 11. OFC 2016, Anaheim CA (W4G.3) -0.6 -0.4 -0.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 FIR TAP VALUES -14 -12 -10 -8 -6 -4 -2 0 0 5 10 15 20 dB GHz S21∙RRC • Pluggable ACOs (OIF class II) • Allow operational ease and vendor diversity • Require precise S21 compensation • Linecard RF traces • CFP2-ACO connector • Electro-optic E/O and O/E
  12. 12. OFC 2016, Anaheim CA (W4G.3) ROADM ROADM 5x or 10xR R colorless demuxcolorless mux Layer 2/3 coherent line cards CFP2- ACO TX RX DSP CFP2- ACO TX RX DSP CFP2- ACO TX RX DSP CFP2- ACO TX RX DSP CFP2- ACO TX RX DSP CFP2- ACO TX RX DSP CFP2- ACOTX RX DSP ASE
  13. 13. OFC 2016, Anaheim CA (W4G.3) ∆Q ∆Q ∆OSNR ∆OSNR >3dB OSNR margin
  14. 14. OFC 2016, Anaheim CA (W4G.3)OFC 2016, Anaheim CA (W4G.3)
  15. 15. OFC 2016, Anaheim CA (W4G.3) Thank you. mark.filer@microsoft.com

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