O-band DWDM NRZ transmission of 100G-EPONgrouper.ieee.org/.../2016/01/lee_3ca_01a_0116.pdf · Slide...

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IEEE 802 Interim Session | 2016-01 |

O-band DWDM NRZ transmission of 100G-EPON

Hanhyub Lee, and Hwan Seok Chung, ETRI Nowook Park, KT

IEEE P802.3ca 100G-EPON Task Force January 18-22, 2016 Atlanta, GA, USA

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Eugene Dai, Cox Communications

Supporters

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Coexistence Requirements

Wavelength Plan

Line code

ONU Tuning of 25G ONUs

Spectrum needed

Five major topics[1]

[1] PMD work area topics, Frank Effenberger, conference call December 2015,

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LAN

WDM

10G-

EPON

10G-EPON

narrow

10G-EPON

reduced

10G-EPON

Regular

Coexistence Requirements: WDM Coexistence

Wavelength Plan : O-band

1260 1300 1360

100nm

40nm

20nm

20nm

Asymmetric

10G EPON

O-band is one of candidates for WDM coexistence considering that it is…

High chromatic dispersion tolerance over 25 Gb/s transmission

Mature technology, available today for 100GE, and Multi vendor

Easy to archive and available as laser diode

In the case of coexistence with asymmetric 10G-EPON, an available band is reduced because of 1G upstream.

Symmetric

10G EPON

Guard band

10 nm

100G-EPON

100G-EPON

100G-EPON

Limit

< 0.4 dB / km Case 1

Case 2

Case 3

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As survey results, most of the vendor provide 10G-EPON ONU transceivers based on DFB-LDs.

Asymmetric 10G-EPON ONU OTRx[2]

[1] http://www.optcore.net/optcore/html_products/Asymmetric-10G-EPON-ONU-Transceiver-Module-745.html

[2] http://www.sourcephotonics.com/sp_web/products/broadband-access/

[3] http://www.ligentphotonics.com/files/product-list-04.shtml

[4] http://www.xgiga.cn/Files/Product/ex-u1231-30d.pdf

Form factor

Data rate Tx

Data Rate Rx

Tx Rx Wavelength (Tx/Rx) Distance

Vendor A SFP+ 1.25 Gb/s 10.3 Gb/s DFB-LD APD 1310 nm / 1577 nm 20 km

Vendor B SFP+ 1.25 Gb/s 10.3 Gb/s DFB-LD APD 1310 nm / 1577 nm 30 km

Vendor C SFP+ 1.25 Gb/s 10.3 Gb/s DFB-LD APD 1310 nm / 1577 nm 30 km

Vendor D SFP+ 1.25 Gb/s 10.3 Gb/s DFB-LD APD 1310 nm / 1577 nm -

[2] http://www.ieee802.org/3/NGEPONSG/public/2015_11/ngepon_1511_hanhyub_1.pdf

http://www.optcore.net/optcore/html_products/Asymmetric-10G-EPON-ONU-Transceiver-Module-745.html















http://www.sourcephotonics.com/sp_web/products/broadband-access/





http://www.ligentphotonics.com/files/product-list-04.shtml






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A 25G APD receiver and an O-band SOA are commercial available1)

• XGM effect btw WDM channels will be analyzed.

APD Receiver sensitivity at BER 10-3 is -26 dBm.

Wavelength Plan: O-band power budget

-28 -24 -20 -16 -12 -8 -4 07

8

9

10

11

12

13

14

15

Gain

, N

F (

dB

)

Input power (dBm)

Gain

Noise Figure

1) SEI TECHNICAL REVIEW · NUMBER 78 · APRIL 2014

[25G APD receiver Sensitivity] [O-band SOA Gain / NF]

-28 -27 -26 -25 -24 -23 -22 -21 -209

8

7

6

5

4

3 APD #1

APD #2

-lo

g (

BE

R)

Sensitivity (dBm)

FEC

Input signal wavelength: 1309.5 nm

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For the 25G / 10G transmission, NRZ modulation formant is most suitable considering a simple configuration of transceiver.

O-band 4-channel tunability with 100-GHz channel spacing was possible by using temperature control.

It is expected that high power EMLs will be commercialized in order to satisfy 100G Ethernet LR4 specification (+4.5dBm)

Line Code: NRZ

ONU Tuning of 25G ONUs: Tunable 25G transmitter

Spectrum needed: DWDM

2

3

4

5

6

7-20 -19 -18 -17 -16 -15 -14 -13 -12 -11 -10

0 km

10 km

20 km

-lo

g (

BE

R)

Sensitivity (dBm)

Ch1 Ch2

Ch3 Ch4

[Output spectrum] [BER performance] [Optical eye diagram]

1290 1291 1292 1293 1294 1295 1296 1297-60

-50

-40

-30

-20

-10

0

10

Ou

pu

t p

ow

er

(dB

m)

Wavelength (nm)

100GHz

O-band 25G EML, NRZ 25 Gb/s, PRBS 231-1 O-band 25G EML, NRZ 25 Gb/s, PRBS 231-1

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We experimentally confirmed technical feasibility of tunable NRZ 25Gb/s transmission in O-band. • DWDM 4-channel tunability with 100-GHz channel spacing was possible

by using temperature control.

• Link budget of PRX30 will be achieved with the help of an APD Rx and a SOA.

O-band is a promising candidate for 25G NRZ transmission of 100G-EPON

Conclusions

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O-band DWDM NRZ transmission of 100G-EPONgrouper.ieee.org/.../2016/01/lee_3ca_01a_0116.pdf · Slide...

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