self-seeded wdm-pon

19
ERMES Self-seeded WDM-PON P. Parolari, L. Marazzi, M. Brunero, M. Martinelli DEIB, Politecnico di Milano, Milano, Italy WS5 - Is NG-PON2 an ultimate access solution? Is there anything coming afterwards?

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Page 1: Self-seeded WDM-PON

ERMES

Self-seeded WDM-PONP. Parolari, L. Marazzi, M. Brunero, M. Martinelli

DEIB, Politecnico di Milano, Milano, Italy

WS5 - Is NG-PON2 an ultimate access solution? Is there anything coming afterwards?

Page 2: Self-seeded WDM-PON

ERMES

WS5 - Is NG-PON2 an ultimate access solution? Is there anything coming afterwards?

The wavelength resource

The wavelength resource is taken for granted in NG-PON

Wavelength control and management are mandatory�Tunable lasers

�using protocols or embedded-communication channels�using pilot-tones

�Colorless seeded WDM-PON�Self-seeded WDM-PON

ONT

ONT

ONT

….

OLT

Tunable

4x10G DS

4x2.5G US

TWDM-PON

ONU

ONU

ONU

….

WDM-PtP

OLT

OLT

OLT

….

AW

G

AW

G

λ

λ’

Page 3: Self-seeded WDM-PON

ERMES

WS5 - Is NG-PON2 an ultimate access solution? Is there anything coming afterwards?

Self-seeded WDM-PON

Self-seeding provides:

�colourless transmitters

�RSOAs [E. Wong et al., J. Lightwave Technol. 25(1), 67–74 (2007)]

�FPs [M. Presi et al, IEEE Photon. Technol. Lett., 241(17),1523-1526 (2012)]

�automatic and passive wavelength assignment

�determined by the plugged WDM multiplexer channel

�robust control

�determined by the physical mechanism associated

with cavity build-up

Page 4: Self-seeded WDM-PON

ERMES

WS5 - Is NG-PON2 an ultimate access solution? Is there anything coming afterwards?

Self-seeding principle of operation

The active element has a triple role:�Gain to make up for cavity losses

Active element

RSOA

Page 5: Self-seeded WDM-PON

ERMES

WS5 - Is NG-PON2 an ultimate access solution? Is there anything coming afterwards?

Self-seeding principle of operation

Active element

RSOA

The active element has a triple role:�Gain to make up for cavity losses�Modulation to directly impress data

Page 6: Self-seeded WDM-PON

ERMES

WS5 - Is NG-PON2 an ultimate access solution? Is there anything coming afterwards?

Self-seeding principle of operation

The active element has a triple role:�Gain to make up for cavity losses�Modulation to directly impress data�Saturation to cancel recirculating modulation

RSOA

Page 7: Self-seeded WDM-PON

ERMES

WS5 - Is NG-PON2 an ultimate access solution? Is there anything coming afterwards?

Self-seeding principle of operation

RSOA

Page 8: Self-seeded WDM-PON

ERMES

WS5 - Is NG-PON2 an ultimate access solution? Is there anything coming afterwards?

Self-seeding principle of operation

RSOA

Page 9: Self-seeded WDM-PON

ERMES

WS5 - Is NG-PON2 an ultimate access solution? Is there anything coming afterwards?

Cavity build up

Output optical power evolution during first roundtrips

Output optical spectrum evolution during build up

roundtrip time

�Output optical power reaches steady state in less than 10 roundtrips�The spectrum takes one order of magnitude more roundtrips to steady state�The spectrum presents a red shift

red shift

Page 10: Self-seeded WDM-PON

ERMES

WS5 - Is NG-PON2 an ultimate access solution? Is there anything coming afterwards?

Self-seeded source quality

Multimode source: thousands of modes for the short cavities to hundreds of thousands for the km-long onesRIN ≈20 dB better than spectrally sliced broadband optical sources

≈15 dB worse DFB

Page 11: Self-seeded WDM-PON

ERMES

WS5 - Is NG-PON2 an ultimate access solution? Is there anything coming afterwards?

Recent results C-bandOB [dB] @ BER 10-3

2.5

Gb

/s

Drop fiber BtB 25 km 50 km 75 km

10 m 34 33.3 32.6 27

1 km 32.4 32 29.5

5 km 30 28

10 G

b/s

Drop fiber

52 km NZDF-

32 km NZDF-

52 km NZDF-+8 km SSMF

BtB 20 km DSF

8 km NZDF+

25 km NZDF+

420 m -300 -185 -160 0 10 23 72

Dispersion load [ps/nm] @ BER 3 10-3

Best result @ -29 dBm received power

Q. Deniel et al. "Self-seeded RSOA based WDM-PON transmission capacities” OFC 2013, Anheim CA

L. Marazzi et al. “Up to 10.7-Gb/s High-PDG RSOA-based Colourless Transmitter for WDM Networks” IEEE Photon. Technol. Lett, 25, 637, 2013

Page 12: Self-seeded WDM-PON

ERMES

WS5 - Is NG-PON2 an ultimate access solution? Is there anything coming afterwards?

Recent results O-band

� No chromatic dispersion penalty

�Optical power budget limited

2.5

Gb

/s

Drop fiber Feeder fiber BER

10 m 90 km <1�10-5

10 km 50 km <1 �10-4

26 km 40 km <3 �10-410

Gb

/s

Drop fiber Feeder fiber BER

10 m 52 km 3 �10-4

420 m 40 km 7 �10-4

1 km 40 km 3 �10-3

G. Simon et al. “70km external cavity DWDM sources based on O-band self seeded RSOAs for transmissions at 2.5Gbit/s” OFC 2014, San Francisco CA

P. Parolari et al, “10-Gb/s Operation of a Colorless Self-Seeded Transmitter Over More Than 70 km of SSMF”, IEEE Photon. Technol. Lett, 26. 599, 2014

Page 13: Self-seeded WDM-PON

ERMES

WS5 - Is NG-PON2 an ultimate access solution? Is there anything coming afterwards?

Conclusions

RSOA based self-seeded transmitters allow easy wavelength

control and management

�Colourless: avoiding external seeding sources and associated

Rayleigh scattering

�Self-tuning: robust passive and automatic wavelength

assignment

�Multimode optical carrier with better quality than spectrally sliced

broadband optical sources

�Demostrated long cavity performance up to 10 Gb/s over more

than 40-km in O and C-band

Page 14: Self-seeded WDM-PON

FP7-ICT-2011-7

EmbeddedResonant and ModulablE Self-tuninglaser cavity for next generation access network transmitter

ERMES

visit www.ermes-project.eu

ERMES talk @ ECOC 2014

Tu.1.7.4 Build-up Analysis of an RSOA-based Self-seeded Transmitter L. Marazzi et al.

Tu.3.2.5 125km Long Cavity based on Self Seeded RSOAs Colorless Sources for 2.5Gbit/s DWDM Networks F. Saliou et al.

P.7.20 Experimental evaluation of burst mode operation of a RSOA-based self-seeded transmitter M. Brunero et al.

P.7.14 Infrastructure impact on transmission performance of self-seeded DWDM colorless sources at 2.5Gbps G. Simon et al.

Page 15: Self-seeded WDM-PON

ERMES

WS5 - Is NG-PON2 an ultimate access solution? Is there anything coming afterwards?

eye diagrams

ER=4.3 dB

10 Gb/s2.5 Gb/s

ER=5 dB

Page 16: Self-seeded WDM-PON

ERMES

WS5 - Is NG-PON2 an ultimate access solution? Is there anything coming afterwards?

CD

Page 17: Self-seeded WDM-PON

ERMES

WS5 - Is NG-PON2 an ultimate access solution? Is there anything coming afterwards?

Polarization retracing topology

RSOA with very high modulation performance may show HPDGNecessary a polarization retracing topology

Page 18: Self-seeded WDM-PON

ERMES

WS5 - Is NG-PON2 an ultimate access solution? Is there anything coming afterwards?

PI curves

Page 19: Self-seeded WDM-PON

ERMES

WS5 - Is NG-PON2 an ultimate access solution? Is there anything coming afterwards?

Gaussian AWG various channels