Self-seeded WDM-PON

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Transcript of 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?

  • 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 mandatoryTunable lasers

    using protocols or embedded-communication channelsusing pilot-tones

    Colorless seeded WDM-PONSelf-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

  • 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), 6774 (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

  • 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

  • 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 lossesModulation to directly impress data

  • 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 lossesModulation to directly impress dataSaturation to cancel recirculating modulation

    RSOA

  • ERMES

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

    Self-seeding principle of operation

    RSOA

  • ERMES

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

    Self-seeding principle of operation

    RSOA

  • 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 roundtripsThe spectrum takes one order of magnitude more roundtrips to steady stateThe spectrum presents a red shift

    red shift

  • 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

  • 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

  • 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

  • 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

  • FP7-ICT-2011-7

    Embedded Resonant 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.

  • 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

  • ERMES

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

    CD

  • 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

  • ERMES

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

    PI curves

  • ERMES

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

    Gaussian AWG various channels