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WP-VD-T Transmission Techniques Project Review Meeting Brussels, 22-23 April 2008

WP-VD-T Transmission Techniques Project Review Meeting Brussels, 22-23 April 2008. Ioannis Tomkos AIT - Athens. Objectives. VD-T primarily aimed at: stimulating fostering coordinating the integration of research activities and the cooperation of those NoE researchers whose

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WP-VD-T Transmission Techniques Project Review Meeting Brussels, 22-23 April 2008

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  1. WP-VD-T Transmission TechniquesProject Review MeetingBrussels, 22-23 April 2008 Ioannis Tomkos AIT - Athens

  2. Objectives • VD-T primarily aimed at: • stimulating • fostering • coordinating the integration of research activities and the cooperation of those NoE researchers whose primary field of expertise is optical transmission for broadband networks

  3. Technical Scope • VD-T is concerned with transmission techniques in various segments of communications networks, but mostly backbone and metro • Among the many topics of interest: • 40 and 100 Gbit/s transmission (and beyond) • new formats, including multilevel, coherent and POLMUX • electrical mitigation of impaiments by pre-compensation (at TX) or post-compensation at (RX) • coordinated with JPE • optical mitigation/compensation, including regeneration • monitoring techniques (OSNR, CD, PMD, BER, non-linearity, etc.) and their integration into the network • coordinated with JPT

  4. Partners involved • PoliTO • TUW • ICCS/NTUA • UPC • UCL • UoA • IT • BME • FUB • TU/e • GET • PoliMI • KTH • UPVLC • FT 16. UoPelop 17. MULT 18. AIT 19. FPMs 20. UC3M 21. ORC-CC2 22. CTI 23. Fraunhofer 24. CTI 25. UC3M 26. Uessex 27.Huawei • UPCT • PUT • UniCamp • UniRoma1 • - in italics, collaborating institutions • the truly active partners were about 15 • the others were “interested” and keeping track of activities

  5. Advisory Board • Leader: Pierluigi Poggiolini (POLITO) - pierluigi.poggiolini@polito.it • Co-Leader: Periklis Petropoulos (ORC-CC2) - pp@orc.soton.ac.uk • Robert Killey (UCL) - r.killey@ee.ucl.ac.uk • Michel Morvan (ENST)- Michel.Morvan@enst-bretagne.fr • Erwan Pincemin (FT)- erwan.pincemin@orange-ftgroup.com • Josep Prat (UPC) - jprat@tsc.upc.es • Antonio Teixeira (IT) - teixeira@ua.pt • Ioannis Tomkos (AIT) - itom@ait.edu.gr

  6. Funding and Spending • The initial allocated budget for VD-T was 207 KEuro (all partners, two years) • Another 70 KEuro were distributed in Year 2 according to the point score system • With about 15 active partners, this means about 9 KEuro per active partner per year, on average • Already at T0+18 months, 147% of the allocated two-year total VD-T budget had been spent • Travel expenses to VD-T plenaries and workshops are chargedto the budget, too  funding was very limited  joint research was not mostly funded by Partners’ own funds, not by e-Photon/ONe+ money

  7. Main Joint Activities and Achievements • 4 plenary VD-T meetings • 4 technical workshops • 11 mobility actions • 42 joint papers • 1 joint patent (with JP-E) • a successful STREP project(SARDANA, with JPE-JPT) • a 200-page cooperative technical document(in D.VD-T.3)

  8. plenary: Athens (Greece) Sept. 2006 • very good participation (13 people, 10 partners) • discussion on point score system, joint activities • plenary: Paris Airport (France) Jan. 2007 • very good participation (13 people, 11 partners) • budget, technical TOCs for D.VD-T.3, 1st IST call • plenary: Brest (France) July 2007 • excellent attendance (17 people, 15 partners) • coordination of D.VD-T.3, 2nd IST call proposals • assessment of integration • plenary: Torino (Italy) Jan. 2008 • coordination of D.VD-T.4, assessment of results • “hand-off” to BONE WP15 Meetings

  9. Mobility Actions • The set-up of mobility actions was fostered by: • mobility offer/request general surveys: • 2 were made over the course of the project • many offers/requests were collected and circulated (about 30) • they were also included in D.VD-T.2 • technical workshops • focusing on potential cooperative topics • joint with JP-E and JP-T • 4 were held over the course of the project

  10. Mobility Actions • PoliTO -> UCLPierluigi Poggiolini, Gabriella Bosco - from 24.07.2006 until 28.07.2006 - WP: VD-T • FPMs -> UPVLCChristophe Caucheteur (short term mobility:24/06/06 - 01/07/06) - WP: JP-T & VD-T • UPVLC -> ORC-CC2Augustìn Pérez (from 15/01/07 to 26/01/07) - WPs: VD-T, JP-T, WP-L • UC3M -> GETCarmen Vázquez (from 29 to 31 January 2007) - WP: VD-T • ACREO (KTH) -> FTMarco Forzati (from 16/04/2007 to 04/05/2007) - WP: VD-T • UPC -> ITMireia Omella (29 Jan to 15 Feb 2007 and 15 July 2007 to 30 July 2007) - WPs: JP-E, VD-T • FUB/ISCOM -> ITDavide Forin (from 13 April to23 April 2007) - WPs: JP-T, VD-T • IT -> UPVLCRogerio Nogueira (from 21 March to 24 March 2007) - WPs: JP-T and VD-T • GET -> FTLaurent Dupont (from May 2, 2007 to October 31, 2007) - WP: VD-T • IT -> UPVLCTiago Manuel Ferreira Alves (10 Sept. 2007 - 23 Oct. 2007) - WP: JP-T and VD-T • PoliMi -> UPCDr. Karin Ennser, Prof. Stefano Taccheo - from February 2007 to July 2007) – WP: VD-A, VD-T, WP-L

  11. Technical Workshops • Joint VD-T, JP-E and JP-T Technical Workshop on “Joint Research and Mobility Proposals” • Paris, at project kick-off meeting, May 29th 2006 • 10 delivered talks, all presentations uploaded on the e-Photon/ONe+ website • Joint VD-T, JP-E and JP-T Technical Workshop on “Optical signal quality monitoring and impairment mitigation technologies” • Athens (at AIT), September 6th 2006 • 7 delivered talks, all presentations uploaded on the e-Photon/ONe+ website • Joint VD-T, JP-E and JP-T Technical Workshop on “Promoting Collaboration, Mobility and FP7 Consortia” • Barcelona (at UPC), February 27th 2006, • 8 delivered talks, all presentations uploaded on the e-Photon/ONe+ website • Joint VD-T, JP-E and JP-T Technical Workshop on “Advanced Transmission Technologies” • Brest (at ENST), July 16th 2007 • ultra-high speed transmission techniques (40 to 160 Gbit/s, 100 GE) • (ultra)-long-haul no-dispersion-compensation transmission • optical regeneration • advanced monitoring techniques • 7 delivered talks, all presentations uploaded on the e-Photon/ONe+ website

  12.  Joint Papers • Joint publications are perhaps the most significant integrationindicator, and integration is the main goal of NoEs • A full list of the joint papers, declared by Partners as VD-T’s, is reported in D.VD-T.4 • A total of 42 joint papers were published over the two years of the project • This is a good number and proves a high level of cooperation despite the low level of funding • Most were 2-Partner papers, but a considerable subset (13) had 3 or more Partners involved, proving intense multilateral cooperation • Among the 42 papers: • 10 ECOC papers (including one post-deadline with 3 partners involved) • 3 OFC, 7 CLEO, 7 ICTON, 2 LEOS • 4 were journal papers, and several of the conference contributions are currently being turned into journal papers

  13. Educational Activities • VD-T decided early on to favor and foster the set-up of a “teaching material repository” on optical transmission • A specific incentive was voted, in the form of extra “points” in the point-score system (explained later on) • The response from partners has been good, with several partners contributing very substantial amount of material • The material was transferred to WP-T for dissemination

  14. Contributions of Partners • In order to assess partners’ activity and to gain some objective measure of their involvement, a point-score system was set up • It was done jointly with JP-E and JP-T since many activities are shared and some papers are given shared credit • The point-score results were also used to distribute the extra budget in Year II • The Point-Score System evaluated: • Mobility actions • Joint Publications • points differentiate among international conferences, prominent conferences (ECOC, OFC) and journal publications • no points to single-partner publications • Taking part in meetings • Contributing to WP workshops • Contributing to teaching material

  15. Point-Score Results Activity progressed during Year II despite the fact that VD-T budget was exhausted by June/July 2007

  16. Deliverables and Milestones • All deliverables and milestones were fulfilled • Deliverable D.VD-T.3 was a large 200-page joint technical document • It was a substantial cooperative effort • The “writing group” paradigm was used for D.VD-T.3, with writing group leaders coordinating each group

  17. Deliverable D.VD-T.3 • D.VD-T.3 writing groups and related topics: • (a) coherent systems  Josep Prat • (b) regeneration  Periklis Petropoulos • (c) retro-fitting existing 10G systems for increased capacity  Pierluigi Poggiolini • (d) electronic dispersion and PMD compensation/mitigation  Dimitrios Klonidis • (e) OFDM techniques for access/MAN/Long-haul Robert Killey • (f) comparison between electronic and optical monitoring/compensation techniques Antonio Teixeira

  18. Scientific and Technical Impact • Joint papers represent the immediate agents of the NoE technical impact • VD-T’s joint papers report on new results in many areas including • adaptive equalization of propagation impairments and MLSE receivers for Metro and Regional • channel monitoring and PMD characterization • signal regeneration • wavelength conversion • advanced transmission techniques (coherent, 40G, 100GE, etc.) • others… • The D.VD-T.3 deliverable established the relevance and prospects of six key research topics in Transmission, providing guidance for research in the field • Longer-term technical impact derives from the cross-training of students whose background and technical expertise was largely improved due to their taking part in mobility exchanges • Cross-fertilization of ideas has clearly taken place among Partners

  19. Exploitation and Dissemination • Papers are the typical way of disseminating technical results • it is well-established and quite effective • (major) conference papers, in particular, provide immediate publicity of new results • VD-T papers (joint and single-partner) effectively disseminated the research results in the technical and industrial community • 1 patent was partially funded by VD-T • receiver equalization and mitigation techniques • exploitation attempts are underway • Further exploitation-dissemination is expected through the SARDANA STReP and the BONE NoE • VD-T has its natural continuation in BONE VCE-T • the proposal for VCE-T was written by the VD-T coordinator • the coordinator of VCE-T is the former deputy coordinator of VD-T • VCE-T includes all VD-T partners

  20. Final Comments: Durable integration • A habit of cooperation has been established, with tools and procedures to enact it • Several groups whose mutual knowledge was previously superficial, have gotten to know one another • Mutual awareness was strongly promoted through the VD initiatives (surveys, workshops, cooperative writing of deliverables, etc…) • This has led to several examples of successful integration among groups • Personnel that has travelled across groups has established very durable links • Mobility has also involved staff • The presentation of one joint FP7 proposals has been successful, others nearly were in the past • Also the creation of common teaching material will solidify cooperation and integration ties • EU money was effectively spent!

  21. EXTRA SLIDES Technical results from some of the cooperative research actions

  22. Technical Results • The joint technical collaborations have produced several important technical achievements • In the next slides, some of the activities are outlined • The first slide reports on an ongoing STReP that orginated from VD-T/JP-E/JP-T

  23. FP7 SARDANA project “Scalable Advanced Ring-based Passive Dense Access Network Architecture”Grant agreement no.: 217122(STREP), 3 years, 2.6 MEuroCall: FP7-ICT-2007-1 , Activity: ICT-1-1.1 - Network of the Future • The SARDANA project targets the extension of the limits of PONs, • Scalability is reached by means of the new adoption of remotely-pumped amplification, a WDM/TDM overlay and cascadable remote nodes in a new hybrid architecture; it allows smoother growth and migration while keeping the passiveness of the PON and reducing civil work investments. • The resulting network is able to serve more than 1000 and 4000 users with symmetric several hundred Mbit/s per user, spread along distances up to 100 km, up to 10Gbit/s. • Robustness is achieved by means of passive central-ring protection and new monitoring and electronic compensation strategies over the PON, intelligently supervising and controlling the impairments that are present or can be present in a 10Gbit/s extended PON.

  24. Wavelength Time ORC and UPVLCL-FROG measurement of XGM and XPM pulses from SOA-MZI • Collaborators: T.T.Ng, A.Pérez, S.Sales,D.J.Richardson and P.Petropoulos Dark Target pulses 7 ps pulses 1550nm • Phase and intensity • measurements • are extracted by • blind-deconvolution • of spectrogram↓ 1540nm Bright ‘Gate’ pulses • L-FROG performs low • power cross-correlation of • electrical ‘gate’ pulses and • optical target pulses to get • a spectrogram

  25. fmax= p I1=300mA Saturation I1=300mA Output pulses Output pulses CW CW SOA2 Port 3 I2=160mA Port 3 SOA1 SOA1 SOA2 SOA2 ORC and UPVLCL-FROG measurement of XGM and XPM pulses from SOA-MZI Cross Gain Modulation (XGM) Cross Phase Modulation (XGM)

  26. KTH/Acreo and France Télécom Transmission performance study of Asynchronous Phase Modulation • Three weeks visit at FT by a researcher from Acreo • Recirculating-loop experiment at 40 Gb/s • Evaluation of a cost effective technique to increase transmission distance of NRZ-OOK • Transmission of 16 channels over 2800 km achieved, using simple NRZ-OOK transmitters and one phase modulator • Experiment results submitted to CLEO 2008

  27. FPMs and UPVLCStudy of PMD and PDL of Bragg Gratings • Theme of the work: Study of the polarization properties (Polarization dependent loss and differential group delay) generated by fiber Bragg gratings • Accomplished work: • Development of a theoretical model to represent the polarization properties • Development of a measurement set-up (tunable laser source, polarizer, polarimeter) • Study of the influence of the grating physical parameters on the polarization properties evolutions and on the birefringence value • Applications: • Quantification of the impact of the PDL and DGD on optical fiber transmission systems • Use of the PDL and DGD evolutions for transverse strain sensing purposes

  28. FPMs and UPVLCStudy of PMD and PDL of Bragg Gratings • Involved persons = 7: • UPVLC: • Raimundo Garcia-Olcina (PhD Student) • S. Sales (Prof.) and J. Capmany (Prof.) • FPMs: • Sébastien Bette (PhD Student) & Christophe Caucheteur (PhD Student) • M. Wuilpart (Prof.) and P. Mégret (Prof.) • Publications = 13: • 3 journals (2 Photonics Technology Letters and 1 Optics Express) • 10 peer-reviewed conference proceedings (ECOC, BGPP, OFS, …) • Exchanges = 1: • 1 short term mission: Visit of C. Caucheteur at UPVLC to manufacture fiber Bragg gratings • This is an ongoing collaboration

  29. ENST and FT Modulation formats and EPMDC • Six months mobility: Prof. Laurent Dupont • Modulation formats and transmission: duobinary, electrical and optical PSBT at 40 Gb/s • recirculating loop (400 km) in WDM configuration • robustness to linear and non-linear impairments • PMD analysis • PMD characterization based on a frequency analysis of output polarization; higher PMD order characterization • PMD emulators have been tested and evaluated (FiberPro and NewRidge) • Two papers published and one in progress

  30. UCL-PoliTO-UPCMLSE techniques for dispersion compensation • Several joint papers over the course of 2 years: • 3 ECOC papers (one post-deadline) • 1 OFC paper • 2 ICTON papers • one submitted JLT paper • one joint patent • Proved that MLSE can compensate for any amount of dispersion, within a limited “asymptotic” penalty • Successful off-line linear experiment over 1,040 km • Successful off-line non-linear experiment over 800 km • Foreseen: use of SQRT microwave device to improve performance

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