António Teixeira Instituto de Telecomunicações

1. WP-JP-T on Dynamic and distributed optical monitoring and equalizationFinal Review MeetingBrussels, 22 April 2008 António Teixeira Instituto de Telecomunicações

2. WP-JPT: JP on Dynamic and distributed optical monitoring and equalization • Scope • Identification, Development, Improvement and Rating • Monitoring and compensation (M&C) techniques • Implementation of a Management layer for monitoring purposes • Identification, Development, Improvement, Development and Adaptation of Impairment Constraint based Routing (ICBR) • Leader • Antonio Teixeira, Instituto de Telecomunicações • Advisory Board • Michele Gadonna (GET), Tibor Cinkler (BME), Gerald Franzl (TUW), Ioannis Tomkos (AIT), Irene Joindot (FT), Augustin Grillet (MULT), Periklis Petropoulos (ORC-CC2) • Partners involved • 16 Partners • IT, FUB/ISCOM, PoliMi, UC3M, UPC, UPVLC, GET, FT, FPM, MULT, ORC-CC2, UCL, TUW, TELEFER, AIT, BME

3. M&C- Monitoring and Control NMS- Network Management System Depending on Support action approval Test bed trial of the concept Within E1+ program Collection of existing Constrained based Routing Algorithms Redefinition of existing/new Constrained Based Routing Algorithms Implementation and redefinition of the Algorithms in the boards ROADM Assessment and comparison Board assembly and test Definition of a basic protocol for interaction between the M&C and The NMS Definition of a trial board to exchange information M&C-NMS Implementation and redefinition of the Boards Hardware Implementation of M&C Collection of existing optical monitors and compensators Optimization and design of new/existing compensators/regenerators (PMD, Power, GVD, X-talk, FWM, 1R, 2R, etc) M&C Performance rating JP-T organization Thematic Areas: Vertical-oriented Organization Strategy

4. Evaluation and Improvement of an OPM Prototype Remote, Tunable, and Raman gain assisted OTDR monitoring GVD and PMD Monitoring with SOA OTDR monitoring implemented in SARDANA test bed WDM Amplifier with M&C Capabilities Chromatic Dispersion Compensator using Ring Resonators JP-T: M&C Physical Layer Development / Improvement • 17 Monitoring Methods • 9 Compensation Methods • Experimental validation of M&C State-of-the-Art M&C Collection • More than 50 pages in D.JP-T.1 • Complemented in D.JP-T.2 Rating • Novel and Useful Monitoring Techniques Rating • General Comparison Criteria • Also, Optical vs. Electronic Implementation • OPM Prototype • SARDANA test bed

5. Functionality of an Enhanced Optical Supervision System Concept block diagram for the sensors/actuators support network Hardware block diagram of sensor/actuator boards Experimental setup of support network with three nodes Preliminary Experimental results of the test network with three nodes JP-T: Interface Layer Trial Boards for the Support Network of Sensors/Actuators

6. Crosstalk in OXCs Measured filtering profiles Broadcast-and-select functional representation JP-T: Intermediate Layer Physical WSS Modeling • Flexible representation of WSS and OXC • Accurate physical models to face complex automated test procedures for wavelength switching operation. • Mixed “physical + logical” modelling lead to plausible device representation • Allows to evaluate different node impairments for various loads and wavelength routing tables. Black-box representation Simulation set-up Power penalty measurements for different crosstalk source count (N)

7. Analysis of physical database reliability and impact on OPM needs Candidate paths reduction based on hops limit Classes of Routing Options Optimum vs. Feasible Path JP-T: Network Layer Mutual Impact of Physical Impairments and Traffic Groming • Performance Enhancement through M&C Management • Impairment-aware RWA algorithms • Multi-constraint routing • Optical Path Feasibility • Implementation Viability of OPM • Operator Point of View • Analysis of OPM needs and impact

8. JP-T: Integration of Efforts Final Joint Paper is an example of the transverse character imprinted to this project: To coordinate efforts from the different network layers into unified solutions Partners involved:IT, TUW, AIT, Patras Univ., BME, ISCOM, UPC, GET-ENST, UC3M, FT 5 Mobility Actions occurred One between FPMs and UPVLC One between ORC and SSSUP One between IT and UPVLC Two between IT and ISCOM External Relations: - NICT (Japan), IREE (Czeck Republik), VUB (Belgium), ISIS NoE - Other partners in the field gathered for FP7 proposed projects Mare Nostrum and Sardana: Konica (Italy), Labor (Italy), Tellabs (Finland), Intracom (Greece).

9. JP-T: Towards the Demonstrator The SARDANA network, from partner UPC, was proposed to be one possible network to incorporate the final setup of the dynamic and distributed network with active monitoring and compensation capabilities. However due to unpredicted delays in the external sources for elaborating the boards the trial was delayed and will be performed in a date posterior to the end of E1+. Efforts are also being made to include this in a more complex, non ring based, network.

10. Main Achievements • N° meetings and workshops (Target 2 years: 3) • 3 Meetings and 3 Workshops • N° Joint papers (Target 2 years: 10) • 27 published in major conferences and journals • Public deliverables (Target 2 years: 3) • 2 deliverables: D.JP-T.1 and D.JP-T.3 • Shared infrastructures • 3 • N° mobility actions (Target 2 years: 8) • 5

11. Achievements: Technical Impact • The rating and collection of M&C techniques provided the basis for partners to further develop and improve the solutions: already existing input to other projects, like SARDANA and BONE. • The field test of several M&C for transparent networks with dynamic behavior provided significant developments within this research field and opened the window for network performance improvement and optimization. • The study and validation of new/improved ICBR algorithms and switching device modeling permitted to uncover solutions for new challenges arising in meshed networks with complex management and routing needs. • The field test of NMS, with ICBR, specifically developed software and sensor/actuator hardware, on a trial test bed provided the partners the possibility to test their concepts, theoretical approaches and simulation results. • Several papers were produced in the field, culminating with the final joint paper on a vertical and integrated perspective on dynamic monitoring and compensation for optical networks. • 3 STREPs found inspiration for part of the topics and consortium inside JP-T – Mare Nostrum (not funded) Setebo(not funded) and Sardana (in progress).

12. Final comments • The partners that are participating are quiteresponsive • Many were the technical contributions from the workgroup • The project achieved the granted targets, at least in an acceptable level. • The non granted targets were not fully fulfilled but the basis are there for an implementation in the short term, if the partners are willing to.