FABULOUS. FDMA Access By Using Low-cost Optical network Units in Silicon photonics. S. Abrate
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1 FABULOUS FDMA Access By Using Low-cost Optical network Units in Silicon photonics S. Abrate
2 2 Project overview
3 Project genesis FP7-ICT Objective 3.5: Core and disruptive photonic technologies Application-specific photonic components and subsystems For access networks, the goal is affordable technology enabling 1-10 Gb/s data-rate per client 3
4 FABULOUS at-a-glance EU STREP contract Total cost: 4,3M EU contribution: 2,9M Project start: 1 st October 2012 Duration: 36 months 4
5 The consortium A balanced mix of universities, research centers, industries and telecom operators 5
6 The project motto A flexible architecture compatible with current infrastructures and low cost components based on silicon photonics: the keys for mass Fiber-To- The-Home ultra-broadband deployment. 6
7 7 The challenge
8 The architecture To demonstrate a FDMA PON architecture FDM on each DS wavelength f Unmodulated (for US) US 1 US N DS 1 DS N Modulated DS Downstream Optical Spectrum Upstream Optical Spectrum US 1 US N FDMA modulated US FDMA on each US wavelength f 8
9 The ONU exploiting the R-PON paradigm and Faraday rotation US i Tunable US/DS WDM DS i US i US i Reflective MZM DS RX i Modulation and 90 polarization rotation 9
10 Digital Signal Processing (DSP) The OLT allowing for simplified coherent receivers at the OLT side ECL CW laser PM fiber PBS xˆ ŷ SMF fiber Towards OLT PM fiber PM fiber Local Oscillator Signal Single Polarization Coherent Receiver ix, P t ( ) ix, P t ADC ( ) ADC i Y, P t ( ) ADC i Y, P t ( ) ADC 10
11 The silicon-photonics integrated ONU and producing an integrated revolutionary ONU based on silicon photonics, for low-cost devices. Reflective ONU with Faraday rotation xˆ WDM Filter 50 Ω bidirectional MZ modulator with travelling wave RF electrodes PD 50 Ω DS US Polarizing Beam Splitter 50 Ω PD ŷ WDM Filter RF Coupler US FDMA signal Monitor photodiodes 11
12 Exploitation potential Low-cost access devices are important for PON deployment: silicon photonics can be a breakthrough towards low-cost! The proposed architecture is flexible and scalable, for OPEX reduction. It is also compatible with current infrastructures. Large industries and telecom operators are part of the FABULOUS consortium. 12
13 13 The project organization
14 The project work-packages WP-COMP Optoelectronic Components WP-SYST System-Level Experiments WP-DEMO Field-Trials Testbeds Showcasing WP-DISS Dissemination Standardization 14
15 WP-SYST Definition of the detailed specifications for the components to be developed in WP-COMP Comparison of the FABULOUS architecture with other PON architectures in term of performances and cost FDMA-PON architecture demonstratio Firstly using discrete optoelectronic components Then inserting the integrated components coming from WP-COMP in the architecture Proof of the full architecture in relevant environment (dark-fiber test-beds) 15
16 WP-COMP Development of standalone optoelectronic components to be used at the ONU side of NG-PON Development of custom integrated ONU for the FDMA-PON architecture proposed by the project 16
17 WP-DEMO Sub-system demonstration: demonstration of the standalone components System demonstration: demonstration of the full architecture with the integrated ONU and real-time traffic 17
18 WP-DISS General dissemination: papers, website, newsletter Actions toward standardization, thanks to the partners in the FSAN organization 18
19 Acknowledgments The research leading to these results has received funding from the European Community's Seventh Framework Programme FP7/ under grant agreement n , titled: FABULOUS: FDMA Access By Using Low-cost Optical Network Units in Silicon Photonics WEB site: To contact the coordinator: info@fabulous-project.eu To contact the author: Silvio Abrate abrate@ismb.it 19
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