Paolo Savio

Overview of the FABULOUS EU Project: Final System Performance Assessment With Discrete Components

In this paper, we present the most comprehensive system demonstrator realized so far inside the FABULOUS project, an EU 7th Framework Program European research project. The architecture proposed in FABULOUS is based on frequency division multiplexed PON and uses a self-coherent and reflective approach in the upstream. The demonstration presented in this paper uses discrete optoelectronics components. We will show system experiments realized with five active optical network units, together with the emulation of other 27 ONUs ASE noise, demonstrating that such network is capable of an upstream transmission of 32 Gb/s over 40 km of dark fiber and an attenuation of 31 dB, in compliancy with ODN class N2 of the latest PON standards. In addition, we will demonstrate, thanks to the flexibility of frequency multiplexing, that the network can adapt its performances to the link conditions, achieving higher aggregate bit rates or higher losses depending on the link quality that every user in the network experiences. To conclude, we will investigate on the feasibility of the required digital signal processing onto FPGA or ASIC platforms.

System aspects of the FDMA PON conceived within the FABULOUS European project

We experimentally demonstrate a FDMA-PON system targeting 20 Gbps per wavelength in the upstream, using a real-time FPGA-based transmitter and low-speed baseband DSP, and 39 Gbps in the downstream using a new resources allocation algorithm with 11.5GHz electrical bandwidth, in the framework of the EU research project FABULOUS.

Reflective FDMA-PON with 32 Gbps upstream capacity per wavelength and more than 32 dB ODN loss

We demonstrate 32 Gbps per wavelength upstream record capacity for a FDMA-PON over 37 km of installed fiber and 32 dB ODN loss, adopting an innovative ONU based on a reflective Mach Zehnder modulator.

Real-time transmission experiments for the FDMA-PON conceived within FABULOUS european project

The FABULOUS EU project proposes a solution for NG-PON2 based on a WDM FDM/FDMA approach, and aims at realizing a fully integrated silicon-photonics ONU. The effectiveness of the architecture is being proven with discrete components, and in this paper we report about the preliminary results achieved with real-time traffic transmission.

Self-coherent reflective FDMA-PON for next generation access and LAN architectures

In this paper we will give an insight to the FABULOUS European Project, pertaining to the 7th Framework Program, showing a self-coherent passive optical network that employs Frequency Division Multiplexing and is compatible with legacy infrastructures and NG-PON2 power budget specifications, while exceeding them in terms of bit-rate. FABULOUS also envisions an innovative Optical Network Unit, based on a reflective Mach-Zehnder modulator, that is suitable for full integration in silicon-photonics, for realizing low-cost customer premises equipment, indispensable for a massive deployment of the solution. The novelty of this work compared to previous papers in the same areas is in focusing on different possible applications having different physical layer requirements, including the recent trend that propose high-capacity PON as an alternative solution for next-generation Local Area Network.

Demonstration of upstream WDM+FDMA PON and real time implementation on an FPGA platform

We present a final demonstration of upstream FDMA-PON transmission on the EU project FABULOUS architecture. We show WDM capability over four wavelengths, each carrying 32 Gbps at 31 dB ODN loss, and DSP real time implementation on a commercial FPGA.

Toward 20 Gbps upstream FDMA-PON real-time and low-speed DSP demonstrator

We experimentally demonstrate a FDMA-PON system targeting 20 Gbps per wavelength in the upstream, using a real-time FPGA-based transmitter and low-speed baseband DSP, in the framework of the EU research project FABULOUS.

Demonstration of Upstream WDM+FDMA Reflective PON and Real-Time Implementation on an FPGA Platform

We present a comprehensive set of measurements on the reflective passive optical networks upstream architecture, conceived within the FABULOUS Project, in its four-wavelengths configuration, showing the possibility of dramatically increasing the number of users or the bit-rate per user with respect to single-wavelength operation, demonstrating a 128-Gb/s capacity up to interesting values of optical distribution network losses. In addition, a comparison with the NG-PON2 standardized in G.989 at the same bit-rate is held, showing that accepting to reduce the per-wavelength bit-rate of our architecture to 10 Gb/s in a four-wavelengths network can provide great power budgets. Real-time implementation of the upstream on a FGPA platform is demonstrated as well, showing little penalty with respect to off-line experiments. We, also, theoretically analyze the possible performance improvements when higher-bandwidth modulators are used, and we discuss on the system flexibility offered by our proposal.

Final results from EU project "fABULOUS"

In this paper we present our final results on the real-time implementation on an FPGA platform of the digital signal processing required in the FDMA-PON architecture studied in the EU project “FABULOUS”. ”. For the first time, we demonstrated simultaneous upstream and downstream real-time transmission capable of carrying Gigabit Ethernet bidirectional traffic to each ONU.

Upstream transmission in a reflective FDMA-PON: Results from the EU project FABULOUS

In this paper, we present a new FDMA-PON (Frequency Division Multiple Access - Passive Optical Network) architecture proposed by the FP7 EU STREP project titled “FABULOUS”. The paper is focused on the upstream transmission, based on an innovative reflective optical network unit (R-ONU). A detailed theoretical analysis is first presented and used to optimize the system parameters, then we show the experimental results, demonstrating a 16 Gbps upstream bit rate per wavelength.