Optimization of Reflective FDMA-PON Architecture to Achieve 32 Gb/s Per Upstream Wavelength Over 31 dB ODN Loss (original) (raw)
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Single-Wavelength Downstream FDMA-PON at 32 Gbps and 34 dB ODN Loss
IEEE Photonics Technology Letters, 2015
We propose a PON solution to reach 32 Gbps over a traditional high loss downstream splitter-based optical distribution network (ODN) without using multiple wavelengths at the OLT side nor massive digital signal processing at the ONU side. The achieved 32 Gbps capacity is not too far from the 40 Gbps given by a 4-wavelengths TWDM-PON but completely avoids the handling of multiple wavelengths thanks to a higher electrical spectral efficiency and some system optimization.
Upstream transmission in a reflective FDMA-PON: Results from the EU project FABULOUS
2014 European Conference on Networks and Communications (EuCNC), 2014
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.
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Journal of Lightwave Technology, 2015
We present a comprehensive set of measurements on the reflective PON upstream architecture conceived within the FABULOUS Project, in its 4-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 Gbps 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 bitrate of our architecture to 10 Gbps in a 4-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 possible performance improvements when higher-bandwidth modulators are used, and we discuss on the system flexibility offered by our proposal.
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39th European Conference and Exhibition on Optical Communication (ECOC 2013), 2013
We present a multi-channel transmitter that employs an arrayed reflective electroabsorption modulator-based photonic integrated circuit and low-power driver array. Error-free 11.3-Gb/s per channel performance is achieved over 96 km of SSMF, with negligible crosstalk (<1-dB penalty) in multi-channel operation.
2014 Fotonica AEIT Italian Conference on Photonics Technologies, 2014
In this paper we present the FDMA-PON (Frequency Division Multiple Access-Passive Optical Network) architecture proposed by the FP7 EU STREP project titled "FABULOUS", focusing on downstream transmission. We experimentally demonstrate that the proposed architecture allows to reach 16 Gbps aggregated capacity per downstream wavelength over an optical distribution network with 30dB loss, still using direct-detection receivers and requiring relatively low speed digital signal processing at the ONU side.
Cost-Effective OFDM WDM-PON system Delivering Downstream data 100Gbps and Upstream data 2 Gbps
12th International Conference on Fiber Optics and Photonics, 2014
This paper presents Long Reach Orthogonal frequency division multiplexing Wavelength Division Multiplexing Passive Optical Network (OFDM WDM-PON) system capable of delivering downstream 100 Gbit/s data and upstream 2 Gbit/s data on a single wavelength. The optical source for downstream data and upstream data is Continous wave Laser at central office and reflective semiconductor optical amplifier (RSOA) at each optical network unit. We use two RSOAs at each optical network unit for the 2-Gb/s upstream transmission. We extend the maximum reach of this OFDM WDM PON to be 50 km by using Raman amplifiers at the RN. The hybrid amplifier is designed to enhance the signal power and compensated the fiber dispersion over a wide wavelength range. The combination of 45 km single mode fiber and 5 km dispersion compensated fiber (DCF) is used for transmission of upstream data to improve uplink performance. This research focuses on the implementation and performance analysis of high data rate coherent optical OFDM WDM PON for long-haul transmission. OptiSystem-12 simulation tool is fully used to design and implement the system. The performance of the system is studied and analyzed system in terms of Bit-Error-Rate (BER), the effect of the transmission distance on the constellation diagram, and the relation of BER and OSNR with regard to transmitted input power.
OPTOELECTRONICS LETTERS, 2017
We investigate a wavelength-division-multiplexing passive optical network (WDM-PON) with centralized lightwave and direct detection. The system is demonstrated for symmetric 10 Gbit/s differential phase-shift keying (DPSK) downstream signals and on-off keying (OOK) upstream signals, respectively. A wavelength reused scheme is employed to carry the upstream data by using a reflective semiconductor optical amplifier (RSOA) as an intensity modulator at the optical network unit (ONU). The constant-intensity property of the DPSK modulation format can keep high extinction ratio (ER) of downstream signal and reduce the crosstalk to the upstream signal. The bit error rate (BER) performance of our scheme shows that the proposed 10 Gbit/s symmetric WDM-PON can achieve error free transmission over 25-km-long fiber transmission with low power penalty.