Upstream FEC performance in combination with burst mode receivers for next generation 10 Gbit/s PON

Betou, Einar In de; Mobilon, Eduardo; Angeli, Bruno C. C.; Öhlen, P.; Lindstrom, Alexander; Dahlfort, Stefan; Trojer, Elmar

doi:10.1109/ecoc.2010.5621533

Cited by 9 publications

(4 citation statements)

References 2 publications

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“…(1) in 1.7 · 10 −7 , as shown in Table II. It must be taken into account that typically, advanced modulation formats operate with Forward-Error Correction (FEC), and our BER values, without FEC, are below the 10 −3 reference, which is the FEC limit for 10G-Ethernet Passive Optical Network (EPON) standard [16], [17].…”

Section: Resultsmentioning

confidence: 99%

A Silicon Differential Receiver With Zero-Biased Balanced Detection for Access Networks

Aamer

Sotiropoulos

Brimont

et al. 2013

IEEE Photon. Technol. Lett.

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Abstract-We present an optimized differential receiver in silicon with a minimized footprint and balanced zero-biased Ge photodiodes. The receiver integrates a delay-line with a 2 × 4 multimode interferometer 90°hybrid and two balanced photodiodes for differential quadrature phase-shift keying demodulation. Two receivers are tested, for 10 and 20 Gb/s operation, and well opened eye-diagrams and symbol constellations are obtained with error vector magnitude values as low as 12.5% and 19.57%, respectively. The results confirm the potential of integrated silicon receivers to become key building blocks for future passive optical access networks based on advanced modulation formats.

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Section: Resultsmentioning

confidence: 99%

A Silicon Differential Receiver With Zero-Biased Balanced Detection for Access Networks

Aamer

Sotiropoulos

Brimont

et al. 2013

IEEE Photon. Technol. Lett.

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“…The default coding scheme calls for the use of (often interleaved) Reed‐Solomon (RS) codes. The main reasons for using the Reed‐Solomon codes include their relatively simple implementation, ensured error correcting capability up to a predefined number of (symbol) errors, relatively short block lengths, symbol‐oriented correction (of importance if a modulation code such as an 8B/10B code is used [35]), and the ability to correct burst errors, especially when using interleaving across multiple code words [34, 85, 91]. Such interleaving is useful for channels with burst errors and it also lowers the processing speed of the individual decoders.…”

Section: Coding In Optical Access Networkmentioning

confidence: 99%

Forward error correction in optical core and optical access networks

Schmalen¹,

Wijngaarden

Brink³

2013

Bell Labs Tech. J.

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Forward error correction (FEC) techniques are essential for optical core and optical access networks. In optical core networks, the emphasis is on high coding gains and extremely low output bit error rates, while allowing decoder realizations to operate at a throughput of 100 Gb/s and above. Optical access networks operate at 10 Gb/s or above and require low‐complexity FEC codes with low power consumption. Coherent optical transmission with higher order modulation formats will become mandatory to achieve the high spectral efficiencies required in next‐generation core networks. In this paper, we provide an overview of these requirements and techniques, and highlight how coding and modulation can be best combined in optical core networks. We also present guidelines for modulation and low‐complexity FEC system design for optical access networks. © 2013 Alcatel‐Lucent.

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“…Moreover, for what concerns possible application in the PON area, we did not consider yet in our present work any issue related to PON upstream burst-mode transmission [15], [16]. Burst-mode coherent receivers are still an open topic, even though several preliminary works are available in the literature [17].…”

Section: Introductionmentioning

confidence: 99%

Scaling Laws for Unamplified Coherent Transmission in Next-generation Short-Reach and Access Networks

Rizzelli¹,

Nespola²,

Straullu³

et al. 2021

Preprint

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International standardization bodies (IEEE and ITU-T) working on the evolution of transmission technologies are still considering traditional direct detection solutions for the most relevant short reach optical link applications, that are Passive Optical Networks (PON) and intra-data center interconnects. Anyway, future jumps towards even higher bit rates per wavelength will require a complete paradigm shift, moving towards coherent technologies. In this paper, we thus study both analytically and experimentally the scaling laws of unamplified coherent transmission in the short-reach communications ecosystems. We believe that, given the extremely tight technoeconomic constraints, such a revolutionary transition towards coherent in short-reach first requires a very detailed study of its intrinsic capabilities in largely extending the limitation currently imposed by direct detection systems. To this end, this paper focuses on the ultimate physical layer limitations of unamplified coherent systems in terms of bit rate and power budget. The main parameters of our performance estimation model are extracted through fitting with a set of experimental characterizations and later used as the starting point of a scaling laws study regarding local oscillator power, modulator-induced attenuation, bit rate, and maximum achievable power budget. The analytically predicted performance is then verified through transmission experiments, including a demonstration on a 37-km installed metropolitan dark fiber in the city of Turin. Our findings show that coherent detection without optical pre-amplification and using PM-QPSK can tolerate optical power budget (OPB) well above, for instance, the 29 dB imposed by the current PON standards even at extremely high raw bit rates up to 800 Gbps. PM-16QAM, on the other hand, can provide up to 190 Gbps at 29 dB OPB only if combined with soft FEC algorithms. Even higher bit rate are also shown for the less demanding power budget needed in intra-data centers links.

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Upstream FEC performance in combination with burst mode receivers for next generation 10 Gbit/s PON

Abstract: FEC gain in DC-coupled burst mode receivers is limited because of a variance in BER between bursts. This BER variance is characterized in an XG-PON1 upstream prototype. It is shown that basic BER tests overestimate the FEC gain.

Cited by 9 publications

References 2 publications

A Silicon Differential Receiver With Zero-Biased Balanced Detection for Access Networks

A Silicon Differential Receiver With Zero-Biased Balanced Detection for Access Networks

Forward error correction in optical core and optical access networks

Scaling Laws for Unamplified Coherent Transmission in Next-generation Short-Reach and Access Networks

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