Increasing Flexibility and Capacity in Real PON Deployments by Using 2/4/8-PAM Formats

Linden, R. van der; Tran, Nguyen-Cac; Tangdiongga, E.; Koonen, Ton

doi:10.1364/jocn.9.0000a1

Cited by 31 publications

(12 citation statements)

References 14 publications

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“…To examine the effect that non-uniform PAM can have on the aggregated capacity of a PON we cross-reference the experimental results with a data set of received optical powers of more than 45,000 ONUs from the GPON networks of INEA, Poland. This data set is an extension of the data set used in previous works [3], consisting of partly the same ONUs as the previous data set. The ONUs of this network use B+ class optics.…”

Section: Network Performancementioning

confidence: 99%

“…We experimentally verify the benefits of using a non-uniform PAM constellation optimized for signal-dependent noise inside such system. Furthermore, we show the throughput results of nonuniform PAM expected in a commercially deployed PON with an updated statistics set, encompassing a larger number of deployed ONUs than presented in previous work [3].…”

Section: Introductionmentioning

confidence: 97%

“…In previous work [3] we introduced the use of flexible modulation in PONs. Flexible modulation allocates higherorder modulation formats to those ONUs that receive enough optical power to support these formats, and at the same time allocates lower-order modulation formats to the other ONUs.…”

Section: Introductionmentioning

confidence: 99%

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Optimization of Flexible Non-Uniform Multilevel PAM for Maximizing the Aggregated Capacity in PON Deployments

Linden

Tran²,

Tangdiongga

et al. 2018

J. Lightwave Technol.

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Section: Network Performancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

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Optimization of Flexible Non-Uniform Multilevel PAM for Maximizing the Aggregated Capacity in PON Deployments

Linden

Tran²,

Tangdiongga

et al. 2018

J. Lightwave Technol.

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“…Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited. 10.1364/JOCN.391872 flexibility to adapt to high peak user rates and a more efficient usage of the network resources including energy consumption [4]. This can be accomplished by flexible modulation schemes: recent works in PONs mainly focus on pulse amplitude modulations (PAMs) [4,5] and a few works on adaptive modulation either based on direct detection (DD) or coherent detection [6,7].…”

Section: Introductionmentioning

confidence: 99%

Flexible transmitters based on directly modulated VCSELs for next-generation 50G passive optical networks

Parolari

Gatto

Neumeyr

et al. 2020

J. Opt. Commun. Netw.

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Discrete multitone (DMT) modulation, thanks to its water-filling nature, is proposed to enable flexibility in passive optical networks (PON) optimizing the PON resource usage. The exploitation of DMT signals to directly modulate long-wavelength vertical cavity surface emitting lasers (VCSELs) can provide energy-efficient transmitters for 50G PONs. At first, we present preliminary experimental measures employing both single sideband and dual sideband DMT modulation with already available short-cavity VCSELs operating in the third window to study the PON performance as a function of the accumulated chromatic dispersion and of the received power. The experimental results are further compared with simulations, demonstrating the effectiveness of the developed simulation tool. Then we study the performance of DMT-modulated transmitters based on next-generation short cavity VCSELs with higher bandwidth (up to 20 GHz), operating in the O band evaluating their chromatic dispersion resilience. Finally, considering the statistics of a commercially deployed PON, we demonstrate that DMT modulation, providing link adaptation, offers a significant increase of the total aggregated capacity with respect to single-carrier based fixedrate PON, optimizing the PON resource usage with respect to the available power budget and the dispersion impairments.

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“…Optical communication systems are evolving from classic spectral inefficient non-return to zero (NRZ) schemes to more advanced and flexible modulation schemes such as quadrature phase shift keying (QPSK) [8], [9], pulse amplitude modulation (PAM) [10], [11], discrete multi-tone (DMT) [12]- [14], multi-band approach of carrierless amplitude phase (MultiCAP) [15], [16], polybinary modulation [17], [18], among others. By combining VCSEL technology with these advanced modulation schemes, spectral efficiency can be boosted up, enabling low-cost 100G links at single wavelength, single polarization, and direct detection.…”

mentioning

confidence: 99%

Effective 100 Gb/s IM/DD 850-nm Multi- and Single-Mode VCSEL Transmission Through OM4 MMF

Puerta

Agustin

Chorchos

et al. 2017

J. Lightwave Technol.

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Increasing Flexibility and Capacity in Real PON Deployments by Using 2/4/8-PAM Formats

Cited by 31 publications

References 14 publications

Optimization of Flexible Non-Uniform Multilevel PAM for Maximizing the Aggregated Capacity in PON Deployments

Optimization of Flexible Non-Uniform Multilevel PAM for Maximizing the Aggregated Capacity in PON Deployments

Flexible transmitters based on directly modulated VCSELs for next-generation 50G passive optical networks

Effective 100 Gb/s IM/DD 850-nm Multi- and Single-Mode VCSEL Transmission Through OM4 MMF

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