Advances in Optical Technologies and Techniques for High Capacity Communications

Fresi, Francesco; Imran, Muhammad; Malacarne, Antonio; Meloni, G.; Sorianello, Vito; Forestieri, E.; Potì, L.

doi:10.1364/jocn.9.000c54

Cited by 14 publications

(5 citation statements)

References 29 publications

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“…Fresi et al [5] have surveyed the advances of optical technologies and techniques specifically for high-capacity communications. The survey was focused on comparing a list of photonic technologies and communication techniques that could increase the capacity of optical networks while at the same time improving cost and power consumption.…”

Section: A Existing Surveys Studies and Methodology Of This Workmentioning

confidence: 99%

A Comparative Survey of Coding, Multiplexing, and Equalization Techniques Used in Coherent Optical Fiber Communications

Ladrido¹,

Trinidad²,

Molina³

et al. 2021

Int. J. Adv. Sci. Eng. Inf. Technol.

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As the world advances into 5G networks, significant scientific research accomplishments are being conducted for a communication system that could further enhance the current limit of data transmission capacity. Currently, the communication systems with the highest data rate are optical fiber systems. Due to the recent advancement of coherent optical fiber communications by exploiting time, wavelength, phase, amplitude, polarization, and space, optical engineering can break the petabit barrier data rate. Thus, coherent optical fiber communications is a hot topic due to its very high data rate that could be applied or a requirement in 5G and big data analytics. This paper focuses on a comparative survey of the current applied fundamental techniques in fiber communication channels. These fundamental techniques that could be further studied and exploited to increase the bandwidth performance, decrease the error rate and energy consumption are coding, multiplexing, and equalization. At the end of this paper, a comparative result is discussed to explain the difference among the current techniques in the literature for the optical engineering community to improve collective coding, multiplexing, and equalization in coherent fiber systems.

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Section: A Existing Surveys Studies and Methodology Of This Workmentioning

confidence: 99%

A Comparative Survey of Coding, Multiplexing, and Equalization Techniques Used in Coherent Optical Fiber Communications

Ladrido¹,

Trinidad²,

Molina³

et al. 2021

Int. J. Adv. Sci. Eng. Inf. Technol.

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“…Advance DQPSK modulation format provides robustness to dispersion, high spectrum efficiency than OOK, and has better suppression of nonlinear effects that occurs in long‐haul optical communication system 21 . The key feature of the DQPSK modulation format is to transmit two bits per symbol with a phase reference of 90° among 0 and 1 and therefore has the ability to double the spectrum utilization 22 .…”

Section: Network Modelmentioning

confidence: 99%

Alleviation of nonlinear channel effects in long‐haul and high‐capacity optical transmission networks

Ali

Habib

Muhammad

et al. 2021

Int J Communication

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Summary Optical transmission networks (OTxNs) provide a cost‐effective solution towards ultrahigh data intercontinental transmission. However, nonlinear effects such as four‐wave mixing (FWM) and cross‐phase modulation (XPM) are the major performance limiting factors for OTxNs. This paper proposes the use of differential quadrature phase shift keying (DQPSK) modulation format and uneven channel spacings for dispersion compensation and investigates the nonlinear mitigation performance for a 32 channels ultradense wavelength division multiplexing (UDWDM) with data rate of up to 10 Gbps per channel. In addition, this paper presents an analysis on power budget and power penalties with a cost benefit analysis (CBA) for the proposed framework. The transmission link of the proposed UDWDM model is analyzed in terms of bit error rate (BER) for various lengths of optical fiber in long‐haul transmission, launch power, nonlinear effective area, and nonlinear refractive index. The analytical model is developed for mitigation of nonlinearity for the modeled UDWDM long‐haul and ultrahigh‐capacity system, beyond 1200‐km path span. The simulation results show systems advantages of having narrower spectrum than on‐off‐keying (OOK) modulation, significant tolerance to nonlinearities and low cost, compared with current OTxNs with 2.8‐dB optical signal‐to‐noise ratio (OSNR) improvement and successful mitigation of nonlinearities for as high launch powers as +4 dBm for such long distance transmission in dispersive channel.

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“…This cost-effective integrated alternative is at the expense of full tune-ability, programmability and flexibility [7], [5]. In [16], it is shown that the adoption of integrated III-V laser arrays and/or combs (with respect to discrete laser sources) can reduce the cost and power consumption down to a factor of 4, thus contributing to further reduce the total cost and power consumption of the transponder. Super-channels and super-wavelength granularity can be enabled, optically processed and managed using devices based on liquid crystal on silicon (LCoS) or planar lightwave circuit (PLC) technology, trading again tune-ability, performance and cost [6], [14].…”

Section: A Photonic Technologies and Trade-offsmentioning

confidence: 99%

Synergy of Photonic Technologies and Software-Defined Networking in the Hyperconnectivity Era

Moreolo

Fàbrega

Nadal

et al. 2019

J. Lightwave Technol.

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Photonic technologies and software-defined networking (SDN) are key to support hyperconnectivity in a globally networked society. We present programmable optical transmission systems and particularly SDNenabled transceiver architectures for addressing this challenge. Special attention is devoted to promising technologies able to reduce the cost, power consumption and footprint of the optical subsystems and network elements. This is particularly relevant for future agile and high-capacity metro networks, identified to be the most challenging segment. Specifically, the adoption of highdense photonic integration and long-wavelength vertical cavity surface emitting lasers (VCSELs) is considered for the design of sliceable bandwidth/bitrate variable transceiver (S-BVT) architectures supporting hyperconnectivity. Programmability and technological aspects are discussed, as well as recent results and achievements, focusing on opportunities and limitations provided by the proposed solutions. Starting from the identification of programmable parameters, the photonic transceivers modeling is provided towards their automatic configurability by an SDN controller. An efficient use of the available resources is promoted, while fully exploiting the photonic technology potentialities and exploring advanced functionalities that can be provided. Index Terms-Sliceable bandwidth/bitrate variable transceiver (S-BVT), software-defined networking (SDN), vertical cavity surface emitting lasers (VCSEL), optical metro networks, photonic integration/technologies. I. INTRODUCTION YPERCONNECTIVITY is a term coined and first used in social science to indicate "the availability of people for communication anywhere and anytime" and refers to a This paper is part of a project that has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement PASSION No 780326. This work has been also partially supported by the Spanish DESTELLO (TEC2015-69256-R) and AURORAS (RTI2018-099178-B-I00) projects.

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Advances in Optical Technologies and Techniques for High Capacity Communications

Cited by 14 publications

References 29 publications

A Comparative Survey of Coding, Multiplexing, and Equalization Techniques Used in Coherent Optical Fiber Communications

A Comparative Survey of Coding, Multiplexing, and Equalization Techniques Used in Coherent Optical Fiber Communications

Alleviation of nonlinear channel effects in long‐haul and high‐capacity optical transmission networks

Synergy of Photonic Technologies and Software-Defined Networking in the Hyperconnectivity Era

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