An All-Optical Grooming Switch for Interconnecting Access and Metro Ring Networks [Invited]

Bonk, R.; Vorreau, P.; Hillerkuss, D.; Freude, W.; Zarris, G.; Simeonidou, Dimitra; Parmigiani, Francesca; Petropoulos, P.; Weerasuriya, Ruwan; Ibrahim, Selwan K.; Ellis, A.D.; Klonidis, Dimitrios; Tomkos, Ioannis; Leuthold, Juerg

doi:10.1364/jocn.3.000206

Cited by 6 publications

(2 citation statements)

References 23 publications

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“…Even though utilization of optical regenerators was the subject of extensive research presented in many papers (see e.g., [6]), such solutions are not frequently used in practice. Physical impairment aware routing is a quite new concept, and some approaches are already available in the literature.…”

Section: Introductionmentioning

confidence: 99%

Methods for physical impairment constrained routing with selected protection in all-optical networks

2013

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In this paper, we investigate the problem of survivable all-optical routing in WDM networks with physical impairments. One of the recent key issues in survivable optical network design refers to maximization of the ratio of routeable demands while keeping the overall network cost low. In WDM networks, this goal can be achieved by routing as many demands in all-optical way as possible. Based on the latest technical trends driven by deployment costs, technical constraints, and backward compatibility, this will not mean that all demands will be routed in all-optical way in the near future.Nowadays, operators are mostly willing to dedicate only a given ratio of their power budget to all-optical routing. This in turn implies a new problem to be solved: operators have to find a way to select demands that should be routed in all-optical way and which should not. The problem gets even more complicated, if we add demand protection issues.In this paper, we introduce and evaluate methods able to maximize the number of demands routed with protection in all-optical way in capacity-constrained networks with limitations on path lengths according to physical impairments.

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Section: Introductionmentioning

confidence: 99%

Methods for physical impairment constrained routing with selected protection in all-optical networks

2013

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“…A sharp transition region (step-like TF) makes the nonlinear system suitable for optical thresholding, which can be employed, e.g., for photonic analog-to-digital conversion as proposed in [2], or code recognition in OCDMA systems [3]. If the transition is not sharp, the nonlinear system can be employed as a reshaper for all-optical amplitude regeneration, e.g., in high-speed OTDM networks [4] or within edge nodes connecting metro-core and metro-access rings [5]. Reshapers for regeneration employing optical fiber [6] exploit nonlinear effects, such as self-phase modulation (SPM), four-wave mixing (FWM), and cross-phase modulation (XPM) within interferometric architectures such as nonlinear optical loop mirrors (NOLMs).…”

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confidence: 99%

NRZ/RZ 40 Gbit/s optical regenerator based on a photonic two-level nonlinear device

2013

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A compact device with a two-level transfer function (TF) implemented with two semiconductor optical amplifier (SOA)-based stages is proposed and characterized. Each stage exploits nonlinear polarization rotation and self-phase modulation. The obtained improved TF with very flat top and bottom levels makes the scheme suitable for working as a reshaper in all-optical regeneration. The effectiveness of the device is verified in regenerating both nonreturn-to-zero (NRZ) and return-to-zero (RZ) data signals up to 40 Gb/s. Bit error rate measurements demonstrate increased threshold margin and extinction ratio improvement.

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NRZ versus RZ over Absolute Added Correlative coding in optical metro-access networks

Nguyen

Elsherif

Minh

et al. 2017

Optics Communications

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An All-Optical Grooming Switch for Interconnecting Access and Metro Ring Networks [Invited]

Cited by 6 publications

References 23 publications

Methods for physical impairment constrained routing with selected protection in all-optical networks

Methods for physical impairment constrained routing with selected protection in all-optical networks

NRZ/RZ 40 Gbit/s optical regenerator based on a photonic two-level nonlinear device

NRZ versus RZ over Absolute Added Correlative coding in optical metro-access networks

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