Multiplane Orbital Angular Momentum and Wavelength Switch based on Integrated Tunable Vortex Emitters

Scaffardi, M.; Andriolli, N.; Malik, M. N.; Zhang, N.; Lazzeri, Emma; Klitis, Charalambos; Lavery, Martin P. J.; Sorel, Marc; Bogoni, Antonella

doi:10.1364/ofc.2018.th2a.44

Optical Fiber Communication Conference 2018

DOI: 10.1364/ofc.2018.th2a.44

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Multiplane Orbital Angular Momentum and Wavelength Switch based on Integrated Tunable Vortex Emitters

M. Scaffardi

N. Andriolli

M. N. Malik

et al.

Abstract: A multiplane switch architecture exploiting OAM and wavelength domains is characterized in terms of BER, scheduling/reconfiguration latency, and power consumption. Doubling the exploited OAM modes reduces the latency by 42% and the power by 17%.

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Cited by 2 publications

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“…Nevertheless, in that demonstration only circuit switching was implemented. In [25] the performance of a two-step scheduler (TSS) specifically designed for the multiplane architectures, e.g., the OAM-wavelength switch, was assessed through simulation. TSS operation is composed of two sequential steps, the first one devoted to the intra-card scheduling, and the second one performing the inter-card scheduling [26].…”

mentioning

confidence: 99%

Demonstration of a Multiplane OAM-Wavelength Packet Switch Controlled by a Two-Step Scheduler Implemented in FPGAs

Malik

Borromeo

Scaffardi

et al. 2019

J. Lightwave Technol.

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mentioning

confidence: 99%

Demonstration of a Multiplane OAM-Wavelength Packet Switch Controlled by a Two-Step Scheduler Implemented in FPGAs

Malik

Borromeo

Scaffardi

et al. 2019

J. Lightwave Technol.

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FPGA-based implementation of two-step schedulers for modular optical interconnection networks

Borromeo

Cerutti

Castoldi

et al. 2021

J. Opt. Commun. Netw.

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Optical interconnection networks promise to overcome the limitations of current electronic switching fabrics, enabling higher throughput, lower latency, and lower power consumption. Multi-plane architectures, based on multiple optical switching domains (e.g., space, time, wavelength, orbital angular momentum), are gaining research attention because of their modularity and scalability compared to single-domain switches. An effective scheduler, namely, the two-step scheduler (TSS), has been proposed for multi-plane optical interconnection networks, exploiting their modularity to speed up computations while satisfying the peculiar scheduling constraints. In this paper, a hardware implementation of TSS for modular optical interconnection networks is presented and thoroughly assessed. Both scheduling steps are parallelized with the aim of optimizing the execution time. iSLIP and longest queue first (LQF) scheduling algorithms are exploited in each step, resulting in four TSS configurations that are compared among each other and with classical single-step schedulers (SSSs) in terms of scheduling and hardware performance. TSS outperforms SSS in terms of the number of iterations, maximum operating frequency, worst-case scheduling duration, and required logic resources (i.e., scalability) at the expense of a slight latency penalty. Among all TSS configurations, LQF-based TSS guarantees the lowest scheduling latency, while iSLIP-based TSS minimizes the scheduling duration and the use of field programmable gate array (FPGA) resources.

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Multiplane Orbital Angular Momentum and Wavelength Switch based on Integrated Tunable Vortex Emitters

Abstract: A multiplane switch architecture exploiting OAM and wavelength domains is characterized in terms of BER, scheduling/reconfiguration latency, and power consumption. Doubling the exploited OAM modes reduces the latency by 42% and the power by 17%.

Cited by 2 publications

References 9 publications

Demonstration of a Multiplane OAM-Wavelength Packet Switch Controlled by a Two-Step Scheduler Implemented in FPGAs

Demonstration of a Multiplane OAM-Wavelength Packet Switch Controlled by a Two-Step Scheduler Implemented in FPGAs

FPGA-based implementation of two-step schedulers for modular optical interconnection networks

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