Networking and routing in space-division multiplexed systems

Marom, Dan M.; Ryf, Roland; Neilson, David T.

doi:10.1016/b978-0-12-816502-7.00018-x

Cited by 9 publications

(4 citation statements)

References 30 publications

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“…The switch that supports randomly-coupled MCFs would typically be composed of a waveguide shuffle that rearranges the core configuration at the entrance of the switch, followed by a wavelength selective switch in "joint switching" configuration, where a single steering element (microelectromechanical system (MEMS) or liquid crystal on silicon (LCOS) mirror) is used to switch all cores at the same time. At the output of the switch, a second core shuffle would be used to match the core arrangement of the randomly-coupled MCFs [107]. The disadvantage of this architecture is that randomly-coupled MCFs are not compatible with SMFs terrestrial networks, and there is no simple path to scale the number of cores over time.…”

Section: B Terrestrial Applicationsmentioning

confidence: 99%

Randomly-Coupled Multi-Core Fiber Technology

et al. 2022

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| Randomly-coupled multi-core fiber (MCF) technology has come to attract lots of attention because of its strong applicability to long-haul transmission systems. Compared with weakly-coupled MCFs with independent cores, it can simultaneously realize higher spatial channel density and ultralow transmission loss using existing ultralow-loss single-mode fiber (SMF) core designs. The strong mode coupling characteristics of randomly-coupled MCFs can provide favorable optical properties, such as suppressed accumulation of modal dispersion (MD), mode-dependent loss (MDL), and nonlinear impairments. This article gives an overview of randomly-coupled MCF technology advancements. First, we describe the classification and design of randomly-coupled MCFs and explain what the randomly-coupled MCFs are and how they are designed. State-of-the-art randomly-coupled MCFs can accommodate four, seven, or 12 cores in a standard 125-µm cladding while achieving ultralow transmission loss and/or small MD, which are very promising for long-haul transmission media. Next, we present the methods to characterize the optical properties of randomly-coupled MCFs and the difference compared to conventional SMF measurements. We also show the low-loss low-MDL connectivity of Manuscript

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Section: B Terrestrial Applicationsmentioning

confidence: 99%

Randomly-Coupled Multi-Core Fiber Technology

et al. 2022

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“…4(c)], as performed today in today's SMF networks at the wavelength channel level. The tradeoffs between independent switching of each wavelength and core communication channel at the expense of hardware complexity versus switching at the wavelength channel level across all spatial channels (known as wavelength superchannel) or at the spatial channel level across all wavelengths (spatial superchannel) have been addressed in [42] and [43] and remains an active area of debate for future network builds.…”

Section: Optical Switchesmentioning

confidence: 99%

“…Offering an optically switched environment at the scale required for datacenters (many thousands over complete fiber bandwidth), i.e., the flat topology of Fig. 14(c), can be addressed via an optical switch fabric consisting of multiple OXC placed in a Benes network [43] [Fig. 15 (top)].…”

Section: Proceedings Of the Ieee 13mentioning

confidence: 99%

Optical Switching in Future Fiber-Optic Networks Utilizing Spectral and Spatial Degrees of Freedom

et al. 2022

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Forthcoming capacity scaling requirements of optical networks and advances in optical fiber communications beyond the omnipresent single-mode fiber operating over the conventional band introduces new opportunities and challenges for exploiting the expanded spectral and spatial resources available for fiber-optic network designs. The spectral and spatial degrees of freedom introduce utilization tradeoffs that can be leveraged under different applications. After briefly reviewing the supporting network building elements (emerging fiber types, multiplexers, optical switches, and amplifiers), we consider networking scenarios such as intra/inter datacenter, terrestrial, undersea, and wireless 5G/6G hauling networks and identify the best utilization plan and key attributes that can be harnessed by the offered spectral and spatial degrees of freedom for each scenario and how optical switching can be employed therein for traffic management. Networks supporting these scenarios are Manuscript

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“…In such a network, an optical link supports multiple optical channels and each channel uses a specific wavelength [1][2][3]. The optical nodes may connect any channel on one of its input ports to any channel on one of its output ports [4][5]. In an optical network, an optical path is defined by a succession of links and nodes between a source node and a destination node in which a single wavelength is used from end to end [6,7].…”

Section: Introductionmentioning

confidence: 99%

Efficient Placement of Splitters in Optical WDM Network

Dafeur

Cousin

Ziani

2021

Preprint

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In this paper, we investigate the splitter placement problem in an optical WDM network. The goal is to select a given number of MC nodes in the network such that the overall link cost of a multicast session is minimized. We present an exact formulation in integer linear programming ( ILP ) to find a set of trees that connects a source to a set of destination nodes. Then, four algorithms based on network topology metrics are proposed to select a given number of MC nodes in the network such that the overall link cost of a multicast session is minimized. The efficiency of the proposed algorithms is verified by simulation results.

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Networking and routing in space-division multiplexed systems

Cited by 9 publications

References 30 publications

Randomly-Coupled Multi-Core Fiber Technology

Randomly-Coupled Multi-Core Fiber Technology

Optical Switching in Future Fiber-Optic Networks Utilizing Spectral and Spatial Degrees of Freedom

Efficient Placement of Splitters in Optical WDM Network

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