Mode-Division Multiplexing of 2$\,\times\,$100 Gb/s Channels Using an LCOS-Based Spatial Modulator

Salsi, M.; Koebele, Clemens; Sperti, Donato; Tran, P.; Mardoyan, H.; Brindel, P.; Bigo, S.; Boutin, Aurélien; Verluise, F.; Sillard, Pierre; Astruc, M.; Provost, L.; Charlet, G.

doi:10.1109/jlt.2011.2178394

Cited by 182 publications

(57 citation statements)

References 8 publications

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“…In contrast, fibre communications are increasingly targeting multimode operation in conjunction with WDM to further scale the communication bandwidth transmitted per fibre 3 . Multimode communications in fibres have been demonstrated with space-division multiplexing in multi-core fibres [4][5][6][7][8] or mode-division multiplexing (MDM) in few-mode fibres [9][10][11][12][13][14][15][16][17] and have exploited each spatial mode as an independent channel. It is similarly of interest to attempt to incorporate the spatial-mode-parallelism degree of freedom into complex photonic-integrated circuits to introduce additional functionality and provide potential performance gains.…”

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confidence: 99%

WDM-compatible mode-division multiplexing on a silicon chip

et al. 2014

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Significant effort in optical-fibre research has been put in recent years into realizing mode-division multiplexing (MDM) in conjunction with wavelength-division multiplexing (WDM) to enable further scaling of the communication bandwidth per fibre. In contrast, almost all integrated photonics operate exclusively in the single-mode regime. MDM is rarely considered for integrated photonics because of the difficulty in coupling selectively to high-order modes, which usually results in high inter-modal crosstalk. Here we show the first microring-based demonstration of on-chip WDM-compatible mode-division multiplexing with low modal crosstalk and loss. Our approach can potentially increase the aggregate data rate by many times for on-chip ultrahigh bandwidth communications.

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confidence: 99%

WDM-compatible mode-division multiplexing on a silicon chip

et al. 2014

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“…A combination of optical discriminator and MIMO signal processing can distinguish higher order LP-modes that accommodate high data-rate coherent modulation. In an early trial, 2 × 2 MIMO with 100 Gb/s [73,74] and 6 × 6 MIMO with 56 Gb/s [75,76] were demonstrated. As a SDM-MUX/DEMUX, FSO is proposed in an early report.…”

Section: Mode-division Multiplexing Transmissionmentioning

confidence: 99%

Review of Space-Division Multiplexing Technologies in Optical Communications

Awaji¹

2019

IEICE Trans. Commun.

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SUMMARYThe potential transmission capacity of a standard single-mode fiber peaks at around 100 Tb/s owing to fiber nonlinearity and the bandwidth limitation of amplifiers. As the last frontier of multiplexing, space-division multiplexing (SDM) has been studied intensively in recent years. Although there is still time to deploy such a novel fiber communication infrastructure; basic research on SDM has been carried out. Therefore, a comprehensive review is worthwhile at this time toward further practical investigations.

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“…In recent years, liquid crystal on silicon (LCoS) [1,2] displays have become the most attractive micro-displays for all sorts of spatial light modulation (SLM) applications, as in diffractive optics [3], optical storage [4], optical metrology [5], reconfigurable interconnects [6,7], quantum optical computing [8], and wave shaper technology for optical signal processing and signal monitoring [9], thanks to their very high spatial resolution, very high light efficiency, and their phase-only modulation capability [10,11]. In this article, we focus on the characteristics of LCoS SLM for wavelength selective switch (WSS) systems used in reconfigurable optical add/drop multiplexers (ROADM) in wavelength division multiplexed (WDM) optical networks.…”

Section: Introductionmentioning

confidence: 99%

LCoS SLM Study and Its Application in Wavelength Selective Switch

et al. 2017

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Abstract:The Liquid-Crystal on Silicon (LCoS) spatial light modulator (SLM) has been used in wavelength selective switch (WSS) systems since the 1990s. However, most of the LCoS devices used for WSS systems have a pixel size larger than 6 µm. Although there are some negative physical effects related to smaller pixel sizes, the benefits of more available ports, larger spatial bandwidth, improved resolution, and the compactness of the whole system make the latest generation LCoS microdisplays highly appealing as the core component in WSS systems. In this review work, three specifications of the WSS system including response time, crosstalk and insertion loss, and optimization directions are discussed. With respect to response time, the achievements of liquid crystal material are briefly surveyed. For the study of crosstalk and insertion loss, related physical effects and their relation to the crosstalk or insertion loss are discussed in detail, preliminary experimental study for these physical effects based on a small pixel LCoS SLM device (GAEA device, provided by Holoeye, 3.74 µm pixel pitch, 10 megapixel resolution, telecom) is first performed, which helps with predicting and optimizing the performance of a WSS system with a small pixel size SLM. In the last part, the trend of LCoS devices for future WSS modules is discussed based on the performance of the GAEA device. Tradeoffs between multiple factors are illustrated. In this work, we present the first study, to our knowledge, of the possible application of a small pixel sized SLM as a switching component in a WSS system.

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Mode-Division Multiplexing of 2$\,\times\,$100 Gb/s Channels Using an LCOS-Based Spatial Modulator

Cited by 182 publications

References 8 publications

WDM-compatible mode-division multiplexing on a silicon chip

WDM-compatible mode-division multiplexing on a silicon chip

Review of Space-Division Multiplexing Technologies in Optical Communications

LCoS SLM Study and Its Application in Wavelength Selective Switch

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