Multicore fiber for optical interconnect applications

Li, Mingjun; Hoover, Brett; Назаров, В. Н.; Butler, Douglas L.

doi:10.1109/oecc.2012.6276573

Cited by 26 publications

(12 citation statements)

References 4 publications

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“…For this reason the uncoupled-style is mostly preferred for R&D. Many core arrangements have been proposed (Fig. 1); the One-ring [16], [17] and the Dual-ring structure [18], the Linear Array [19], [20], the Two-pitch structure [21] and finally the Hexagonal close-packed structure which is also the most prominent [22]. Examples of this style, with 7 cores [15] and 19 cores [23] have already been demonstrated and used in experiments.…”

Section: Multi-core Fiber (Mcf)mentioning

confidence: 99%

Survey and Evaluation of Space Division Multiplexing: From Technologies to Optical Networks

Saridis

Alexandropoulos

Zervas

et al. 2015

IEEE Commun. Surv. Tutorials

303

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Single Mode Fiber's physical capacity boundaries will soon be reached, so alternative solutions are much needed to overcome the multiplying and remarkably large bandwidth requests. Space division multiplexing (SDM) using multicore fibers (MCF), multi-element fibers (MEF), multimode fibers (MMF) and their combination; fewmode multicore fibers (FM-MCF) or fibers based on orbital angular momentum (OAM), are considered to be the propitious stepping-stones to overcome the capacity crunch of conventional single-core fibers. We critically review research progress on SDM fibers and network components and we introduce two figures of merit (FoM) aiming in quantitative evaluation of technologies such as amplifiers, fanin/fan-out multiplexers, transmitters, switches, SDM nodes. Results show that SDM fibers achieve an 1185fold (18-fold) Spectral-Spatial Efficiency increase compared to the 276-SMF bundle (single-core fiber) currently installed on the ground. In addition, an analysis of crosstalk in MCFs shows how SDM concepts can be exploited further to fit in various optical networks, such as core, metro and especially future intra-datacenter optical interconnects. Finally, research challenges and future directions are discussed.reinforce diverse future optical network types, such as datacenters and metro/core networks, are demonstrated. Furthermore, we critically review other major networking aspects considering SDM network and node concepts and components, such as SDM Reconfigurable Optical Add/Drop Multiplexers (ROADMs), Self-homodyne detection and Multiple Input Multiple Output -Digital Signal Processing (MIMO-DSP) on SDM receivers, routing and core allocation complexity in MCFs as well as multidimensionality and granularity in switching. A study on the inter-core crosstalk interference constraint of MCFs for SDM networks is included. The outcomes of our analysis are specific MCF design rules considering the crosstalk vs fiber core-pitch relation and network link distance with regards to the end application; i.e. 10m to 1km for Intra-DC or tens to hundreds of kilometers for metro/core networks. Different network classes are examined in the light of the outcomes of this analysis, resulting in a complete report on the challenges and the role of SDM in future high-capacity scalable optical networks. Finally, section V discusses challenges, potential use-cases and future directions of SDM.

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Section: Multi-core Fiber (Mcf)mentioning

confidence: 99%

Survey and Evaluation of Space Division Multiplexing: From Technologies to Optical Networks

Saridis

Alexandropoulos

Zervas

et al. 2015

IEEE Commun. Surv. Tutorials

303

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“…In order to increase the transmission capacity, parallel OIs are extensively deployed using fiber ribbons or individual fibers but may not be enough to exploit huge optoelectronic bandwidth disparity existing between the requirement and availability of futuristic data centers and high performance computing systems [2]. OI configuration based on multicore fiber (MCF) has been expected to be a viable technology to overcome the bandwidth density drives of short-reach optical transmission systems [3]. Spacedivision multiplexing (SDM) technology using MCF shows a high potential to combat the explosive growth in data volume requirement of next-generation high-performance short reach OIs.…”

Section: Introductionmentioning

confidence: 99%

“…Most of the MCFs reported pertain to hexagonal or ring structures and not compatible with edge coupling requirement of silicon photonic transceiver. Recently, it has also been proved that rectangular arrayed MCF is more compatible with number of parallel lanes in data buses required in high performance computers as well as on-chip integrated photonic systems comparing to MCF with popular hexagonal or ring structure [3,4]. Furthermore, achieving efficient coupling of MCF to standard single core fibers (SCFs) is a significant challenge which limits the application of MCF as OI.…”

Section: Introductionmentioning

confidence: 99%

Design and optimization of photonic devices and optical fibers for space-division multiplexing

Rahman

Mishra

Pan

2018

Metro and Data Center Optical Networks and Short-Reach Links

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Citation: Rahman, B. M. ORCID: 0000-0001-6384-0961, Mishra, J. K. and Pan, C.(2018). Design and optimization of photonic devices and optical fibers for space-division multiplexing. Proceedings of SPIE, 10560, 1056007.. doi: 10.1117/12.2291522 This is the accepted version of the paper.This version of the publication may differ from the final published version. Permanent ABSTRACTAlthough, the technological breakthroughs such as WDM had allowed the capacity per fiber to be increased around tenfold every four years in the past decade, however, the capacity of the optical communication systems based on these transmission technologies is slowly becoming saturated. To satisfy the exponential growth of the Internet traffic, for the next generation short reach systems, including data center transmission and optical interconnect (OI) applications, the space-division multiplexing (SDM) can be a way forward. The SDM technology based on the multicore fiber (MCF) has recently attracted much attention as a potential approach. In this paper, design strategy of computer-compatible 8-core trench-assisted MCF (TA-MCF) is presented to reduce the intercore crosstalk. Moreover, the influence of butt-coupled TA-MCF OI on coupling loss is also discussed. On the other hand, another alternative approach, the mode division multiplexing (MDM) is also showing promise and mode (de)multiplexer is one of the key devices in such a MDM system. Designs of mode splitters using asymmetric directional couplers for the fundamental quasi-TE (TM) mode with the higher order quasi-TE (TM) modes (de)multiplexer including the ( ), ( , ( , and ( ) modes are optimized by using a full-vectorial H-field finite element method.

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“…Different MCF structures have been proposed such as hexagonal, one-ring and linear array designs [1][2][3][4][5]. One most important aspect for MCF designs is controlling the crosstalk among the cores.…”

Section: Introductionmentioning

confidence: 99%