Symmetrical 2-D Hermite-Gaussian Square Launch for High Bit Rate Transmission in Multimode Fiber Links

Geng, L.; Lee, S. H.; William, K. A.; Penty, R.V.; White, I.H.; Cunningham, David

doi:10.1364/ofc.2011.owj5

Cited by 9 publications

(7 citation statements)

References 2 publications

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“…For the investigation of radial offsets, it is observed that a radial offset, b of 3µm achieves the best impulse response. This is consistent with experimental results from MDM of HG modes [30,31] where the optimal radial launch for alleviating modal dispersion and increasing bandwidth capacity in MMF is less than 3µm. Fig.…”

Section: Simulation Of Spiral-phased Ring Modessupporting

confidence: 90%

MDM of Hybrid Modes in Multimode Fiber

Amphawan¹,

Fazea²,

Sajat³

et al. 2015

EECSI

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This paper reports on MDM of a combination of helical-phased modes comprising ring modes and HG modes. 44Gbps data transmission is achieved by a wavelength division multiplexing (WDM)-MDM system of two center-launched helical-phased ring modes and two 3µm radially offset HG mode on wavelengths 1550.12nm and 1551.72nm for a 1500m-long multimode fiber. The power coupling coefficients, degenerate mode group delays and bit error rates are analyzed for different HG modes and radial offsets.

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Section: Simulation Of Spiral-phased Ring Modessupporting

confidence: 90%

MDM of Hybrid Modes in Multimode Fiber

Amphawan¹,

Fazea²,

Sajat³

et al. 2015

EECSI

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“…One way to improve the bandwidth of the existing OM3 MMF links is to use a selective modal launch. Utilizing the selective launch and an offset launch was proposed in order to improve bandwidth and fiber characterization in the 1550 nm [17], 1310 nm [18] and 664 nm [19] regimes. These schemes employed a single-mode source and a spatial light modulator (SLM) to selectively launch light into specific mode groups of the MMF.…”

Section: A Selective Mode Launchmentioning

confidence: 99%

“…As the speed increased to 25 Gbps, the specified link length has been reduced to 100 m. This has limited the infrastructure cabling deployment in some data centers and has not allowed full utilization of the installed base of OM3 and OM4 at 25 Gbps. Selective modal launch (SML) is one technique that can be used to increase the bandwidth of MMF, and has been demonstrated at 1550 nm [17], 1310 nm [18] and 664 nm [19]. These schemes employed a single-mode source and a spatial light modulator (SLM) to selectively launch light into to the MMF.…”

Section: Introductionmentioning

confidence: 99%

Reach Extension and Capacity Enhancement of VCSEL-Based Transmission Over Single-Lane MMF Links

Tatarczak

Motaghiannezam

Kocot

et al. 2017

J. Lightwave Technol.

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“…The one-dimensional HG launch excited predominantly mid-ordered modes, enhancing the bandwidth by more than five times and achieving 10Gb/s through a 220m MMF. In [40,41], the one-dimensional HG mode profile varying only a single axis was extended to a two-dimensional square profile symmetrical about the x-axis and y-axis but with opposite phase distributions on both axes, achieving 10Gb/s data transmission and extending the link yield to 250m.…”

Section: Background and Literature Surveymentioning

confidence: 99%

Investigation of channel spacing for Hermite-Gaussian mode division multiplexing in multimode fiber

Amphawan

Fazea

Ibrahim

2015

2015 IEEE 11th International Colloquium on Signal Processing &Amp; Its Applications (CSPA)

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Mode division multiplexing (MDM) may be used to increase the capacity of multimode fiber interconnects for data centers. This paper demonstrates the importance of controlling the channel spacing of a MDM system capitalizing on Hermite-Gaussian (HG) modes in order to mitigate modal dispersion and minimize the average system bit-error rate. The effect of channel spacing of a 25-channel hybrid MDM-wavelength division multiplexing (WDM) system was examined through the x-index and y-index separations of Hermite polynomials of HG modes for different MMF lengths. Simulations prove that by controlling the index separations of the Hermite polynomials, acceptable BER was achieved for 25Gb/s data transmission for a distance of 800 meters for a 25-channel HG-based MDM-WDM system at a center wavelength of 1550.12nm. The optimal x-index and y-index Hermite polynomial separations for the HG modes are 2, 3 and 4.

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Symmetrical 2-D Hermite-Gaussian Square Launch for High Bit Rate Transmission in Multimode Fiber Links

Cited by 9 publications

References 2 publications

MDM of Hybrid Modes in Multimode Fiber

MDM of Hybrid Modes in Multimode Fiber

Reach Extension and Capacity Enhancement of VCSEL-Based Transmission Over Single-Lane MMF Links

Investigation of channel spacing for Hermite-Gaussian mode division multiplexing in multimode fiber

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