Characterization of equalized 10-Gb/s multimode fibre LAN links using transverse 7-tap analog FIR filter in 0.13-μm CMOS

Risteski, Aleksandar; Reynolds, Scott; Tierno, J.; Schares, Laurent; Gowda, Shilpa K; Kash, J. A.; Pepeljugoski, P.

doi:10.1049/cp:20050617

Cited by 3 publications

(1 citation statement)

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“…Both these launches avoid lower-order axial modes where the refractive index imperfections are potent. Offset launch has been demonstrated using single mode fiber [14], analog filters [15] and holographic techniques [9,10]. Another approach for avoiding the central core region in MMF is the selective excitation of donut modes.…”

Section: Introductionmentioning

confidence: 99%

Effect of Vortex Order on Helical-Phased Donut Mode Launch in Multimode Fiber

Amphawan¹,

Fazea²,

Elfouly³

et al. 2015

adv sci lett

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Optical fiber sensors based on mode division multiplexing (MDM) play an increasingly vital role for real-time multiparameter measurements. For multimode fibers, the central core region typically has defects in the refractive index profile, thus limiting the stability of lower-order modes for MDM. To avoid the central core region, this paper introduces a new launch based on helical-phased ring modes in multimode fiber using a vertical-cavity surface-emitting laser (VCSEL) array and a vortex lens. A data rate of 14 Gbit/s for a multimode fiber length of 1200 meters is achieved at a wavelength of 1550.12nm. The transverse electric field, power coupling coefficients and eye diagrams are analyzed.

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