23 February 2005 Increasing bandwidth-distance product in 10Gb/s multimode fiber based links
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In IEEE 802.3ae standard two links based on multimode fibers are specified: 80 meters basing on standards multimode fiber and 300 meters incorporating next generation multimode fiber (NGMMF). Increase of reach in NGMMF links is achieved by restricting fiber refractive index profile, source launch parameters like encircled flux and alignments. Further increase by tightening those restrictions won't come without rising total link cost. The other way of increasing link length is using equalization technique to filter out so called ghost signal and decrease intersymbol interference penalty. This can increase the link length of both standard and next generation fiber regardless of launch parameters and alignments. Principles and various implementation of this technique are the subject of this paper. Also the results achieved by various scientist are cited.
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Zbigniew Karwat, Zbigniew Karwat, } "Increasing bandwidth-distance product in 10Gb/s multimode fiber based links", Proc. SPIE 5775, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments III, (23 February 2005); doi: 10.1117/12.610635; https://doi.org/10.1117/12.610635


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