CUED Publications database

High bandwidth optical links over multimode fibre

White, IH and Webster, M and Penty, RV (1999) High bandwidth optical links over multimode fibre. Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS, 2. pp. 695-696. ISSN 1092-8081

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A Fabry-Perot laser source operating at 1300 nm was modulated at 2.5 Gb/s with a 2 7 -1 pseudo-random bit sequence. Three techniques were examined for increasing the bandwidth of optical links using multimode fiber (MMF). With an offset launch of 14 μm, the eye remained open after the 2 km link of 50 μm core MMF containing seven connectors and three splices. An approximate four-fold bandwidth improvement was obtained using the offset launch with a bandwidth-length product of 7.5 Gb/ and a bit error rate below 10 -10 . The bandwidth enhancement was stable against environmental influences on the fiber link, such as mechanical agitation. Detailed simulations demonstrated that the technique allows enhanced operating bandwidths in over 99% of existing link.

Item Type: Article
Divisions: Div B > Photonics
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:02
Last Modified: 03 Aug 2017 03:19