Performance of fractional tap-spacing equalizers for long-haul high-capacity digital fibre-optic communication systems
It is known that for data transmission above 100 Mbits s-1 multimode fibre systems, working at 1.3 µm wavelength, are more modal-dispersion-limited than loss-limited. Then some form of baseband equalization is highly desirable. Baseband equalizers are usually made in the form of a transverse filter...
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| Formato: | artículo |
| Fecha de publicación: | 1986 |
| País: | España |
| Recursos: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/87250 |
| Acesso em linha: | https://hdl.handle.net/2117/87250 https://dx.doi.org/10.1007/BF02030989 |
| Access Level: | acceso abierto |
| Palavra-chave: | Optical fibers Fibres òptiques Àrees temàtiques de la UPC::Enginyeria de la telecomunicació |
| Resumo: | It is known that for data transmission above 100 Mbits s-1 multimode fibre systems, working at 1.3 µm wavelength, are more modal-dispersion-limited than loss-limited. Then some form of baseband equalization is highly desirable. Baseband equalizers are usually made in the form of a transverse filter with variable tap gains and tap spacing equal to the symbol spacingT. However, the performance of these equalizers depends critically on the timing phase. To overcome this difficulty, in this paper we analyse the performances of fractional tap-spacing equalizers that have a tap spacing smaller thanT. Results obtained show that this type of equalizer gives satisfactory performance for a broad continuous range of timing phase values. It allows the application of simple clock recovery schemes in the receiver. |
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