Abstract
This paper reports, for the first time, the coding and decoding of code-division multiple-access (CDMA) signals for use in optical access networks using electronic transversal filters at a chip rate of 18 Gchips/s, a ninefold improvement over previous demonstrations. We demonstrate a 2-user ECDMA system. The use of 7-chip transversal filters gives a potential for 7 users, where each user has a data rate of 1.25 Gb/s. This is comparable to typical all-optical CDMA systems but with potentially lower cost, power consumption and complexity. Error-free transmission of a 1.25 Gb/s electronic CDMA user signal, with and without a single interferer, over 10 km of single-mode fiber is reported for the first time.
Original language | English |
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Pages (from-to) | 306-313 |
Number of pages | 8 |
Journal | Journal of Lightwave Technology |
Volume | 27 |
Issue number | 3 |
DOIs | |
Publication status | Published - 1 Feb 2009 |
Keywords
- Access networks
- Electronic code-division multiple-access (CDMA)
- Gold codes
- Multi-user interference
- Optical CDMA
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics