An optical CDMA system based on spectral encoding of LED
- 1 April 1993
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 5 (4) , 479-482
- https://doi.org/10.1109/68.212705
Abstract
A optical code-division multiple access (CDMA) system based on amplitude spectral encoding of low-cost broadband sources such as light-emitting diodes is presented. The proposed system uses a standard nondispersive lens-grating apparatus and simple direct-detection receivers. It is shown that by assigning to N subscribers the N cycles shifts of a single unipolar m-sequence of period N, complete orthogonality between the users can be achieved, provided that the spectrum is properly equalized. It is also shown that without any equalization, and for N=511, up to 200 users can transmit asynchronously with an average error probability equal to 10/sup -9/, depending on the received power level. An aggregate network throughput of 100 Gb/s can therefore be obtained.Keywords
This publication has 5 references indexed in Scilit:
- Broadband multichannel WDM transmission with superluminescent diodes and LEDsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Demonstration of data transmission using coherent correlation to reconstruct a coded pulse sequenceIEEE Photonics Technology Letters, 1992
- Encoding and Decoding of Femtosecond Pulses for Code-Division Multiple AccessPublished by Optica Publishing Group ,1989
- High-resolution femtosecond pulse shapingJournal of the Optical Society of America B, 1988
- Crosscorrelation properties of pseudorandom and related sequencesProceedings of the IEEE, 1980