Photonic CDMA by Coherent Matched Filtering Using Time-Addressed Coding in Optical Ladder Networks

Sampson, David, Griffin, R.A. and Jackson, D.A. (1994) Photonic CDMA by Coherent Matched Filtering Using Time-Addressed Coding in Optical Ladder Networks Journal of Lightwave Technology, 12 (11). pp. 2001-2010.

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Abstract

We investigate a photonic CDMA system based on coherent matched filtering in ladder networks, employing both time-spreading and selective interference to discriminate wanted from unwanted signals. A theory is presented for time-resolved pulses which takes account of arbitrary source coherence. We examine the key issues of optical source requirements and phase and polarization control of en/decoder networks, and demonstrate key concepts experimentally. The crosstalk-limited signal-to-noise ratio is shown to be much higher than previous, purely incoherent systems. CDMA systems using coherent matched filtering therefore offer renewed promise for practical high capacity, multigigabit/s, multiuser networks.

Item Type:	Article
Divisions :	Faculty of Engineering and Physical Sciences Faculty of Health and Medical Sciences
Authors :	Name Email ORCID Sampson, David d.sampson@surrey.ac.uk Griffin, R.A. Jackson, D.A.
Date :	1994
DOI :	10.1109/50.336066
Uncontrolled Keywords :	Crosstalk, Light polarization, Light sources, Phase control, Signal filtering and prediction, Signal to noise ratio, Coherent matched filtering, En/decoder networks, Optical ladder networks, Photonic code division multiple access system, Time addressed coding, Time resolved pulses, Time spreading, Ladder networks
Depositing User :	Maria Rodriguez-Marquez
Date Deposited :	12 Jun 2018 10:49
Last Modified :	19 Sep 2018 11:33
URI:	http://epubs.surrey.ac.uk/id/eprint/846973

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