A high-speed optical star network using TDMA and all-optical demultiplexing techniques

The authors demonstrate the use of time-division multiplexing (TDM) to realize a high capacity optical star network. The fundamental element of the demonstration network is a 10 ps, wavelength tunable, low jitter, pulse source. Electrical data is encoded onto three optical pulse trains, and the resu...

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Bibliographic Details
Published in:IEEE journal on selected areas in communications 1996-06, Vol.14 (5), p.1030-1038
Main Authors: Barry, L.P., Guignard, P., Debeau, J., Boittin, R., Bernard, M.
Format: Article
Language:English
Subjects:
Fiber nonlinear optics
High speed optical techniques
Jitter
Nonlinear optics
Optical feedback
Optical fiber networks
Optical pulses
Optical receivers
Optical solitons
Time division multiple access
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Summary:The authors demonstrate the use of time-division multiplexing (TDM) to realize a high capacity optical star network. The fundamental element of the demonstration network is a 10 ps, wavelength tunable, low jitter, pulse source. Electrical data is encoded onto three optical pulse trains, and the resultant low duty cycle optical data channels are multiplexed together using 25 ps fiber delay lines. This gives an overall network capacity of 40 Gb/s. A nonlinear optical loop mirror (NOLM) is used to carry out the demultiplexing at the station receiver. The channel to be switched out can be selected by adjusting the phase of the electrical signal used to generate the control pulses for the NOLM. By using external injection into a gain-switched distributed feedback (DFB) laser we are able to obtain very low jitter control pulses of 4-ps duration (RMS jitter
ISSN:0733-8716
1558-0008
DOI:10.1109/49.510925