Synchronous multifrequency optical network

Details Synchronous multifrequency optical network Synchronous multifrequency optical network

1989-11-06

1990-09-18

Healy, Brian

Multiplex communications

Wide area network

Packet switching

350 9615, 370 3, 370 4, 455606, 455607, 455612, 455617, G02B 628, H04J 100, H04J 300, G02F 100

Patent

active

049573403

ABSTRACT:
A multi wavelength optical network including a plurality of wavelength multiplexed nodes each having a single frequency optical signal transmitting means (13) and a multi wavelength optical signal receiving means (15), an optical transmission network including a passive optical coupling means (12) interconnecting said nodes whereby single frequency signals transmitted from each node are propagated via the coupling means to all the nodes, each node also including wavelength demultiplexing means (14) through which received signals are applied to the multi wavelength receiving means and timing and control means (17, 18, 19) arranged to control the timing of signals transmitted by the node over the network so that the signals from all the nodes are synchronous at the coupler.

REFERENCES:
patent: 4546466 (1985-10-01), Lopiccolo
patent: 4628501 (1986-12-01), Loscoe
patent: 4631718 (1986-12-01), Miyao
patent: 4654889 (1987-03-01), Shutterly
patent: 4748617 (1988-05-01), Drewlo
patent: 4801190 (1989-01-01), Imoto
patent: 4905219 (1990-02-01), Barr et al.

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