Optical fiber communication for local area networks with frequen

Details Optical fiber communication for local area networks with frequen Optical fiber communication for local area networks with frequen

1985-05-10

1988-10-04

Griffin,

Multiplex communications

Wide area network

Packet switching

350358, 455619, H04B 900

Patent

active

047759720

ABSTRACT:
A method and associated system for providing multi-channel transmission of digital and broadband video information in optical fiber communication for local area networks through frequency-division-multiplexing, comprising the steps of generating a plurality of closely spaced optical carrier wave pairs with the optical carrier waves within each optical carrier wave pair having a predetermined separation frequency between one another, assigning each of the plurality of optical carrier wave pairs to a predetermined frequency slot and optically combining the plurality of optical carrier wave pairs to provide a multiplexed optical output wave. Advantageously, in addition to direct detection the plurality of optical carrier wave pairs may be detected by opto-electronic heterodyne detection and/or incoherent optical-heterodyne detection to electronically recover the optical carrier wave pairs.

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Izutsu et al., I.E.E.E. Journal of Quantum Electronics; "Integrated Optical SSB/Modulator/Frequency Shifter", vol. QE-17,-No. 11,-Nov. 1981; pp. 2225-2227.
Favve et al.; I.E.E.E. Journal of Quantum Electronics; "Progress Towards Heterodyne-Type Single-Mode Fiber Communication Systems; "vol. Qe-17, No. 6; Jun. 1981; pp. 897-899.

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