Optical multiplex systems

Details Optical multiplex systems Optical multiplex systems

1986-11-24

1988-08-02

Griffin, Robert L.

Multiplex communications

Wide area network

Packet switching

455607, 455612, 455617, H04B 900

Patent

active

047617772

ABSTRACT:
An optical multiplex system has an LED which supplies broad band optical radiation to one end of a fiber-optic cable that extends, via displacement transducers connected in series, to a receiver. Each transducer has a movable filter plate with a neutral region and a region that attenuates radiation in different respective narrow bands of wavelengths. The receiver includes a detector that receives radiation from the other end of the cable via a filter. The filter has a variable narrow band transmission characteristic so that radiation in either one of the narrow bands can be selected and supplied to the detector which thereby gives an output representative of the state of the selected transducer.

REFERENCES:
patent: 3316348 (1967-04-01), Hufnagel et al.
patent: 3617710 (1971-11-01), Honeycutt et al.
patent: 3873825 (1975-03-01), Jones et al.
patent: 4406003 (1983-09-01), Eberly et al.
patent: 4543961 (1985-10-01), Brown

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