Variable weight fiber optic transversal filter

Details Variable weight fiber optic transversal filter Variable weight fiber optic transversal filter

1990-02-26

1991-03-05

Healy, Brian

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

350 9611, 350 9616, 350311, 455612, 455613, G02B 626, G02F 100

Patent

active

049972499

ABSTRACT:
A transversal filter uses optical components to provide for a wide bandwi, greater than 10 GHz signal processing capability. rf modulated optical signals are fed over different lengths of optical fibers to impart appropriate tap delays and each is coupled to an integrated optical coupler. Each of the integrated optical couplers have the capability to introduce variable positive and negative weights. Incoherent summing means receive the modulated signals and feed them to an interconnected detector to thereby provide appropriate positive and negative variable weighted signals.

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patent: 4910726 (1990-03-01), Stanley

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