Optical waveguides – With optical coupler – Particular coupling structure
Patent
1992-05-08
1994-03-01
Ullam, Akm E.
Optical waveguides
With optical coupler
Particular coupling structure
359127, 25022712, G02B 600, G02B 626, H01J 116
Patent
active
052915697
ABSTRACT:
A fiberoptic delay line architecture for generating multiple replicas of an input RF signal with variable replica-to-replica time resolution is provided in which the required hardware is kept to a minimum. A series of cascaded binary fiberoptic segment delay lines is used in which each cascaded binary fiberoptic segment delay line has an equal and defined number of segments but variable minimum time resolution. The minimum time resolution of each cascaded binary fiberoptic segment delay line increases by a multiple of two compared to the prior cascaded binary fiberoptic segment delay line. In this manner, the required number of segments and switches increases in a log.sub.2 .times.log.sub.2 relationship as the number of desired replicas and possible replica-to-replica delay values increases.
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Davies David K.
Goutzoulis Anastasios P.
LeDonne Eugene
Ullam Akm E.
Westinghouse Electric Corp.
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