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Circular ring resonator distributive electromagnetic signal processor
(United States. Patent and Trademark Office, 1991-06-04)
An electromagnetic signal processor is disclosed comprising an input waveguide, an intermediate waveguide, and an output waveguide. The intermediate waveguide comprises two portions having substantially equal electromagnetic ...
Progressively monitorable fire alarm system
(United States. Patent and Trademark Office, 1991-02-19)
A method for producing reflectors in a continuous length of optical fiber is disclosed. The present process includes the steps of preparing the ends of two or more optical fibers, placing one or more of these fibers in a ...