Frequency selective system

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 10574374
APP PUB NO 20190229823A1
SERIAL NO

15880242

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A frequency-selective system that may be used as, or as part of, an add/drop multiplexer. An input signal is fed to a Mach-Zehnder interferometer configured to drop, or suppress, by destructive interference, a signal component in a first frequency band from among a plurality of frequency bands. One or more bandpass filters in one arm of the Mach-Zehnder interferometer suppress other frequencies, outside of the first frequency band, so that signals at these other frequencies are not suppressed by destructive interference and are present at the output of the Mach-Zehnder interferometer. A coupler connected after the output of the Mach-Zehnder interferometer adds, into the signal path, a replacement for the dropped signal.

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Patent Owner(s)

Patent OwnerAddress
RAYTHEON APPLIED SIGNAL TECHNOLOGY INC400 WEST CALIFORNIA AVENUE SUNNYVALE CA 94086

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ready, Michael Santa Cruz, US 2 13

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