Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1989-02-07
2000-07-18
Moskowitz, Nelson
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
356349, 364822, 359308, 342 58, G02B 2746, G06G 7195
Patent
active
060915234
ABSTRACT:
A multi-channel receiver which exploites the parallel processing advantages of an optical signal processor is used to facilitate 100 percent intercept of an incomming RF signal in a dense RF environment. The receiver performs real time parallel signal processing to effectively capture a given signal of interest. The receiver modulates a laser beam with incoming RF signals. The modulated laser beam is then Fourier transformed, channelized into an array of signals of varying frequencies, optically filtered and then down converted into their original radio frequencies with only the pass characteristics altered so that the captured signal can be readily identified. An electronic controller is used to control the pass structure of the optical filter which can be reconfigured in real time to selectively pass signals having the desired characteristics.
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Anderson Terry J.
Hoch Jr. Karl J.
Moskowitz Nelson
Northrop Grumman Corporation
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