Optical frequency divider based on an electro-optical-modulator frequency comb
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United States of America Patent
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Feb 27, 2018
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Feb 25, 2016
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Feb 26, 2015
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Abstract
Microwave-frequency signal generation by generating multiple sideband optical signals separated by phase-modulation frequency fM, generating beat signals between one or two sidebands and one or two optical reference signals, generating a loop-filtered error signal by comparing an electrical reference signal to one of the beat signals or their difference, and controlling with the error signal in a phase-locked loop arrangement a voltage-controlled oscillator (VCO) that drives the sideband generation at the frequency fM. A portion of the VCO output is the generated microwave-frequency signal.
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