SYSTEM AND METHOD FOR REMOVING FAR FIELD LIMITATIONS IN MICROWAVE PHOTONIC ARBITRARY WAVEFORM GENERATORS
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United States of America Patent
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Issued Date -
Nov 3, 2016
app pub date -
Dec 28, 2015
filing date -
Mar 15, 2013
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Abstract
A photonic waveform generator and a method of generating an electrical waveform based on a photonic signal are disclosed. The generator includes an input port for receiving an optical signal, a pulse shaper coupled to the input port and configured to Fourier transform the optical signal and apply a pre-distort waveform onto optical spectrum of the optical signal, a dispersive pulse stretcher coupled to the pulse shaper, an optical-to-electrical converter coupled to the dispersive pulse stretcher, and an output port coupled to the optical-to-electrical converter, the pre-distortion removes distortion of the electrical signal that exists in the absence of the pre-distortion caused by violation of far field limitation between the optical signal and the electrical signal.
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