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Parallel optical sampler

United States Patent

May 20, 2014
View the Complete Patent at the US Patent & Trademark Office
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An optical sampler includes a first and second 1.times.n optical beam splitters splitting an input optical sampling signal and an optical analog input signal into n parallel channels, respectively, a plurality of optical delay elements providing n parallel delayed input optical sampling signals, n photodiodes converting the n parallel optical analog input signals into n respective electrical output signals, and n optical modulators modulating the input optical sampling signal or the optical analog input signal by the respective electrical output signals, and providing n successive optical samples of the optical analog input signal. A plurality of output photodiodes and eADCs convert the n successive optical samples to n successive digital samples. The optical modulator may be a photodiode interconnected Mach-Zehnder Modulator. A method of sampling the optical analog input signal is disclosed.
Tauke-Pedretti; Anna (Albuquerque, NM), Skogen; Erik J. (Albuquerque, NM), Vawter; Gregory A. (Corrales, NM)
Sandia Corporation (Albuquerque, NM)
13/ 292,861
November 9, 2011
GOVERNMENT INTEREST STATEMENT This invention was developed under Contract DE-AC04-94AL85000 between Sandia Corporation and the U.S. Department of Energy. The U.S. Government has certain rights in this invention.