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HIGH FREQUENCY MODULATION CIRCUITS BASED ON PHTOCONDUCTIVE WIDE BANDGAP SWITCHES

United States Patent Application

20140263976
A1
View the Complete Application at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
Methods, systems, and devices for high voltage and/or high frequency modulation. In one aspect, an optoelectronic modulation system includes an array of two or more photoconductive switch units each including a wide bandgap photoconductive material coupled between a first electrode and a second electrode, a light source optically coupled to the WBGP material of each photoconductive switch unit via a light path, in which the light path splits into multiple light paths to optically interface with each WBGP material, such that a time delay of emitted light exists along each subsequent split light path, and in which the WBGP material conducts an electrical signal when a light signal is transmitted to the WBGP material, and an output to transmit the electrical signal conducted by each photoconductive switch unit. The time delay of the photons emitted through the light path is substantially equivalent to the time delay of the electrical signal.
Sampayan, Stephen (Manteca, CA)
LAWRENCE LIVERMORE NATIONAL SECURITY, LLC (LIVERMORE CA)
14/ 218,860
March 18, 2014
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH [0002] The United States Government has rights in this invention pursuant to Contract No. DE-AC52-07NA27344 between the U.S. Department of Energy and Lawrence Livermore National Security, LLC, for the operation of Lawrence Livermore National Laboratory.