Differential optical receiver for avalanche photodiode and SiPM
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United States of America Patent
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Jun 23, 2015
Grant Date -
Oct 2, 2014
app pub date -
Mar 26, 2013
filing date -
Mar 26, 2013
priority date (Note) -
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Abstract
A device and method to protect an APD or SiPM optical receiver against photodetector voltage supply variation is presented. A differential trans-impedance amplifier includes one input connected to the photodetector and the other input connected to a high voltage supply variation sensing device. The sensing element includes a circuit replicating the impedance of the photodetector.
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