MEASUREMENT METHOD FOR CHARACTERIZATION OF A PHOTODETECTOR
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United States of America Patent
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Issued Date -
Jul 25, 2024
app pub date -
Mar 31, 2022
filing date -
May 28, 2021
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Abstract
A measurement method for characterization of a photodetector includes illumination of the photodetector with a variable electromagnetic radiation. The variable electromagnetic radiation has a temporally oscillating radiation intensity with fixed period and amplitude. The method also includes illumination of the photodetector with a first electromagnetic radiation having a temporally constant first radiation intensity and measurement of a first output signal at the photodetector. The method further includes illumination of the photodetector with a second electromagnetic radiation having a temporally constant second radiation intensity different from the first radiation intensity and measurement of a second output signal at the photodetector. The method additionally includes determination of a non-linearity of the photodetector by comparing the measurements of the first and second output signals.
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