LASER DIODE ARRANGEMENT, METHOD OF OPERATING A LASER DIODE AND SCANNING MICROSCOPE DEVICE COMPRISING A LASER DIODE
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United States of America Patent
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Issued Date -
Aug 15, 2024
app pub date -
Jul 8, 2022
filing date -
Jul 9, 2021
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Abstract
A laser diode arrangement is provided that comprises a laser diode, a driver (EPS) to provide an AC-electric power to the laser diode, a first feedback component (FB1) and a second feedback component (FB2). The first feedback component (FB1) is configured to sense an optical output of the laser diode and comprises an optical power control module (OPCM) to control a first waveform characteristic of the AC-electric power to maintain the sensed optical output (PM) close to a first desired value (PD). The second feedback component (FB2) is configured to estimate a temperature (TEST) of the laser diode by sensing a voltage-current characteristic of the laser diode and comprises a temperature control module (TCM) that is configured to control a second waveform characteristic of the AC-electric power, different from the first waveform characteristic to maintain the estimated temperature (TEST) close to a second desired value (TOPT).
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