US2023152224A1PendingUtilityA1
Optical sources for fluorescent lifetime analysis
Est. expiryMay 20, 2035(~8.8 yrs left)· nominal 20-yr term from priority
Inventors:Jonathan M. RothbergJason W. SicklerLawrence C. WestFaisal R. AhmadBrendan HuangPaul E. GlennJonathan SchultzJose Camara
H10F 39/802H01S 5/0428G01N 21/645G01N 2201/0612G01N 2201/0697G01S 7/4863H05B 47/16G01N 21/6408G01N 21/6458H05B 45/335G01N 2201/0621Y02B20/40G01N 2021/6439G01N 2021/6441G01S 7/484G01S 17/894H01L 27/14603
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Claims
Abstract
Compact optical sources and methods for producing short and ultrashort optical pulses are described. A semiconductor laser or LED may be driven with a bipolar waveform to generate optical pulses with FWHM durations as short as approximately 85 ps having suppressed tail emission. The pulsed optical sources may be used for fluorescent lifetime analysis of biological samples and time-of-flight imaging, among other applications.
Claims
exact text as granted — not AI-modified1 . A pulsed optical source comprising: a semiconductor diode configured to emit light; and a driving circuit that includes a transistor coupled to a terminal of the semiconductor diode, wherein the driving circuit is configured to receive a unipolar pulse and apply a bipolar electrical pulse to the semiconductor diode responsive to receiving the unipolar pulse.
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