Photodetector comprising a single photon avalanche diode and a capacitor
First Claim
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1. A photodetector comprising:
- a single photon avalanche diode (SPAD); and
a capacitor configured tobe charged, while the SPAD is in a disarmed state, with a bias voltage by a voltage source, andsupply, when the SPAD is put in an armed state, the bias voltage to an output node of the SPAD such that a voltage across the SPAD is greater than a breakdown voltage of the SPAD.
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Abstract
An exemplary photodetector includes a SPAD and a capacitor. The capacitor is configured to be charged, while the SPAD is in a disarmed state, with a bias voltage by a voltage source. The capacitor is further configured to supply, when the SPAD is put in an armed state, the bias voltage to an output node of the SPAD such that a voltage across the SPAD is greater than a breakdown voltage of the SPAD.
180 Citations
30 Claims
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1. A photodetector comprising:
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a single photon avalanche diode (SPAD); and a capacitor configured to be charged, while the SPAD is in a disarmed state, with a bias voltage by a voltage source, and supply, when the SPAD is put in an armed state, the bias voltage to an output node of the SPAD such that a voltage across the SPAD is greater than a breakdown voltage of the SPAD. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A method comprising:
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charging a capacitor connected to a single photon avalanche diode (SPAD) with a bias voltage while the SPAD is in a disarmed state; and using the capacitor to supply, when the SPAD is put in an armed state, the bias voltage to an output node of the SPAD such that a voltage across the SPAD is greater than a breakdown voltage of the SPAD. - View Dependent Claims (29, 30)
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Specification