Light detector having a photodiode with bias control

Details Light detector having a photodiode with bias control Light detector having a photodiode with bias control

G - Physics

01

N

73/53

G01N 21/84 (2006.01) G01D 5/26 (2006.01) G01S 7/491 (2006.01) H03G 3/20 (2006.01) H04B 10/148 (2006.01)

Patent

CA 1243857

ABSTRACT The detector comprises an avalanche photodiode for receiving a light beam, a circuit for measuring the mean current across the avalanche photodiode and a bias voltage source. That source is controlled by the circuit for applying to the photodiode a bias voltage such that the means current across the diode be substantially equal to an adjustable set value,

491245

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