Weak-Light Readout Collection on the Quantum Effect Photoelectric Sensor
Keyword(s):
The weak-light characteristics of the GaAs/InGaAs quantum effect photoelectric sensor are presented. In order to explore its higher sensitive application because of higher quantum efficiency, a readout integrated circuit (ROIC) of the capacitor feedback transimpendance amplifier (CTIA) was designed to deal with voltage response of novel sensor. The readout circuit integration was designed to match 2×8 the photoelectric sensor array. A 633nm laser beam shot to the window of sensor with radiation intensity 2nW the readout response voltage was 225mV and 4.5E +07V /W responsivity at 120K and 44.8μs integration time when biased voltage up to -3V. Even under 0.5nw shooting,we still can see the high sensitivity.
Keyword(s):
2013 ◽
2015 ◽
Vol 9
(1)
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pp. 170-174
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Keyword(s):
1997 ◽
Vol 26
(6)
◽
pp. 765-772
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