Goptica Optical SPD500 is an ultra sensitive photodetector based on Si APD. The detection band covers 200-1060 nm and can operate in linear mode and Geiger mode. Gain exceeds 60 dB in Geiger mode. The SPD500's unique high-performance active suppression circuit enables continuous single photon detection and can load detection gates of any width and period. This circuit achieves avalanche suppression greater than 20 dB, thereby maximizing the performance of SPD500. The detection efficiency in the 700 nm band exceeds 60%, with a dark count of 200-500 CPS and a dead time of less than 50 ns.
Product manual
SPD500 specification parameters
parameter
Supply voltage"
Power supply current
@200 nm
@700 nm
@850 nm
@1060 nm
2
/
65
45
3
Death time
Saturation count rate*2
Disable = LVTTL low
Enable = LVTTL high
0
0.4
3.3
5000
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