Visible-Light Single-Photon Detector SPDSi
Langyan Optoelectronics' SPDSi photon-counting module is an ultrasensitive Si-APD photodetector operating in linear or Geiger mode. Gain exceeds 60 dB in Geiger mode. A distinctive high-performance active-quenching circuit enables continuous single-photon detection and detection gates of arbitrary width and period. The circuit provides 20 dB avalanche suppression to optimize Si-APD performance.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Spectral response range | Min ：200 nm； Max ：1060 nm |
| Detection efficiency [@200 nm] | 2 % |
| Detection efficiency [@700 nm] | 65 % |
| Detection efficiency [@850 nm] | 45 % |
| Detection efficiency [@1060 nm] | 3 % |
| Dark count | Min ：200 cps； Max ：2000 cps |
| Dead time | 50 ns |
| Afterpulse | Min ：3 %； Typical ：5 %； Max ：8 % |
| Time Jitter | Min ：300 ps； Typical ：350 ps； Max ：500 ps |
| Saturation count rate | 10 Mcps |
| Photosensitive area | 500 μm |
| APD Cooling temperature | -20 ℃ |
| Operating temperature | Min ：-15 ℃； Max ：50 ℃ |
| Output Signal level Standard | LVTTL |
| Output Signal pulse width | Min ：5 ns； Typical ：30 ns |
| Gate Pulse Input Level [Disable = low] | Min ：0 V； Max ：0.4 V |
| Gate Pulse Input Level [Enable = high] | Min ：2 V； Max ：3.3 V |
| Supply voltage | Min ：22 V； Typical ：24 V； Max ：28 V |
| Supply current | 0.5 A |
Applications
Key Features
Datasheet
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Supplier Information
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