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Si Single Photon Detector (Si-SPD)
Dimension-Labs is proud to present the DL-SPD Series of single-photon detector modules, engineered to detect even the faintest single photons with exceptional precision. Utilizing single-photon avalanche photodiodes (SPADs) operating in Geiger mode, these modules deliver ultra-high sensitivity across a broad spectral range from visible to near-infrared (400-1700nm). They achieve a peak detection efficiency of 60% at 650 nm, coupled with a dark count rate as low as 100 Hz, a maximum count rate of 20 MHz, and afterpulsing probability below 1%. The modules support both free-space and fiber-coupled inputs, featuring a compact design that allows for flexible installation and easy integration into diverse systems. Ideal for a wide range of applications, they are well-suited for use by researchers in scientific institutions and professionals in industrial settings alike.
Models & Specifications
| Model | DL-SPD-400-1100-20M-100 |
|---|---|
| Detector Type | Si |
| Connector Style | Free Space |
| Wavelength Range (nm) | 400-1100 |
| Active Detector Size (µm) | Φ500 |
| Typical Photon Detection Efficiency | 60%@650nm |
| Gain Adjustment Factor | 4 |
| Count Rate (Max) (Hz) | 20M |
| Dark Count Rate (Hz) | 100@Gain Min <1000@Gain Max |
| Timing Resolution (ps) | <1000 |
| Dead Time (ns) | <30 |
| Gating Function | Yes |
| Operating Temperature Range (℃) | 0~40 |
| Storage Temperature Range (℃) | -40 ~ 70 |
| Dimensions (W × H × D) (mm) | 86×42×111.5 |
| Weight (g) | 276 |
