
Single-photon detector, photosensitive area 100 μm SPDM100B
SPDM100BDesign Tools
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LBTEK single-photon detectors operate at wavelengths of 400-1100 nm, with an anti-reflection coating applied in the 650-1100 nm range. They are available in two types: free-space input and fiber input, catering to different application scenarios. Three dark count specifications are available (<25 cps, <100 cps, <500 cps), making them suitable for weak light and single-photon detection applications. High light intensity may damage the APD, potentially reducing its detection sensitivity, and in severe cases, even causing diode breakdown. The module should operate within a temperature range of -20 to 50°C. Excessive temperature can intensify thermally excited carriers, leading to an increase in dark counts.
Key Features
- Dark Count Rate Minimum <25cps
- Saturated Count Rate >15MHz
- Free Space/Fiber Input
Application
Quantum Efficiency vs. Wavelength Diagram
| Spectral response range | 400-1100 nm |
| AR Coating | 650-1100 nm |
| Pinhole Diameter | 100 μm |
| Beamsplit Ratio | 50±3%@850nm;2%@1064nm |
| Dark count | <100 cps |
| Rise Time | ~50 ns |
| Bandwidth | >15 MHz |
| Pulse Width | <800 ps |
| Output Linearity | <5% |
| Input method | Free space |
| Trigger Polarity | Active Low: low < 0.8V; 2.5V < high < 5V |
| Output Logic | LVTTL (50Ω/High Impedance) |
| Power Supply | 12V/1.5A |
| Power Consumption | ~4W |
| Operating Temperature | -20℃-50℃ |
| Dimensional specifications | 111 mm×77 mm×31.1 mm |
Product Family: Single Photon Detectors (8 variants)
| Product | SKU | Size | Clear Aperture | Operating Wavelength | |
|---|---|---|---|---|---|
| Single-photon detector, photosensitive area 100 μm SPDM500B-PC |
SPDM500B-PC
| — | — | — | View |
| Single-photon detector, photosensitive area 100 μm SPDM500B |
SPDM500B
| — | — | — | View |
| Single-photon detector, photosensitive area 100 μm SPDM25B-PC |
SPDM25B-PC
| — | — | — | View |
| Single-photon detector, photosensitive area 100 μm SPDM25B |
SPDM25B
| — | — | — | View |
| Single-photon detector, photosensitive area 100 μm SPDM100B Current |
SPDM100B
| — | — | — | |
| Single-photon detector, photosensitive area 100 μm SPDM100B-PC |
SPDM100B-PC
| — | — | — | View |
| Single-photon detector, photosensitive area 300 μm SPD300A-PC |
SPD300A-PC
| — | — | — | View |
| Single-photon detector, photosensitive area 300 μm SPD300A-APC |
SPD300A-APC
| — | — | — | View |





