- Photon-counting Radiometers
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QRAD Photon-counting Radiometers are single-photon detectors with calibrated detection efficiency. The model based on a Si single-photon avalanche diode (SPAD) covers visible and near-infrared range, while the model with an InGaAs SPAD is suitable for fiber-communication wavelengths.
QS-SP/QS-IGA Single-photon Detector
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Compact design with temperature-controlled single-photon avalanche diode(SPAD)
- Free-space input (fiber coupled version on request)
- Large-area sensor for high collection efficiency
- Delivery with KRISS test certificates on key performances
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Model variations
- QS-SP : Si SPAD with passive quenching
- QS-SP-F : Fiber coupled QS-SP
- QS-IGA : InGaAs SPAD with active quenching (in preparation)
- QS-IGA-F : Fiber coupled QS-IGA (in preparation)
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Compact design with temperature-controlled single-photon avalanche diode(SPAD)
