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Updated: Jan 30, 2026
09:23
Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
Published on: May 30, 2014
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A high dynamic range optical detector for measuring single photons and bright light
Optics Express
|January 16, 2019
Summary
We developed a massively-multiplexed single-photon detector with an unprecedented 123 dB dynamic range. This advanced optical detector enables precise measurements from single photons to millions, crucial for quantum optics experiments.
Area of Science:
- Quantum Optics
- Photonics
- Detector Technology
Background:
- Light detection is crucial for optical experiments.
- Single-photon detectors typically saturate with multiple photons.
- A wide dynamic range is needed for precise light measurements.
Purpose of the Study:
- To report a massively-multiplexed single-photon detector.
- To achieve an extended dynamic range for photon detection.
- To enable calibration and characterization of quantum states.
Main Methods:
- Exploiting the saturation regime of single-click detectors.
- Massive multiplexing of detector elements.
- Direct calibration against a power meter.
Main Results:
- Achieved a dynamic range of 123 dB.
- Enabled measurement from 10-7 to 2.5 × 105 photons per pulse.
- Facilitated direct calibration of single-photon detectors.
Conclusions:
- The developed detector offers a breakthrough in dynamic range for photon counting.
- Enables accurate characterization of nonclassical quantum states.
- Opens new possibilities for optical metrology and quantum information science.
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