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Quantum Cryptography Research Platform
QCRP (Quantum Cryptography Research Platform) is a quantum cryptography research platform dedicated to delivering high-speed signal driving and data processing capabilities.
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The infrared single-photon detection module, as an important technology for detecting weak signals, finds extensive applications across numerous fields in physics, astronomy, chemistry, biology, medicine, and other disciplines.
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1.25 GHz Infrared Single-Photon Detector
The WT-SPD320 infrared single-photon detector operates at a frequency as high as 1.25 GHz and uses an InGaAs/InP single-photon avalanche diode (SPAD) as its photosensitive element. It features an integrated multi-stage cooler and employs a sinusoidal gating mode. This detector boasts high integration, high detection efficiency, low dark count rate, and low afterpulse rate. It supports customizable frequency settings and single/dual-channel configurations. Moreover, the detector offers a wide range of user-friendly operational functions, including support for both internal and external clock triggering, synchronized clock output, and adjustable detection efficiency and dead time—all via an intuitive user interface and set of convenient interfaces.
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Infrared single-photon detector
Single-photon detectors are instruments for detecting weak signals at the single-photon level, playing an indispensable role in numerous fields such as quantum optics, biophotonics, and laser ranging. In recent years, single-photon detectors have been widely used in the field of quantum cryptography and have become the core device for photoelectric conversion of quantum signals.
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Infrared free-running single-photon detector
The WT-SPDM400 infrared free-running single-photon detector module employs a negative-feedback InGaAs/InP single-photon avalanche diode (NFAD) as its photosensitive element. The element operates in Geiger mode and features rapid avalanche quenching, effectively suppressing the afterpulse effect. An internal temperature-control circuit ensures that the APD operates at a low temperature, thereby reducing the dark count rate. Additionally, the module allows for adjustable dead times—both short and long—which further help to suppress the afterpulse effect.
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The high-speed picosecond laser is an instrument widely used in scientific research fields such as laser ranging, optical measurement, and fluorescence lifetime analysis. In recent years, with the development of quantum cryptography, the high-speed picosecond laser has emerged as a core device for generating quantum signals, serving as a single-photon source.
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The high-speed clock generator is an instrument widely used in scientific research fields such as fast electronics, precision instrument excitation, semiconductors, and device testing.
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The delay signal counter is an instrument widely used in scientific research fields such as high-speed signal analysis and control, precise delay adjustment, and trigger-based counting. In recent years, with the development of quantum cryptography, the delay signal counter has become an essential tool for experimental studies on quantum signals.
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Multi-channel pulse signal source
The multi-channel pulse signal source is a high-speed, multi-channel pulse signal generation module. This signal source module boasts advantages such as multiple channels, high speed, and low jitter, and supports triggering by both internal and external reference sources. It also features independently adjustable single-channel delays, making it widely applicable in fields such as laser ranging, LiDAR, and quantum key distribution systems.
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A time-to-digital converter is an instrument that can identify the timing of events and convert analog signals into digital signals. It is widely used in scientific research fields such as statistical analysis of post-pulse distributions in lasers, measurement of particle collision times, quantum optics, quantum key distribution, optical detection, and lidar ranging.
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Tel: +86-13514953141
Address: No. 2800, Innovation Avenue, High-Tech Zone, Hefei City, Anhui Province, Innovation Industrial Park Phase II, E2-901/902
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