INFRARED SINGLEPHOTON COUNTING SYSTEM（红外单光子计数系统）.pdf

INFRARED SINGLE-PHOTON COUNTING SYSTEM ID210 ADVANCED SYSTEM FOR SINGLE PHOTON DETECTION WITH 100MHz GATED MODE AND FREE-RUNNING MODE The ID210 is a major breakthrough for single photon detection at telecom wavelengths. Its performance in high-speed gating at internal or external frequencies up to 100MHz by far surpasses the performance of its predecessor, the ID201, used by researchers around the globe since 2002. Photons can be detected with probability up to 25% at 1550nm, while maintaining a low dark count rate. A timing resolution lower than 200ps can be achieved. The ID210 provides adjustable delays, adjustable gate duration from 0.5ns to 25ns and adjustable deadtime up to 100us. For applications requiring an asynchronous detection scheme, the ID210 can operate in free-running mode with detection probability up to 10%. Beside performance, a particular effort has been made for providing a practical user interface, universal compatibility with scientific equipment, functionalities including statistics and coincidence counting. Built around an advanced embedded-PC and FPGA, the ID210 allows remote control, connection of external keyboard, data export on USB key and setups saving. KEY FEATURES Ethernet remote control (or USB with adapter) ¡ Up to 100MHz external / internal gating ¡ Stand alone application and Labview Vi ¡ frequency Asynchronous detection mode (free-running) ¡ Free gating mode APPLICATIONS ¡ Quantum optics, quantum cryptography Adjustable photon detection probability ¡ ¡ Adjustable delays, gate width and deadtime ptics characterization ¡