Abstract: The principle and experiment system of single-photon detector quantum efficiency measurement by correlated photons are introduced, and a set of measurement and control software for the system is established and developed. Based on LabVIEW standard state machine, the software is consist of “laser configuration”, “coincidence measurement” and “generate report”, etc. branches, which was wrote with VISA, ActiveX and report generation toolkit. State machine switches its branches to call each function program. The actual applications show that, the software, with a friendly interface and a high dependability, is able to use for singlephoton detector quantum efficiency measurement.

Key words: ⁺Single-photon detector, Quantum efficiency, LabVIEW, Measurement and control software