The QCD-300 Series Provides Low-noise Single-photon Detectors which are optimal for quantum cryptographic applications. The detector responds from 900 ~ 1700nm, with the repetition frequency as high as 100MHz, and the gating window as narrow as 300ps. The detector is compactly designed so as to acquire high stability and reliability. Moreover, the user interface is friendly to operate with.
Low-noise
High gating frequency
Gating frequency is determined by external trigger and can adapt flexibly different frequency
Effective gating width 300ps typically, dark counting and after-pulse are reduced
Adjustable width of detecting gate and adapting different light source and system
Multiple detectors module integration (up to 4 channels), small volume and low cost
Optical strong light alarm function
Touch screen and ethernet control
Single-photon counting
Quantum key distribution (QKD)
Fluorescence analysis
Precision spectroscopy measurements
Weak light detection
Laser radar (LIDAR)
Single-photon source analysis
Optical time domain reflectometer (OTDR)
wavelength | 950~1650nm |
fiber connector type | FC/PC, FC/APC |
gating frequency | 10 ~100MHz |
output pulse width | > 20ns @ 20MHz |
photon detection efficiency | 10%--20% |
maximum count rate |