07 Nov 2013 If conventional detectors are unable to distinguish between signal and noise, then single-photon detectors are used. These detectors have a high detection efficiency at a low dark count rate similar to LASER COMPONENTS‘ silicon-based single photon ava¬lanche diodes (SPADs). When equipped with electronics, they become easy-to-use photon counting modules.
Especially made for wavelengths in the near infrared, LASER COMPONENTS intro¬duces the single photon counting module COUNT® NIR. It has a notable detection efficiency of 60% at 810nm and achieves a maximum detection efficien¬cy of almost 80% at 700nm. Dark count rates of less than 50 photons per second are common. To operate this module, TTL pulses can be used: for this purpose, the COUNT® is equipped with a gating input. The power is connected using a 12V power supply.
The COUNT® NIR development has been pushed because of experiments in funda¬mental research where light quanta play a crucial role. Many experiments are conduc¬ted in the wavelength range around 810nm, for example, in quantum optics and quantum information.
For more information visit our website at
http://www.lasercomponents.com/uk/product/count-nir/
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