The id400 from id Quantique (Geneva, Switzerland) is a photon counting module optimized for 1064nm wavelength. It includes an In-GaAsP/InP avalanche photodiode optimised for Geiger mode and a fast quenching electronic circuit. It comes with a control unit intended for APD temperature control and regulation, power supply, gate generation and dead time setting. The photon detection probability can be adjusted at 7.5%, 15% or 30%. The id400 can work in free running or gated mode.
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