Ultrashort dead time of photon-counting InGaAs avalanche photodiodes
arXiv:0905.2931 · doi:10.1063/1.3151864
Abstract
We report a 1.036 GHz gated Geiger mode InGaAs avalanche photodiode with a detection dead time of just 1.93 ns. This is demonstrated by full recovery of the detection efficiency two gate cycles after a detection event, as well as a measured maximum detection rate of 497 MHz. As an application, we measure the second order correlation function of the emission from a diode laser with a single detector which works reliably at high speed owing to the extremely short dead time of the detector. The device is ideal for high bit rate fiber wavelength quantum key distribution and photonic quantum computing.
arXiv comment10 pages, 4 figures. Updated to published version
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