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Geiger-mode avalanche photodiodes for photon-counting communications

By: Dauler, E.A.; Cohen, D.M.; Verghese, S.; Smith, G.M.; Oakley, D.C.; McIntosh, K.A.; Donnelly, J.P.; Mahoney, L.J.; Liau, Z.-L.; Jensen, K.E.; Hopman, P.I.; Groves, S.H.; Duerr, E.K.;

2005 / IEEE / 0-7803-8981-6

Description

This item was taken from the IEEE Conference ' Geiger-mode avalanche photodiodes for photon-counting communications ' Arrays of photon-counting avalanche photodiodes enable laser-communications receivers with unprecedented sensitivity at 1.06-/spl mu/m wavelength. Arrays with 64 elements were fabricated in the InGaAsP/InP materials system and were bump-bonded to a custom CMOS integrated circuit. The integrated circuit uses a novel nonblocking architecture to continuously report both time-of-arrival for incoming photons as well as their spatial location on the array. Near room temperature, the best detectors have: 45% photon detection efficiency, 65-kHz dark count rate, and a 1.6-/spl mu/s reset time to avoid after-pulsing.