Your Search Results

Use this resource - and many more! - in your textbook!

AcademicPub holds over eight million pieces of educational content for you to mix-and-match your way.

Experience the freedom of customizing your course pack with AcademicPub!
Not an educator but still interested in using this content? No problem! Visit our provider's page to contact the publisher and get permission directly.

Geiger-mode avalanche photodiodes for laser communications and laser radar

By: Groves, S.H.; Hopman, P.I.; Frechette, J.P.; Funk, J.E.; Duerr, E.K.; Donnelly, J.P.; Dauler, E.A.; Aversa, J.C.; Aull, B.F.; Vineis, C.J.; Verghese, S.; Smith, G.M.; Shaver, D.C.; Ouellette, E.J.; Oakley, D.C.; Napoleone, A.; McIntosh, K.A.; Mahoney, L.J.; Mahan, J.M.; Liau, Z.-L.; Jensen, K.E.;

2006 / IEEE / 1-4244-0090-2


This item was taken from the IEEE Conference ' Geiger-mode avalanche photodiodes for laser communications and laser radar ' Arrays of photon-counting avalanche photodiodes (APDs) enable laser-communications and laser-radar receivers with unprecedented sensitivity at 1.06-/spl mu/m wavelength. Near room temperature, the best detectors have: 50% photon detection efficiency, 30-kHz dark count rate, and a 1-/spl mu/s reset time to avoid after-pulsing. Arrays with 64 elements were fabricated in the InGaAsP/InP materials system and were bump-bonded to a custom CMOS integrated circuit (IC) with a novel nonblocking architecture to continuously report both time-of-arrival for incoming photons as well as their spatial location on the array. Larger arrays with 1024 elements were mated to custom read-out ICs that report time and location data at lower duty cycles (typically 1-5%) and are appropriate for pulsed laser-radar systems.