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Proceedings Paper

1-micrometer Geiger-mode detector development
Author(s): J. P. Donnelly; K. A. McIntosh; D. C. Oakley; A. Napoleone; S. H. Groves; S. Vernon; L. J. Mahoney; K. Molvar; J. Mahan; J. C. Aversa; E. K. Duerr; Z. L. Liau; B. F. Aull; D. C. Shaver
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Paper Abstract

Geiger-mode avalanche photodiodes (APDs) can convert the arrival of a single photon into a digital logic pulse. Arrays of APDs can be directly interfaced to arrays of per-pixel digital electronics fabricated in silicon CMOS, providing the capability to time the arrival of photons in each pixel. These arrays are of interest for "flash" LADAR systems, where multiple target pixels are simultaneously illuminated by the laser during a single laser pulse, and the imaging array is used to measure range to each of the illuminated pixels. Since many laser radar systems use Nd:YAG lasers operating at 1.06 um, we have extended our earlier work with silicon-based APDs by developing arrays of InGaAsP/InP APDs, which are efficient detectors for near-IR radiation. 32x32 pixel arrays, with 100-um pixel pitches, are currently being successfully used in demonstration systems.

Paper Details

Date Published: 19 May 2005
PDF: 7 pages
Proc. SPIE 5791, Laser Radar Technology and Applications X, (19 May 2005); doi: 10.1117/12.609691
Show Author Affiliations
J. P. Donnelly, MIT Lincoln Lab. (United States)
K. A. McIntosh, MIT Lincoln Lab. (United States)
D. C. Oakley, MIT Lincoln Lab. (United States)
A. Napoleone, MIT Lincoln Lab. (United States)
S. H. Groves, MIT Lincoln Lab. (United States)
S. Vernon, MIT Lincoln Lab. (United States)
L. J. Mahoney, MIT Lincoln Lab. (United States)
K. Molvar, MIT Lincoln Lab. (United States)
J. Mahan, MIT Lincoln Lab. (United States)
J. C. Aversa, MIT Lincoln Lab. (United States)
E. K. Duerr, MIT Lincoln Lab. (United States)
Z. L. Liau, MIT Lincoln Lab. (United States)
B. F. Aull, MIT Lincoln Lab. (United States)
D. C. Shaver, MIT Lincoln Lab. (United States)

Published in SPIE Proceedings Vol. 5791:
Laser Radar Technology and Applications X
Gary W. Kamerman, Editor(s)

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