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Proceedings Article

1-μm Geiger-mode detector development

[+] Author Affiliations
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

MIT Lincoln Lab. (USA)

Proc. SPIE 5791, Laser Radar Technology and Applications X, 281 (August 05, 2005); doi:10.1117/12.609691
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From Conference Volume 5791

  • Laser Radar Technology and Applications X
  • Gary W. Kamerman
  • Orlando, Florida, USA | March 28, 2005

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.

© (2005) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

J. P. Donnelly ; K. A. McIntosh ; D. C. Oakley ; A. Napoleone ; S. H. Groves, et al.
"1-μm Geiger-mode detector development", Proc. SPIE 5791, Laser Radar Technology and Applications X, 281 (August 05, 2005); doi:10.1117/12.609691; http://dx.doi.org/10.1117/12.609691


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