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Proceedings Paper

Antimonide-based Geiger-mode avalanche photodiodes for SWIR and MWIR photon counting
Author(s): Erik K. Duerr; Michael J. Manfra; Mohamed A. Diagne; Robert J. Bailey; John J. Zayhowski; Joseph P. Donnelly; Michael K. Connors; Michael J. Grzesik; George W. Turner
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Paper Abstract

At MIT Lincoln Laboratory, avalanche photodiodes (APDs) have been developed for both 2-μm and 3.4-μm detection using the antimonide material system. These bulk, lattice-matched detectors operate in Geiger mode at temperatures up to 160 K. The 2-μm APDs use a separate-absorber-multiplier design with an InGaAsSb absorber and electron-initiated avalanching in the multiplier. These APDs have exhibited normalized avalanche probability (product of avalanche probability and photo-carrier-injection probability) of 0.4 and dark count rates of ~150 kHz at 77 K for a 30-μm-diameter device. A 1000- element imaging array of the 2-μm detectors has been demonstrated, which operate in a 5 kg dewar with an integrated Stirling-cycle cooler. The APD array is interfaced with a CMOS readout circuit, which provides photon time-of-arrival information for each pixel, allowing the focal plane array to be used in a photon-counting laser radar system. The 3.4-μm APDs use an InAsSb absorber and hole-initiated avalanching and have shown dark count rates of ~500 kHz at 77 K but normalized avalanche probability of < 1%. Research is ongoing to determine the cause of the low avalanche probability and improve the device performance.

Paper Details

Date Published: 28 April 2010
PDF: 13 pages
Proc. SPIE 7681, Advanced Photon Counting Techniques IV, 76810Q (28 April 2010); doi: 10.1117/12.851006
Show Author Affiliations
Erik K. Duerr, MIT Lincoln Lab. (United States)
Michael J. Manfra, MIT Lincoln Lab. (United States)
Mohamed A. Diagne, MIT Lincoln Lab. (United States)
Robert J. Bailey, MIT Lincoln Lab. (United States)
John J. Zayhowski, MIT Lincoln Lab. (United States)
Joseph P. Donnelly, MIT Lincoln Lab. (United States)
Michael K. Connors, MIT Lincoln Lab. (United States)
Michael J. Grzesik, MIT Lincoln Lab. (United States)
George W. Turner, MIT Lincoln Lab. (United States)

Published in SPIE Proceedings Vol. 7681:
Advanced Photon Counting Techniques IV
Mark A. Itzler; Joe C. Campbell, Editor(s)

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