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Proceedings Paper

32 x 32 Geiger-mode ladar camera
Author(s): Ping Yuan; Rengarajan Sudharsanan; Xiaogang Bai; Joseph Boisvert; Paul McDonald; Eduardo Labios; Michael S. Salisbury; Gary M. Stuart; Harrison Danny; Angel A. Portillo; Alric B. Roybal; Stephen Van Duyne; Greg Pauls; Steve Gaalema
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Paper Abstract

For the wide applications of LAser Detection and Ranging (LADAR) imaging with large format Geiger-mode (GM) avalanche photodiode (APD) arrays, it is critical and challenging to develop a LADAR camera suitable to volume production with enough component tolerance and stable performance. Recently Spectrolab and Black Forest Engineering developed a new 32x32 Read-Out Integrated Circuit (ROIC) for LADAR applications. With a specially designed high voltage input protection circuit, the ROIC can work properly even with more than 1 % of pixels shorted in the APD array; this feature will greatly improve the camera long-term stability and manufacturing throughput. The Non-uniform Bias circuit provides bias voltage tunability over a 2.5 V range individually for each pixel and greatly reduces the impact of the non-uniformity of an APD array. A SMIA high speed serial digital interface streamlines data download and supports frame rates up to 30 kHz. The ROIC can operate with a 0.5 ns time resolution without vernier bits; 14 bits of dynamic range provides 8 μs of range gate width. At the meeting we will demonstrate more performance of this newly developed 32x32 Geiger-mode LADAR camera.

Paper Details

Date Published: 29 April 2010
PDF: 12 pages
Proc. SPIE 7684, Laser Radar Technology and Applications XV, 76840C (29 April 2010); doi: 10.1117/12.851525
Show Author Affiliations
Ping Yuan, Spectrolab, Inc. (United States)
Rengarajan Sudharsanan, Spectrolab, Inc. (United States)
Xiaogang Bai, Spectrolab, Inc. (United States)
Joseph Boisvert, Spectrolab, Inc. (United States)
Paul McDonald, Spectrolab, Inc. (United States)
Eduardo Labios, Spectrolab, Inc. (United States)
Michael S. Salisbury, Boeing-SVS, Inc. (United States)
Gary M. Stuart, Boeing-SVS, Inc. (United States)
Harrison Danny, Boeing-SVS, Inc. (United States)
Angel A. Portillo, Boeing-SVS, Inc. (United States)
Alric B. Roybal, Boeing-SVS, Inc. (United States)
Stephen Van Duyne, Black Forest Engineering, LLC (United States)
Greg Pauls, Black Forest Engineering, LLC (United States)
Steve Gaalema, Black Forest Engineering, LLC (United States)

Published in SPIE Proceedings Vol. 7684:
Laser Radar Technology and Applications XV
Monte D. Turner; Gary W. Kamerman, Editor(s)

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