29 April 2010 32 × 32 Geiger-mode ladar camera
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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.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ping Yuan, Ping Yuan, Rengarajan Sudharsanan, Rengarajan Sudharsanan, Xiaogang Bai, Xiaogang Bai, Joseph Boisvert, Joseph Boisvert, Paul McDonald, Paul McDonald, Eduardo Labios, Eduardo Labios, Michael S. Salisbury, Michael S. Salisbury, Gary M. Stuart, Gary M. Stuart, Harrison Danny, Harrison Danny, Angel A. Portillo, Angel A. Portillo, Alric B. Roybal, Alric B. Roybal, Stephen Van Duyne, Stephen Van Duyne, Greg Pauls, Greg Pauls, Steve Gaalema, Steve Gaalema, "32 × 32 Geiger-mode ladar camera", Proc. SPIE 7684, Laser Radar Technology and Applications XV, 76840C (29 April 2010); doi: 10.1117/12.851525; https://doi.org/10.1117/12.851525
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