Large format geiger-mode avalanche photodiode LADAR camera

Ping Yuan; Rengarajan Sudharsanan; Xiaogang Bai; Eduardo Labios; Bryan Morris; John P. Nicholson; Gary M. Stuart; Harrison Danny

doi:10.1117/12.2016446

23 May 2013 Large format geiger-mode avalanche photodiode LADAR camera

Ping Yuan, Rengarajan Sudharsanan, Xiaogang Bai, Eduardo Labios, Bryan Morris, John P. Nicholson, Gary M. Stuart, Harrison Danny

Author Affiliations +

Proceedings Volume 8731, Laser Radar Technology and Applications XVIII; 87310X (2013) https://doi.org/10.1117/12.2016446
Event: SPIE Defense, Security, and Sensing, 2013, Baltimore, Maryland, United States

Abstract

Recently Spectrolab has successfully demonstrated a compact 32x32 Laser Detection and Range (LADAR) camera with single photo-level sensitivity with small size, weight, and power (SWAP) budget for threedimensional (3D) topographic imaging at 1064 nm on various platforms. With 20-kHz frame rate and 500- ps timing uncertainty, this LADAR system provides coverage down to inch-level fidelity and allows for effective wide-area terrain mapping. At a 10 mph forward speed and 1000 feet above ground level (AGL), it covers 0.5 square-mile per hour with a resolution of 25 in2/pixel after data averaging. In order to increase the forward speed to fit for more platforms and survey a large area more effectively, Spectrolab is developing 32x128 Geiger-mode LADAR camera with 43 frame rate. With the increase in both frame rate and array size, the data collection rate is improved by 10 times. With a programmable bin size from 0.3 ps to 0.5 ns and 14-bit timing dynamic range, LADAR developers will have more freedom in system integration for various applications. Most of the special features of Spectrolab 32x32 LADAR camera, such as non-uniform bias correction, variable range gate width, windowing for smaller arrays, and short pixel protection, are implemented in this camera.

Citation Download Citation

Ping Yuan, Rengarajan Sudharsanan, Xiaogang Bai, Eduardo Labios, Bryan Morris, John P. Nicholson, Gary M. Stuart, and Harrison Danny "Large format geiger-mode avalanche photodiode LADAR camera", Proc. SPIE 8731, Laser Radar Technology and Applications XVIII, 87310X (23 May 2013); https://doi.org/10.1117/12.2016446

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