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Proceedings Paper

Improved performance ladar receiver
Author(s): Bruno Dion; Nicolas Bélanger; Jocelyn Lauzon; Patrick Lepage; Michel Tremblay
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Paper Abstract

Optical LADARs require high sensitivity near 1 nanowatt while also having fast recovery to overloads as high as 100W. Fast recovery is required in order to detect a secondary target from behind a bright target. In the current work, we have created a new family of LADAR receivers having a higher gain bandwidth product than most commercially available receivers. While maintaining the receiver bandwidth, a 4.8 × increase in responsivity can now be achieved. With cooling of the APD, these new receivers are offering more than a twofold time reduction of the NEP, allowing longer range coverage of the LADAR system. In addition, a new feature is the improvement of the overload recovery to 93ns from an laser pulse of 56mW, allowing close secondary target detection.

Paper Details

Date Published: 22 April 2010
PDF: 8 pages
Proc. SPIE 7684, Laser Radar Technology and Applications XV, 768404 (22 April 2010); doi: 10.1117/12.850181
Show Author Affiliations
Bruno Dion, Esterline-CMC Electronics Inc. (Canada)
Nicolas Bélanger, Esterline-CMC Electronics Inc. (Canada)
Jocelyn Lauzon, Esterline-CMC Electronics Inc. (Canada)
Patrick Lepage, Esterline-CMC Electronics Inc. (Canada)
Michel Tremblay, Esterline-CMC Electronics Inc. (Canada)

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

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