Improved performance ladar receiver

Bruno Dion; Nicolas Bélanger; Jocelyn Lauzon; Patrick Lepage; Michel Tremblay

doi:10.1117/12.850181

22 April 2010 Improved performance ladar receiver

Bruno Dion, Nicolas Bélanger, Jocelyn Lauzon, Patrick Lepage, Michel Tremblay

Proceedings Volume 7684, Laser Radar Technology and Applications XV; 768404 (2010) https://doi.org/10.1117/12.850181
Event: SPIE Defense, Security, and Sensing, 2010, Orlando, Florida, United States

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.

Citation Download Citation

Bruno Dion, Nicolas Bélanger, Jocelyn Lauzon, Patrick Lepage, and Michel Tremblay "Improved performance ladar receiver", Proc. SPIE 7684, Laser Radar Technology and Applications XV, 768404 (22 April 2010); https://doi.org/10.1117/12.850181

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