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2 May 2009 Off-axis laser warning sensor
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We report of a ship borne off-axis laser warning sensor designed and built at Onera. Classical laser warning sensors detect a laser beam when it is illuminating the warning sensor, meaning that the sensor is located along the laser propagation axis. Hence, large ships are difficult to protect since they require multiple laser warning sensors installed at various locations on the ship hull. On the contrary, the off-axis sensor collects the Mie scattered flux out of the beam propagation axis and looks at the beam sideways. Therefore it can be designed so as to protect the whole ship with only one sensor covering 360°. This paper describes the system and the instrument performance model in maritime environment. Field trials off the Mediterranean coast were conducted by Thales Optronique in fall 2007 in order to validate the concept in operational conditions.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
D. Goular, J. P. Cariou, D. Fleury, C. Planchat, R. Gouyon, C. Besson, A. Bêche, and V. Megaides "Off-axis laser warning sensor", Proc. SPIE 7323, Laser Radar Technology and Applications XIV, 732314 (2 May 2009);

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