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<p>This thesis investigates the effect of the ocean water attenuation on a laser beam fired upward inside the ocean.  The laser beam spreading due to scattering is approximated.  The method used is a computer Monte Carlo simulation.  Angular spreading of light caused by refraction at the sea surface is also studied and compared with the ocean results.  The method is to simulate geometrical light rays passing through a randomly realized ocean surface wave model and derive statistics of the angular refraction.  The results of this work can be used for detection of objects in the water and laser communication to submerged objects from an airborne or space platform.
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<br>Subjects: Lasers; Refraction; Ocean waves</div>
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Xiradakis, Pavlos</div>
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