High speed active gated image intensifier tubes can be used for vision through sea water and for target detection. The quality, range and field of view of the imaging system and the efficiency of the target detection is determined by the radiant power of the laser, water attenuation and image intensifier system parameters. This paper discusses the relationships between the imaging systems parameters and presents qualitative illustrations for systems applications.
Illes P Csorba,
"Undersea Imaging And Target Detection With Gated Image Intensifier Tubes", Proc. SPIE 1072, Image Intensification, (14 April 1989); doi: 10.1117/12.952536; https://doi.org/10.1117/12.952536