Study on echo power of underwater laser fuze

Aiming at the problem that underwater laser fuze is difficult to select suitable laser transmitting power,echo power of underwater laser fuze is researched.In order to calculate the necessary laser transmitting power of underwater laser fuze applied in certain sea areas,by deriving echo power equation of underwater laser fuze,the attenuation coefficient of various components of seawater on the 532 nm green laser is calculated,and the calculation formula for the required peak power of transmitting pulse laser while the fuze detecting a given distance is obtained.The calculation formula is simulated under conditions of various seawater parameters,the result shows that for underwater laser fuze which is used in comparatively clean sea areas,selecting pulse laser whose peak power is not less than 10 kW can detect target on 10m.Thus,this work can provide a theoretical basis for the selection of laser transmitting power when underwater laser fuze is used in different sea areas.