Research Of The Application Of Relay Mirror In 100kW Solid-State Laser Transmission

The laser relay mirror technique is an important system combat concept that has unique application in military field, which has been under extensive research recently. Fundamental research and numerical calculations of the application of the 10 -altitude relay mirror in 100 solid-state laser transmission is performed, the advantages of the relay mirror system are analyzed, the results present good reference for the designing and the application of the relay mirror system.The concept and composing of the relay mirror system as well as the development profiles are reviewed, the process and the principle of the relay mirror system is analyzed with emphasis. For the uplink,all the influenced factors, the approximate conditions, the best upward transmission mode and the theoretical computational method of the receiving field are analyzed. For the downlink, the influenced of beam quality, the non-uniform distribution of the source energy, and the atmosphere are analyzed in detail. The computational method is also analyzed extensively.The vertical upward transmission and the slanting transmission laser relay mirror system are mathematically modeled. The effects of the 100 ground-based laser system and the 10 -altitude relay mirror system on target under different atmospheric conditions are calculated separately with the destruction threshold selected from the handy reference. The calculation results reveals that for the target at 1km-altitude with flying speed of 500 , the maximum coverage range of the ground-based laser system is 1.4km and the maximum coverage range of the vertical upward transmission relay mirror system is 11.8 under the Hufnagel-Valley 5/7 atmospheric turbulence model and the marine environment condition. The maximum coverage range of the ground-based laser system becomes 1.9 , and the maximum coverage range of the vertical upward transmission relay mirror system becomes 13.1 under the actual atmospheric condition of one specified area. The maximum coverage range of the ground-based laser system becomes 1.8 ,and the coverage range of the slanting upward transmission relay mirror system becomes 4.2-15.8 under the actual atmospheric condition of one specified area for the target at 100m-altitude with flying speed of 500 . The results show that the relay mirror has enormously expanded the coverage range of the laser system and strengthened the attacking ability of the ground-based laser.According to the calculation result and the characteristics of the relay mirror system, the advantages as well as the critical technique of the relay mirror system are analyzed systematically. The limitation to the application of the 10 -altitude relay mirror in 100 solid-state laser transmission induced by the tracking and pointing precision is analyzed. Accurate tracking and pointing technique is required for fielding the 10km -altitude relay mirror in 100 kWsolid- state laser transmission system into practical use.The thesis is summed up with the conclusion that the application of the 10 -altitude relay mirror in 100 solid- state laser transmission has various advantages, which is an effective application field of the 100 solid-state laser. The relay mirror system has the unique application background for the high-speed target. It is also to be noted that related techniques should be synchronized with the development of the relay mirror system.