Optimal design of core parameters of high-power laser systems based on weight analysis
In this paper,we've made a deep research on the far-field propagation of high-power lasers,and a general far-field performance model is derived,which is concerned with multiple factors,including atmosphere turbulence,diffraction effects and etc.Meanwhile for better field application,further amend-ment suggestions are proposed.Based on this model,we presented the optimal design method and princi-ples by defining index weight factors used as evaluation parameters.The simulation results indicated that both of the beam quality and output power were the key elements that influence the far-field laser irradi-ance,between them beam quality has a higher weight,about 30%-79%,and needed to be decided first,in fact the ideal case was that beam quality was infinitely close the the diffraction limit.The laser emission aperture weights the lowest,about 4%-24%,and does a little favour to the system performance,so it needs a trade-off design with other functions such as tracking ability.Finally,analysis of the example veri-fy the scientificity of the index weight factors,and verify the validity of the optimal design principles,which have great reference value for engineering design of high power laser systems.
万方数据
维普
