Beamqualityevaluationofcoherentlycombinedlaserbeams
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摘要: 针对光束合成的目的和合成光束的特征,对现有的光束质量衡量标准进行了分析,说明了这些标准的不足。提出用广义环围功率比作为新的激光合成的光束质量评价标准。对广义环围功率比进行了阐述,并对其在合成效果方面的评价进行了定性分析。应用广义环围功率比作为合成光束质量评价标准,物理概念清楚,评价合理,在工程测量上容易实现。Abstract: In order to better evaluate the beam combination and the character of combined beams, all the existing evaluating standards for beam quality are analyzed, and their disadvantages are also discussed. A new conception named generalized beam quality (GBQ) is advanced to measure the beam quality of combined beams. Compared with other beam quality parameters, GBQ has many advantages on physical concept, feasibility and measurement in the project.
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Key words:
- high power laser /
- coherent combining /
- beam quality /
- evaluation system
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