The main influencing on the efficiency of transmission system is coupling losses 影响传输系统效率的主要因素是激光与光纤的耦合损失。
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The alignment of laser beam to fiber end face and degradation of beam quality can increase the coupling losses . this paper analyzes their effects to the coupling efficiency 激光与光纤的机械对准误差和光束质量下降导致了耦合损失,本文分析了它们对耦合效率的影响。