This paper analyses the causes of coupling loss produced by self-focusing lens used in passive fiber components, solutions are proposed to such causes.
本文分析了光纤无源器件中使用的自聚焦透镜产生耦合损耗的原因，并提出了解决办法。
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The manufacturing process of fiber cord coupled with self-focusing lens by using optical alignment is presented, its application is described as well.