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聚焦法是一种最新的非破坏性的测量光纤预制棒或光纤折射率剖面的方法。它是由D.Marcuse于1979年提出的。本文用BASIC语言编制了一套该方法的计算程序,所得结果与D.Marcuse的结果很好地相吻合。测量的再现性优于1%。一、聚焦法的基本原理
Focusing is the latest non-destructive method of measuring optical fiber preform or fiber refractive index profiles. It was proposed by D. Marcuse in 1979. In this paper, a set of calculation program of this method is compiled in BASIC language, and the result is in good agreement with the result of D. Marcuse. The reproducibility of the measurement is better than 1%. First, focus on the basic principles of law