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本文研究了锥形光学纤维孔径角的变化,推导了它的数值孔径表达式,并给出了实验测定的数据。文章指出,现有国内外书刊上所列的锥形光学纤维数值孔径公式是不合适的,应予以修正。
In this paper, the change of aperture angle of tapered optical fiber is studied, and its numerical aperture expression is deduced. The experimental data are also given. The article points out that the formulas of the numerical aperture of tapered optical fibers listed in the books and periodicals at home and abroad are not suitable and should be amended.