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本文根据包层型光纤维的特点并利用了一些近似条件导出了计算包层型光纤维连接损耗的近似式。式子把包层型尤纤维的固有参数(如光纤芯径、数值孔径、芯折射率)和连接时的位置参数(如轴向间隙、径向偏差和轴向夹角)与光纤维的连接损耗结合到一起。它对计算包层型尤纤维的连接损耗和分析有关问题都是有用的。本文还就包层型尤纤维在连接方面的问题及对光纤维的要求也作了简单的分析讨论。并对理论计算与实测结果进行了比较。
In this paper, based on the characteristics of cladding optical fiber and using some approximate conditions, an approximate formula for calculating cladding optical fiber connection loss is derived. The equations relate the intrinsic parameters (such as fiber core diameter, numerical aperture, core refractive index) of cladding fiber types to the connection of optical fiber with the positional parameters (such as axial clearance, radial deviation and axial angle) Loss together. It is useful for calculating the connection loss and analyzing related problems of the coated fiber. The paper also made a simple analysis and discussion on the connection type of the fiber in the sheath and the requirements on the optical fiber. The theoretical calculation and measured results were compared.