single-mode fiber短语⁸⁴³²⁰⁺⁸ 基本例句 单模光纤 The chromatic dispersion, cutoff wavelength, mode field radius and tolerance of a structural design of dispersion- flattened single-mode fiber are calculated and discussed. 推导了相应的电磁场分布函数,计算和讨论了一种色散平坦结构方案的色散特性、截止波长、模斑尺寸及工艺容限。 cnki