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在高斯场分布近似的前提下，从模场半宽匹配的角度描述了半导体激光器（ＳＬＤ） 与单模光纤（ＳＭＦ） 之间的光耦合理论。对不同的ＳＬＤＳＭＦ 间光耦合的方式作了分析，并从耦合效率与成本双重角度给出了适合于实际工程应用的几种耦合方式的优选率
The optical coupling theory between semiconductor laser (SLD) and single-mode fiber (SMF) is described from the half-width matching of mode field under the assumption of Gaussian field distribution. The different modes of SLD-SMF optical coupling are analyzed, and the optimization rate of several coupling modes suitable for practical engineering is given from the dual perspective of coupling efficiency and cost