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给出了一个计算 980nm泵浦激光二极管与柱形透镜光纤耦合角向容忍度的理论模型 ,并选择圆形的柱透镜光纤进行数值计算 ,得出了在水平和垂直方向上偏转加平移时的相对耦合效率及绕光纤轴向转动的相对耦合效率的数值计算结果并加以分析 ,同时也研究了光纤透镜的形状和激光二极管与光纤的间距对相对耦合效率的影响 .
A theoretical model for calculating the angular tolerance of coupled 980 nm pump laser diode and cylindrical lens fiber is given. The circular cylindrical lens fiber is chosen for numerical calculation, and the deflection and translation in the horizontal and vertical directions are obtained Relative coupling efficiency and the relative coupling efficiency around the axial rotation of the optical fiber are analyzed and analyzed. The shape of the optical fiber lens and the effect of the distance between the laser diode and the optical fiber on the relative coupling efficiency are also studied.