摘要
用一根柱透镜对大功率半导体激光器线列阵输出光束的快轴方向进行准直 ,准直后的光束耦合到光纤列阵中 .大功率半导体激光二极管线列阵的输出功率为 4 0 W,线列阵有 19个发光单元 ,每个发光单元的发光区面积为10 0μm× 1μm .大功率激光二极管线列阵耦合后出纤功率为 30 W,耦合效率为 75 % ,光纤的数值孔径为 0 .
A piece of cylindrical microlens is used to collimate the output radiation of a laser diode bar in the fast axis direction.The emissions of the laser diode bar are coupled into multimode fiber array.A laser diode bar has 19 stripes,which consist of a broad area emitting aperture commonly 1μm by 100μm.The output power of laser diode bar is 40W.Total coupling efficiency and fiber output power are 75% and 30W,respectively.The numerical aperture of fiber is 0 11.
