CAJ | 학술논문

设计并制作了一套简单有效的光束整形系统,用以改善激光二极管列阵器件(LDA)的光束质量,减小快慢轴光束质量积的差别,实现高亮度光纤耦合输出.首先采用快慢轴准直透镜压缩LDA的发散角,然后采用双面分区镀膜的单片平面镜,通过反射和折射将压缩后的LDA慢轴方向的光束分为7束,并将7束子光束在快轴方向重新排列,实验测得整形装置的效率为95.2%.该整形系统设计简单,效率高,具有很高的应用价值.
설계병제작료일투간단유효적광속정형계통,용이개선격광이겁관렬진기건(LDA)적광속질량,감소쾌만축광속질량적적차별,실현고량도광섬우합수출.수선채용쾌만축준직투경압축LDA적발산각,연후채용쌍면분구도막적단편평면경,통과반사화절사장압축후적LDA만축방향적광속분위7속,병장7속자광속재쾌축방향중신배렬,실험측득정형장치적효솔위95.2%.해정형계통설계간단,효솔고,구유흔고적응용개치.
In order to change LDA output beam into a style which can be coupled with small core radius fiber, a simple but efficient system was designed. A fast and slow axis collimation module was used to collimate the output beam from LDA, after that a plant mirror with both sides coated in special area was used to divide the beam into 7 sub-beam in slow-axis direction and reordered in fast-axis direction. After beam shaping process, the quality of the LDA output beam are improved a lot which can be focused into fiber (400 μm, 0.22) , and the whole beam shaping set efficiency is 95.2%.