CAJ | 학술논문

研究了一种适用于大功率激光应用的双包层光纤准直器。考虑在制作准直器时，双包层光纤尾纤和C-lens透镜端面8°倾斜角度的影响，从高斯光束通过复杂光学系统的一般模型出发，利用矩阵光学的理论，在光线传输的子午面和弧矢面上分别进行建模计算，推导光线的传输变换矩阵。结合实际应用中光纤及C-lens透镜的相关参数，仿真分析了尾纤与C-lens透镜间距及C-lens透镜参数对准直器工作距离和出射光束腰直径的影响。研究结果对进行大功率准直器的设计具有指导意义。
연구료일충괄용우대공솔격광응용적쌍포층광섬준직기。고필재제작준직기시，쌍포층광섬미섬화C-lens투경단면8°경사각도적영향，종고사광속통과복잡광학계통적일반모형출발，이용구진광학적이론，재광선전수적자오면화호시면상분별진행건모계산，추도광선적전수변환구진。결합실제응용중광섬급C-lens투경적상관삼수，방진분석료미섬여C-lens투경간거급C-lens투경삼수대준직기공작거리화출사광속요직경적영향。연구결과대진행대공솔준직기적설계구유지도의의。
A double-clad fiber collimator applied in high-power lasers was proposed. Considering the 8° wedge angle of C-lens and the tail of double-clad fiber in the process of production, at the same time to consider the coupling efficiency with double-clad fiber tail, the transform matrix was modeled and calculated from the general model of Gaussian-beam through a complex optical system, using the theory of matrix optics in meridian plane and sagittal plane respectively. Combined with practical applications in double-clad fiber and C - lens related parameters, the influence of the distance between fiber tail and C-lens and the influence of the parameters of the C-lens on working distance and beam waist diameter of collimator were both stimulated and analyzed. The results may be to direct the design of collimator in high-energy laser system.