光子学报, 2011, 40 (11): 1718, 网络出版: 2011-12-12
基于像散与理想光源成像原理的高亮度半导体激光器光纤耦合设计方法
Design of Highbrightness Fibercoupled Diode Laser System Based on Astigmatism and Ideal Imaging Theories
摘要
运用像散原理和理想光源成像原理,讨论了半导体激光器消像散设计.提出了一种基于消像散的高亮度半导体激光器光纤耦合系统的设计方法.以波长为808 nm,输出功率为10 W的半导体激光器的光纤耦合为例,给出了详细的计算方法和设计步骤.结果表明:采用该方法将半导体激光器光束耦合入数值孔径为0.22,芯径为50 μm的光纤中,耦合后输出功率为9.712 W,耦合效率为97.12%,功率密度为1.1224×106 W/cm2.该方法不仅原理简单,而且设计的耦合系统耦合效率高、体积小,具有较强的实用价值.
Abstract
A highbrightness fibercoupled diode laser system is designed, based on the principle of astigmatism and ideal light source imaging theory. As an example, details of the calculation methods and design steps of the fiber coupled laser diode are given whose wavelength is 808 nm and output power is 10 W. Semiconductor laser beam can be coupled into the 50 μm core diameter optical fiber with a numerical aperture of 0.22. It is found that this fibercoupled system has an output power of 9.712 W, a coupling efficiency of 97.12% and a power density of 1.1224×106 W/cm2. The proposed method is simple in principle, and the designed fibercoupled system has high coupling efficiency, small size and strong practical value.
欧翔, 熊玲玲, 张普, 丁晓尘, 贾书海, 刘兴胜. 基于像散与理想光源成像原理的高亮度半导体激光器光纤耦合设计方法[J]. 光子学报, 2011, 40(11): 1718. OU Xiang, XIONG Lingling, ZHANG Pu, DING Xiaochen, JIA Shuhai, LIU Xingsheng. Design of Highbrightness Fibercoupled Diode Laser System Based on Astigmatism and Ideal Imaging Theories[J]. ACTA PHOTONICA SINICA, 2011, 40(11): 1718.