基于ABCD定律的LD-SMF高斯光束模式匹配方法的研究  

Research on Mode Matching of Gaussian Beams Between LD and SMF B ased on Matrix Optical ABCD Law

作　　者：赵勇[1] 李鹏生[1] 浦昭邦[1] 

机构地区：[1]哈尔滨工业大学自动化测试与控制系,哈尔滨150001

出　　处：《光电子．激光》2000年第3期274-276,共3页Journal of Optoelectronics·Laser

基　　金：国防基金资助项目!( 98J18.3 .3 HT0 12 9)

摘　　要：在高斯场分布近似的前提下 ,根据矩阵光学理论和高斯光束转换的 ABCD定律 ,从模式匹配的角度描述了半导体激光器 (L D)与单模光纤 (SMF)之间的光耦合理论 ,提出了实现 L D椭圆高斯光束与SMF圆高斯光束间模式匹配的设计方法。这不仅对提高 L D- SMF的耦合效率有理论指导意义 ,而且也为其它场合下解决高斯光束的准直扩束及实现椭圆—圆高斯光转换等问题提供了有效依据。Using the Gaussian beam approximatio n and from the viewpoint of mode matching,the optical coupling theory between lase r diode (LD) and single-mode fibers (SMF) is described in this paper,which is b ased on the matrix optical theory and the ABCD[WT5”,6BZ] law.A n optimum design for the mode matching for between LDs elliptical Gaussian bea m and SMFs circular Gaussian beam is presented.It is not only valuable for imp roving the coupling efficiency bet ween LD and SMF,but an effective approach to implement the collimation and trans ition from elliptical Gaussian beam into circular Gaussian beam.

关 键 词：高斯光束 模式匹配 ABCD定律 单模光纤 半导体激 

分 类 号：TN248.4[电子电信—物理电子学] TN253