摘要
光纤耦合半导体激光器广泛的应用在国防、商业、工业等领域,对其光学准直是一项重要的工作。文中详细的介绍非球面透镜设计方法,设计了数值孔径NA=O.37,光纤芯径φ=600μm的大光束光纤耦合半导体激光非球面准直透镜,准直透镜的焦距f=50mm。从像质评定可以看出,非球面准直镜几乎接近衍射极限,整个系统的波像差小于0.3λ。实验结果证明,采用非球面准直系统,能提高光能的利用率,并获得高效准直光束。
It is an important work for collimating fiber-coupled diode laser beam in national defence, industry and other fields of application. Designing method for collimating fiber.coupled laser diode is presented in the paper, aspheric collimator designed has a focal length of 50mm for Number Aperture NA=0. 37 and fiber core diameter φ= 600μm of fiber coupled laser diode. Evaluations have shown that the image quality is close to the diffraction limit, and wavefront aberration of the collimating optical system is less than 0.3λ. Experiment results carried out that the collimating optical system, of which enhance laser efficiency, is obtained, and proved design method accurate.
出处
《激光杂志》
CAS
CSCD
北大核心
2006年第1期66-66,68,共2页
Laser Journal
