关键词：半导体激光器；单模光纤；锥端微透镜；耦合效率；耦合特性Design for the Coupling between
Abstract
Optical fiber coupling technique of semiconductor laser is key technology, and it is receiving a wide publicity. This paper is studying the theory model of coupling of semiconductor laser and single mode optical fiber, and the characteristic of coupling of semiconductor laser and optical fiber. Firstly, this paper summarize history evolution and present situation of semiconductor laser and different characteristic of coupling of semiconductor laser and optical fiber. Make mention of architectural difference and merits and drawbacks of a variety of schemes. Secondly, analyse the characteristic of semiconductor laser, transfer characteristic of optical fiber, characteristic of coupling of semiconductor laser and optical fiber, and aspects which will affect coupling efficiency. Finally, design a theoretical model for semiconductor laser to fiber coupling and numerical calculation by computer. Discussed the microlens radius of curvature and working distance of the coupling efficiency.
