A novel technique that a broad-area diode laser is directly coupled to a cylindrical lensed multimode fiber is presented to improve the fiber coupling efficiency and alignment tolerance.

• 为了提高半导体激光器与光纤耦合的耦合效率和失配容忍度,提出了利用带柱状楔形微透镜的多模光纤与大功率单片式宽发射域半导体激光器进行耦合的新技术。