期刊论文

Liu, Y.(lx5252@sohu.com)

中文

光学精密工程

1004-924X

2013

21

5

1137-1143

10.3788/OPE.20132105.1137

吉林省科技厅资助项目（No.10ZDGG001,No.20112106,No.20116011） 长吉图科技项目（No.2011CJT0003）

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与半导体激光Bar条相比,单管半导体激光器具有光束质量好,寿命长等优点,但由于其输出功率小,故在激光加工等领域的应用受到限制。为提高单管半导体激光器的输出功率,提出了基于偏振复用技术对多个单管半导体激光器进行光纤耦合的方法。首先,将16只808nm单管半导体激光器分成两个单元,通过空间合束将每个单元上的激光器发出的光合成一路;然后,利用偏振复用技术将两个单元发出的光束再次合束,通过自行设计的聚焦系统将合束后的光束耦合进光纤实现光纤输出,从而提高了半导体激光器光纤耦合模块的功率水平。实验显示,当工作电流为5.8A时,通过芯径为200μm、数值孔径（NA）为0.2的光纤的输出功率为67...

Single emitter diode laser has better beam quality and longer lifetime as compared with a diode laser bar. However, its application to the material processing is limited by its lower output powers. To improve the output power of the single emitter diode laser, this paper proposed an optical fiber coupling method for single emitter diode lasers based on the polarization multiplexing. Firstly, 16 single emitters were divided into two laser groups, and the laser beam from the two groups was combined into one by spacial multiplexing technology. The...