Coupling light from a laser diode into a multimode fiber |
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| Authors: | Zeng Xiaodong An Yuying |
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| Affiliation: | School of Technical Physics, Xidian University, Xian 710071, China. xdzeng@xidian.edu.cn |
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| Abstract: | A parabolalike fiber end to couple the light from a high-power laser diode into a multimode fiber is presented. The formula for the coupling efficiency of such a system is given, and numerical evaluation shows that the theoretical coupling efficiency can be as high as 92% without an antireflection coating on the fiber's end face. This beam-shaping system can be fabricated easily and has a large alignment tolerance. |
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