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Abstract
In order to improve the coupling efficiency of the array semiconductor laser and the multimode fiber, this paper establishes an ideal coupling model for the general structure of the array semiconductor laser. Combined with experiments and Zemax simulation, the relationship between the size error of the mirror package and the coupling efficiency is studied. The results show that : in the displacement error, the coupling efficiency is most sensitive to the X-axis displacement; in the angle error, the coupling efficiency is more sensitive to the Y-axis rotation angle than the Z-axis rotation angle error; the coupling efficiency curve has obvious peaks and is sensitive to changes, and the tolerance is small, which puts forward higher requirements on the stability of the coupling device.
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Details
1 School of Mechatronic Engineering, Central South University, Changsha, Hunan province, 410006, China; State Key Laboratory of High Performance Complex Manufacturing, Central South University, Changsha, Hunan province, 410006, China