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1·The use of the lensed fiber can improve the coupling efficiency and alignment tolerance greatly.

通过这项技术，可以有效提高光纤输出耦合效率和容忍度。

2·The mostly used techniques to improve the coupling efficiency and alignment tolerance include using micro single lens, micro lens group and lensed fiber.

通常采用单个透镜，透镜组或者光纤微透镜的方式来改善半导体激光器的出射光束质量，提高耦合效率和容忍度。

3·The enhancement factor strongly depends on the illumination spot size, taper Angle of the probe, and the metal film thickness. The tolerance of the alignment Angle is investigated.

研究发现电场增强跟入射光斑大小，探针的锥形角，以及金属膜厚度密切相关。