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We demonstrate a new scheme of aspherical microlens (ASM). By employing a singlestep grinding with fully automatic technique to precisely and quantitatively control the grinding offset less than 0.5 μm and minor radius of curvature within 2.4–3.5 μm, the ASMs exhibited a high-average coupling efficiency of 84.5%. This study demonstrates that the proposed ASMs through a single-step grinding technique...
A new scheme of a double-variable-curvature microlens (DVCM) employing a single-step grinding technique with fully automated fabrication for efficient coupling between high-power 980-nm laser diodes and single-mode fibers is proposed and demonstrated. The grinded fiber endface exhibited a double-variable curvature in the major axis, and was clearly observed for both major and minor axes after slight...
We demonstrate a new scheme of aspherical microlens (ASM) employing a single-grinding technique for efficient coupling between high-power laser diodes and single mode fibers. The ASM exhibited high coupling efficiency of 88% and high average coupling efficiency of 84 %.
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