Design and fabrication of a biconvex aspherical microlens for maximizing fiber coupling efficiency with an ultraviolet laser diode

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• 作者：Muttahid-Ull HoqueAuthor Vitae ; Md Nazmul HasanAuthor Vitae ; Yung-Chun Lee ; ^{yunglee@mail.ncku.edu.tw}Author Vitae
• 关键词：Laser diode ; Biconvex aspherical microlens ; Excimer laser micromachining ; Fiber coupling efficiency
• 刊名：Sensors and Actuators A: Physical
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：254
• 期：Complete
• 页码：36-42
• 全文大小：2497 K
• 卷排序：254

文摘

A single bi-convex microlens is proposed to maximizing fiber coupling efficiency. The profiles of microlens also focus the Laser diode beam into a small spot size. Excimer laser dragging method used to fabricate accurate profiles in the microlens. Discrepancy between machining and experiment below 1 μm. A small spot size is obtained experimentally and maximizing fiber coupling efficiency successfully.