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首页> 外文期刊>Applied optics >Laser printed fiber microlens for fiber-diode coupling by direct laser writing
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Laser printed fiber microlens for fiber-diode coupling by direct laser writing

机译：通过直接激光写入进行光纤-二极管耦合的激光印刷光纤微透镜

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摘要

A printable microlens on fiber end for coupling between a laser diode to a single-mode fiber (SMF) is demonstrated. The fiber microlens fabricated by the novel technique based on laser direct writing using a quasi-Bessel beam has gained high coupling efficiency, long working distance, and sufficient alignment tolerance. A coupling efficiency of 53.5% was measured for SMF coupling at a working distance of 16 mu m. The tolerances for a 1-dB loss increment for translational displacements and angular deviations between the fiber microlens and the laser diode were 2.5 and 1.2 mu m, and 2.0 and 5.0 degrees, respectively. The printable fabrication of a microlens on a fiber endface by laser direct writing allows for a batch process to reproduce a multiple microlens with a high consistency in a simple and fast fabrication cycle, with no need of individual fiber loading and unloading. (C) 2014 Optical Society of America
机译：演示了光纤末端上的可打印微透镜，用于在激光二极管和单模光纤（SMF）之间耦合。通过基于准贝塞尔光束的激光直接写入的新技术制造的光纤微透镜获得了高耦合效率，长工作距离和足够的对准公差。在工作距离为16μm时，SMF耦合的耦合效率为53.5％。光纤微透镜和激光二极管之间的平移位移和角度偏差的1-dB损耗增量容差分别为2.5和1.2μm，以及2.0和5.0度。通过激光直接写入在光纤端面上可印刷的微透镜的制造，允许分批过程以简单，快速的制造周期以高一致性复制多个微透镜，而无需单独加载和卸载光纤。 （C）2014年美国眼镜学会

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