Laser printed fiber microlens for fiber-diode coupling by direct laser writing.
Laser printed fiber microlens for fiber-diode coupling by direct laser writing.
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DOI：
10.1364/ao.53.008444
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发表时间：
2014-12
期刊：
影响因子：
1.9
通讯作者：
Hongmei Zou;He Huang;Shijie Chen;Qing Li;Jiangming Fu;F. Lin;X. Wu
中科院分区：
文献类型：
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作者：
Hongmei Zou;He Huang;Shijie Chen;Qing Li;Jiangming Fu;F. Lin;X. Wu
演示了光纤端部的可打印微透镜，用于激光二极管与单模光纤 (SMF) 之间的耦合。采用准贝塞尔光束激光直写新技术制备的光纤微透镜具有高耦合效率、长工作距离和足够的对准公差。在 16 μm 工作距离下测得 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 损耗增量的公差分别为 2.5 和 1.2 μm、2.0 和 5.0 度。通过激光直写在光纤端面上打印微透镜的制造允许批量过程以简单且快速的制造周期复制具有高一致性的多个微透镜，而不需要单独的光纤加载和卸载。
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 μm. 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 μm, 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.