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激光熔融拉锥型微型光纤耦合器设计 被引量:1

An Algorithm for the Design of Laser-fused Biconical Microcoupler
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摘要 采用聚焦红外激光光束进行熔融加热,针对激光熔融拉锥型光纤耦合器设计了一种熔融区域长度为200μm的微型光纤耦合器.使用光束传输法对拉锥长度和耦合区域的宽度进行了模拟并与实验结果比较,在1320μm的拉锥长度和14μm的耦合宽度处找到了最优化且低损耗的耦合器尺寸配置. Laser-fused fiber taper optical coupler features a significantly smaller package in comparison with conventional flame fused coupler and was ready to fit in modern compact devices. An algorithm was proposed for the design of the mic:rocoupler and a 3 dB microcoupler with a fused length 200 μm was presented. As an effort to search for optimal low loss coupling, optical properties of the micro-coupler were studied for various taper lengths from 1000 to 6000 μm as well as for different diameters in coupling region. Beam Propagation Method (BPM) was used to simulate the operation of microcoupler and the theoretical result was compared with measured property. An optimum design was found at a taper length of about 1320 μm and coupling diameter of 14 μm with an excellent coupling efficiency.
作者 倪玮 吴兴坤
出处 《光子学报》 EI CAS CSCD 北大核心 2006年第11期1659-1662,共4页 Acta Photonica Sinica
关键词 微型光纤耦合器 激光熔融 光束传输法 Fiber microcoupler Laser-fused BPM
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参考文献11

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