【作者】 张羽； 刘志海； 杨军； 苑立波；

【Author】 Yu Zhang,Zhihai Liu,Jun Yang,and Libo Yuan,Photonics Research Center,College of Science,Harbin Engineering University,Harbin 150001,China

【机构】 哈尔滨工程大学理学院光子科学与技术研究中心；

【摘要】 通过将单芯单模光纤与多芯光纤纤芯对准熔接后,再在多芯光纤任意位置进行热熔融拉锥,实现多芯光纤光功率的高效耦合注入和光功率在各个纤芯中分布比例的控制,解决了由于多芯光纤结构特殊引起的光源光功率难于直接注入的问题。基于光纤耦合模式理论建立多芯光纤各纤芯之间的耦合模方程,得到各个纤芯中光功率变化与耦合长度之间的变化曲线,并与实际耦合实验结果对比,验证此方法可行。研究结果可为多芯光纤光学器件的发展提供潜在的应用价值。更多还原

【Abstract】 We propose an improved method to control the incident light power distribution ratio in each core of a multi-core optical fiber.This method is realized by tapering the multi-core fiber to be a bi-tapered shape after fusing the multi-core fiber with a normal single mode fiber on the condition of core alignment.Base on a coupling theoretical model and analysis,the controlling method is introduced,and the results are demonstrated by both theory and experiment.Finally,this incident power distribution controlling method provides a helpful and potential application prospect for multi-core optical fibers devices and sensors.更多还原