光学学报, 2007, 27 (11): 1935, 网络出版: 2007-11-12   

全光纤型微环谐振器的研制

Study and Fabrication of All-Fiber Microring Resonator
作者单位
北京交通大学光波技术研究所全光网与现代通信网教育部重点实验室, 北京 100044
摘要
环形谐振器因体积小、功能强、结构简洁等优点长期以来一直在光无源、有源器件的设计和制作中发挥着重要的作用。对光纤的弯曲损耗特性进行了深入分析,指出只有采用微细光纤才能降低全光纤法所制作的环形谐振器的尺寸,加宽器件的自由光谱范围(FSR)获得更好的精细度和品质因子。然后,在改进熔融拉锥技术的同时,保持慢变、绝热条件拉制出在80 mm长度范围内具有良好均匀性、半径为5 μm的高质量微细光纤,在此基础上采用自缠绕法研制出半径仅为500 μm,谐振效果明显加强的全光纤型微环谐振器,从而很好地解决了集成型微环谐振器较高的弯曲损耗和连接损耗问题。
Abstract
Ring resonators have been playing a very important role in the design and fabrication of active and passive optical devices due to their small size, multi-function and compactness. Bend loss characteristics of optical fiber are investigated thoroughly, and the results show that all-fiber resonator with smaller ring radius, wider free spectral range (FSR), higher fineness (f) and quality factor (Q) can be achieved only by microfiber. Based on the improved fused taper technique, under the condition of slow change and adiabatic condition, a 5 μm-radius high-quality microfiber with uniform waist length of 80 mm is fabricated. And utilizing self-wrapping coupling method, an all-fiber microring resonator with 500 μm radius is realized, which exhibits good resonant response. This all-fiber device is expected to avoid the large bendloss and connection loss induced by planar waveguide integration.

董小伟, 裴丽, 冯素春, 鲁韶华, 许鸥. 全光纤型微环谐振器的研制[J]. 光学学报, 2007, 27(11): 1935. 董小伟, 裴丽, 冯素春, 鲁韶华, 许鸥. Study and Fabrication of All-Fiber Microring Resonator[J]. Acta Optica Sinica, 2007, 27(11): 1935.

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