光学学报, 2007, 27 (12): 2133, 网络出版: 2007-12-15   

利用非均匀镀铜技术实现光纤光栅的色散可调

The Dispersion of Fiber Gratings Can be Tunable by Using Nonuniform Copper Plating Technology
李彬 1,2,*谭中伟 1,2刘艳 1,2王燕花 1,2任文华 1,2简水生 1,2
作者单位
1 全光网络与现代通信网教育部重点实验室, 北京 100044
2 北京交通大学光波技术研究所, 北京 100044
摘要
提出了一种利用非均匀镀铜技术在光纤光栅的外包层镀上径向均匀轴向厚度渐变的铜膜,通过温度控制来调节光纤光栅的啁啾量,从而实现光纤光栅的色散可调,用于动态的色散补偿。在理论方面,建立了完整的热平衡方程,对轴向厚度渐变镀铜膜光纤光栅在温度控制下的受力情况进行分析;分析了光纤光栅在同时受到温度变化和非均匀应力时的反射、时延、色散等特性,并进行了数值仿真。在实验方面,在自制的均匀光纤光栅上利用先真空镀后电镀的方法镀上了轴向厚度渐变的铜膜,并对镀膜后的光纤光栅利用温度调节装置进行测试,不同温度变化下光纤光栅的特性和理论仿真结果基本一致,从而验证了理论分析的正确性。
Abstract
The dispersion of fiber Bragg gratings can be tunable by plating the nonuniform copper film of gradient thickness on the outer cladding of fiber grating along the axis and can be used as dynamic dispersion compensators. The fiber grating's dispersion is adjustable by changing the temperatures of the grating. A numerical model based on thermal balance equations has been used to analyze the dynamic characteristics of the nonuniform copper coated gratings. The reflection spectrum, time delay curve, and dispersion property were also analyzed for those gratings. The model has been verified by experiments.
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李彬, 谭中伟, 刘艳, 王燕花, 任文华, 简水生. 利用非均匀镀铜技术实现光纤光栅的色散可调[J]. 光学学报, 2007, 27(12): 2133. 李彬, 谭中伟, 刘艳, 王燕花, 任文华, 简水生. The Dispersion of Fiber Gratings Can be Tunable by Using Nonuniform Copper Plating Technology[J]. Acta Optica Sinica, 2007, 27(12): 2133.

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