| 线性啁啾光栅的反射光延迟调谐的研究 |
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| 引用本文： | 李正.线性啁啾光栅的反射光延迟调谐的研究[J].淮阴师范学院学报(自然科学版),2006,5(2):121-124. |
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| 作者姓名： | 李正 |
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| 作者单位： | 淮阴师范学院,物理与电子学系,江苏,淮安,223001 |
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| 基金项目： | 江苏省教育厅自然科学基金 |
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| 摘 要： | 提出通过变化线性啁啾光栅长度,达到调制的反射光延迟时的目的.在单模光纤中的光方程的基础上,对Bragg方程中的折射率、周期、反射光的反射点三个参数进行数学分析,得到了Bragg波长反射光延时量与线性啁啾光栅长度变化量成正比的结论.提出了延迟量为450ps的连续可调的延迟线模型.
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| 关 键 词： | 相控阵雷达 实时延迟线 线性啁啾光栅 Bragg波长 |
| 文章编号： | 1671-6876（2006）02-0121-04 |
| 收稿时间： | 2005-12-28 |
| 修稿时间： | 2005年12月28 |
The Study of Modulate Time-delay of the Reflex in Chirped Fiber Grating |
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| LI Zheng.The Study of Modulate Time-delay of the Reflex in Chirped Fiber Grating[J].Journal of Huaiyin Teachers College(Natrual Science Edition),2006,5(2):121-124. |
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| Authors: | LI Zheng |
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| Abstract: | The author proposes the method that modulate time-delay of the reflex with changing the length of chirped fiber grating with an optical carrier at constant wavelength.Analysing three of refactive index and periods and reflect point in Bragg equation by the maths method base on the trasmition equation of the single mode fiber,the conclusion that the magnitude of true-time delay of the Bragg Wavelength reflex in a line chirped fiber grating is in directly proportion to the elongation of the line chirped fiber grating.In this paper,the schem that can analog modulates the magnitude of true-time delay of 450?ps is introduced. |
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| Keywords: | phased array antennas True-time delay line Line chirped fiber grating Bragg wavelength |
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