| 一种闭环控制的光纤光栅动态色散补偿仪 |
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| 引用本文： | 叶青,刘峰,瞿荣辉,方祖捷. 一种闭环控制的光纤光栅动态色散补偿仪[J]. 中国激光, 2005, 32(5): 81-684 |
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| 作者姓名： | 叶青 刘峰 瞿荣辉 方祖捷 |
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| 作者单位： | 中国科学院上海光学精密机械研究所信息光学实验室,上海,201800 |
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| 基金项目： | 国家973计划(2001CCA04600)，中国科学院知识创新试点工程，上海市科委科技发展基金(02dj14001)资助项目。 |
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| 摘 要： | 利用啁啾光纤光栅的应变调谐特性，将色散补偿的啁啾光纤光栅斜贴于悬臂梁的侧面，通过应力实现啁啾量调整而改变其色散补偿量的大小，同时利用固定在同一悬臂梁的均匀布拉格光栅传感器，实现了闭环自动控制色散补偿量，研制出了一种新型的光纤光栅动态色散补偿仪。该色散补偿仪工作在1550nm波段，典型性能数据为：色散动态补偿范围-1000-1680ps／nm，插入损耗小于1．5dB，动态调谐步进响应时间小于50ms，基本上能满足10Gb／s光纤通信系统中色散动态补偿的要求。
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| 关 键 词： | 光纤光学 啁啾光纤光栅 动态色散补偿 闭环控制 |
| 收稿时间： | 2004-03-26 |
Close-Loop Controlled Fiber Grating Dynamic Dispersion Compensator |
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| YE Qing,LIU Feng,QU Rong-hui,FANG Zu-jie. Close-Loop Controlled Fiber Grating Dynamic Dispersion Compensator[J]. Chinese Journal of Lasers, 2005, 32(5): 81-684 |
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| Authors: | YE Qing LIU Feng QU Rong-hui FANG Zu-jie |
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| Abstract: | A new chirped fiber Bragg grating dynamic dispersion compensator at 1550 nm band is presented by using stain-tuning characteristics of the grating, and using a narrow band fiber Bragg grating fixed on the same bent beam as a sensor for close-loop control of the dispersion compensation amount. Its typical measured data are as follows. Dispersion compensation tunable range was measured to be -1000～-1680 ps/nm; its insertion loss and dynamic response time were measured less than 1.5 dB and 50 ms, respectively. |
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| Keywords: | fiber optics chirped fiber grating dynamic dispersion compensation close-loop control |
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