| 低功耗非线性光纤光栅全光开关 |
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| 引用本文： | 张兵,徐文成,李淳飞.低功耗非线性光纤光栅全光开关[J].物理,2011,40(5):326-332. |
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| 作者姓名： | 张兵 徐文成 李淳飞 |
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| 作者单位： | 华南师范大学信息光电子科学技术学院,广州,510631 |
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| 基金项目： | 国家自然科学基金，广东省自然科学基金 |
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| 摘 要： | 全光开关是未来全光通信和光计算机的关键器件.已经研究过的全光开关的种类很多,其中光纤光栅全光开关最容易与光纤系统匹配.文章首先陈述两种基于普通石英光纤的单光栅全光开关,即光纤布拉格光栅(FBG)全光开关和长周期光纤光栅(LPFG)全光开关,这两种低非线性的光开关要求千瓦量级的高开关功率,故不宜应用;然后重点介绍两种高非线性的光纤光栅全光开关,它们分别由单个高非线性FBG和用高非线性光纤连接的LPFG对构成.文章所介绍的非线性光纤材料是以掺稀土石英光纤为例.这两种高非线性的光纤光栅全光开关具有毫瓦量级的低开关功率,有可能获得实际应用.
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| 关 键 词： | 全光开关 光纤光栅 非线性光学 |
All-optical switches based on nonlinear fiber gratings |
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| ZHANG Bing,XU Wen-Cheng,LI Chun-Fei.All-optical switches based on nonlinear fiber gratings[J].Physics,2011,40(5):326-332. |
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| Authors: | ZHANG Bing XU Wen-Cheng LI Chun-Fei |
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| Institution: | ZHANG Bing XU Wen-Cheng LI Chun-Fei(School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510631, China) |
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| Abstract: | The all-optical switch (AOS) is a key device for future all-optical communication and all-optical computing.There are many types of AOSs that have been investigated;one of them is the fiber-grating AOS,which is easily matched with fiber systems.We first describe two kinds of ordinary silica single fiber-grating AOSs based on the fiber Bragg grating (FBG) and the long-period fiber grating (LPFG),respectively.Both of these require kilowatt switching powers,so they cannot be used in practice.Secondly, we intro... |
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| Keywords: | fiber grating all-optical switching nonlinear optics |
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