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| 基于二维光子晶体点缺陷可调谐光功率分配器 | |
| 引用本文： | 王荣,梁斌明,张礼朝,庄松林.基于二维光子晶体点缺陷可调谐光功率分配器[J].光学学报,2012,32(1):123001-227. |
| 作者姓名： | 王荣 梁斌明 张礼朝 庄松林 |
| 作者单位： | 王荣:上海理工大学光电信息与计算机工程学院, 上海 200093 梁斌明:上海理工大学光电信息与计算机工程学院, 上海 200093 张礼朝:上海理工大学光电信息与计算机工程学院, 上海 200093 庄松林:上海理工大学光电信息与计算机工程学院, 上海 200093 |
| 基金项目： | 国家973计划（2007CB935300）、国家自然科学基金（60777045）和上海市科学技术委员会07年创新项目（07DZ22026）资助课题。 |
| 摘 要： | 在二维矩形阵列结构硅光子晶体中去除中间一排硅柱形成线波导,在线波导右侧引入点缺陷。利用时域有限差分法(FDTD)模拟仿真以及数值分析研究线波导中光耦合特性,计算出两个通道的分光比,发现改变光子晶体的温度可以明显改变这两个通道的光功率比。基于此结构,提出了一种新的光功率分配器,可以获得大范围的光功率比值,从1∶1～90∶1都可以通过改变光子晶体的温度来实现,并且当温度从0℃～200℃就可以实现这一功能,最后设计了一款三通道可调谐光功率分配器,通过调节两个点缺陷区域内温度来实现光功率的分配。 |
| 关 键 词： | 光学器件 光子晶体 时域有限差分法 光功率分配器 点缺陷 光耦合特性 |
| 收稿时间： | 2011/6/29 |
Tunable Optical Power Splitter Based on the Point Defects of Two-Dimensional Photonic Crystal |
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| Wang Rong Liang Binming Zhang Lichao Zhuang Songlin.Tunable Optical Power Splitter Based on the Point Defects of Two-Dimensional Photonic Crystal[J].Acta Optica Sinica,2012,32(1):123001-227. | |
| Authors: | Wang Rong Liang Binming Zhang Lichao Zhuang Songlin |
| Institution: | Wang Rong Liang Binming Zhang Lichao Zhuang Songlin(College of Optical and Electronic Information Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China) |
| Abstract: | In two-dimensional rectangular array photonic crystal, one parallel line waveguides are formed by removing the middle line silicon pillars. On the right of the line waveguide, a point waveguide has been introduced. It′s coupling properties are investigated by use of finite-difference time-domain (FDTD) method and the splitting ratio of two channels has been counted. The results show that the splitting ratio changes obviously is found when the temperature of the photonic crystal is rising. A new optical power splitter is brought forward based on this research and a wide range of light power ratios, from 11 to 901 can be obtained. This function can be realized by regulating the temperature from 0 ℃ to 200 ℃. Finally a three channels and tunable optical power splitter is designed, which can distribute the power of the light by adjusting the two point defects′ temperature. |
| Keywords: | optical devices photonic crystal finite-difference time-domain optical power splitter point defect optical coupling characteristics |
| 本文献已被 CNKI 等数据库收录！ | |