| 一种可调能量输出比光子晶体波导耦合分束器 |
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| 引用本文： | 石哲,廖清华. 一种可调能量输出比光子晶体波导耦合分束器[J]. 光通信研究, 2009, 35(3): 43-44 |
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| 作者姓名： | 石哲 廖清华 |
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| 作者单位： | 南昌大学,理学院,江西,南昌,330031 |
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| 基金项目： | 江西省教育厅科学研究课题，江西省自然科学基金，集成光电子国家重点实验室(半导体研究所)开放课题 |
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| 摘 要： | 在完整三角形光子晶体中引入3条相互平行的单模波导形成定向耦合型分束器,非对称地改变波导间耦合区的介质柱的折射率,可实现能量输出端口能量比的改变.时域有限差分数值仿真结果表明,耦合区介质柱折射率在改变量较小时,能保证分束器有较高的能量透过率,且能实现输出端口能量输出比在一定范围内的调节.
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| 关 键 词： | 光子晶体 定向耦合分柬器 能量输出比 |
| 收稿时间： | 2009-01-07 |
An energy-output-ratio adjustable coupling power splitter for photonic crystal waveguides |
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| Shi Zhe,Liao Qinghua. An energy-output-ratio adjustable coupling power splitter for photonic crystal waveguides[J]. Study on Optical Communications, 2009, 35(3): 43-44 |
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| Authors: | Shi Zhe Liao Qinghua |
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| Affiliation: | School of Science;Nanchang University;Nanchang 330031;China |
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| Abstract: | A directional coupling power splitter is formed when three parallel monomode waveguides are introduced in perfect triangle photonic crystals.When the refractive indexes of the dielectric columns between the waveguides in the coupling zone are asymmetrically changed,the output energy ratio at the energy output ports will be altered.FDTD-based numerical simulation results indicate that when the refractive index is changed in small amounts,the splitter will have a higher energy transmission ratio and the outpu... |
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| Keywords: | photonic crystal directional coupling power splitter energy output ratio |
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