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折射率平面波导光栅耦合特性分析

Theoretical analysis of refractive-index planar waveguide grating couplers
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摘要 利用波导系统等效网络分析法,分析了折射率平面波导光栅的耦合特性。计算了影响光栅输入输出耦合的重要参数——损耗系数α,并通过数值计算分析了平面波导光栅各参数对损耗系数的影响。 Based upon equivalent transmission line method, a perturbation analysis on the guiding properties of refrac- tive-index gratings is presented. By numerical calculation, the leakage parameter α which influences the leakage energy into the diffracted orders due to the grating scatter, is achieved as functions of the grating parameters.
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出处 《光学技术》 CAS CSCD 北大核心 2011年第4期483-486,共4页 Optical Technique
关键词 导波光学 平面波导 折射率光栅 损耗系数 guided wave optics planar waveguide refractive-index gratings leakage parameter
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参考文献16

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