非对称结构阵列波导光栅解复用器的传输效率  

Transmission Efficiency of Dissymmetrical Structure Arrayed Waveguide Grating Demultiplexer

作　　者：郭福源[1] 王明华[1] 

机构地区：[1]浙江大学信息与电子工程学系

出　　处：《半导体光电》2007年第2期161-165,共5页Semiconductor Optoelectronics

基　　金：国家自然科学基金重点项目(60436020);福建省自然科学基金项目(A0540001);福建省科学技术厅K类项目(K04022)

摘　　要：基于光波导模场分布的高斯函数近似表达式,给出非对称结构阵列波导光栅解复用器信号通道对其中心波长光谱响应度的函数表达式,分析了光谱响应度与器件基本参数的关系。基于实际通道信号光谱分布的高斯函数近似表达,给出非对称结构阵列波导光栅解复用器信号通道对实际输入信号的传输效率,分析了输入信号光谱宽度对器件通道实际传输效率的影响。Based on the expression of Gaussian approximation for the optical waveguide mode field distribution, the functional expression of spectral responsivity of dissymmetrical structure arrayed waveguide grating demultiplexer for its center wavelength is presented,and the relationship between the spectral responsivity and the basis parameters of this demultiplexer is discussed. According to the expression of Gaussian approximation for the spectral distribution of actual channel optical signal, the transmission efficiency of signal channel of dissymmetrical structure arrayed waveguide grating demultiplexer for actual input optical signal is introduced, and the influence of spectral width of the input signal on the transmission efficiency of this demultiplexer is analyzed.

关 键 词：阵列波导光栅 光谱响应度 传输效率 高斯近似 

分 类 号：TN256[电子电信—物理电子学]