Influence of the group-velocity on the pulse propagation in 1D silicon photonic crystal waveguides
Influence of the group-velocity on the pulse propagation in 1D silicon photonic crystal waveguides
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DOI：
10.1007/s00339-010-6223-x
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发表时间：
2011-01
期刊：
影响因子：
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通讯作者：
Nicolae C. Panoiu;J. McMillan;Chee Wei Wong
中科院分区：
文献类型：
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作者：
Nicolae C. Panoiu;J. McMillan;Chee Wei Wong
本文详细分析了群速度对光脉冲在一维光子晶体波导中传播的动力学特性的影响。在我们的分析中使用的理论模型结合了线性光学性质的PhCW（GV色散和光学损耗），自由载流子（FC）的影响（FC色散和FC引起的光学损耗）和非线性光学效应（克尔非线性和双光子吸收）。我们的分析表明，不同于均匀波导的情况下，GV的脉冲，色散系数和波导的非线性系数是周期函数的传播距离。我们还证明了线性效应和非线性效应分别依赖于群速度vg和asand。
We present a detailed analysis of the influence of the group velocity (GV) on the dynamics of optical pulses upon their propagation in one-dimensional photonic crystal waveguides (PhCW). The theoretical model used in our analysis incorporates the linear optical properties of the PhCW (GV dispersion and optical losses), free-carrier (FC) effects (FC dispersion and FC-induced optical losses) and nonlinear optical effects (Kerr nonlinearity and two-photon absorption). Our analysis shows that, unlike the case of uniform waveguides, the GV of the pulse, dispersion coefficients, and the waveguide nonlinear coefficient are periodic functions with respect to the propagation distance. We also demonstrate that linear and nonlinear effects depend on the group velocity,vg, asand, respectively.