The properties of long period gratings in photonic crystal fibers (PCFLPG) are systematically analyzed by the improved full-vector effective index model and the coupled mode theory.
将修正的矢量等效折射率模型和耦合模理论相结合，系统地研究了光子晶体光纤长周期光栅(PCFLPG)的特性。
By the gaussian approximation and local mode-coupled theory, fused splice loss of step and parabolic index single mode elliptic core fibers have been analyzed, calculated and discussed.
采用高斯近似和局域模式耦合理论，对阶跃折射率分布和抛物线折射率分布椭圆芯单模光纤熔接接头损耗进行了分析、计算和讨论。
Within the coupled resonant frequency region, the negative index of refraction can be achieved.
在负的磁导率和负的介电常数重叠的频率区域，能得到一个负的折射系数。
The transmission through one-dimensional photonic crystal coupled-resonator containing defect layers with negative refractive index is studied by using transfer matrix method.
利用转移矩阵方法研究了含双负缺陷的一维光子晶体耦合腔的透射谱。
The transmission through one-dimensional photonic crystal coupled-resonator containing defect layers with negative refractive index is studied by using transfer matrix method.
利用转移矩阵方法研究了含双负缺陷的一维光子晶体耦合腔的透射谱。
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