Cutoff character and single-mode condition for channel waveguides of anisotropic crystals

• 作 者: 卓壮 张晓阳 王继扬 邵宗书 蒋民华
• 机 构: State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China,State Key Labora
• 出 处: Progress in Natural Science
• 发表日期: 1997年02期
• 关键词: anisotropic refractive eigenvalue waveguide graded normalized deduced cutoff pla

On the basis of introduction of electromagnetic wave theory of modes into channel waveguides of anisotropic crystals and analysis of effective index analytical method, the mode eigenvalue of channel waveguides with graded refractive index distributions has been obtained by combining the potential well model with WKB method. The mode cutoff character and single mode condition were deduced for the waveguides with either step-like or graded refractive index distributions.

On the basis of introduction of electromagnetic wave theory of modes into channel waveguides of anisotropic crystals and analysis of effective index analytical method, the mode eigenvalue of channel waveguides with graded refractive index distributions has been obtained by combining the potential well model with WKB method. The mode cutoff character and single mode condition were deduced for the waveguides with either step-like or graded refractive index distributions.