Presentation Information
[TuP-E-8]Analysis of High-Order Bragg Periodic Dielectric Waveguides by Floquet-Bloch Theory
○Nai-Hsiang Sun1, Yu-Zhe Guo1, I-Hsuan Chen1, Jung-Sheng Chiang1, Gary A. Evans2, Jerome K. Butler2 (1I-Shou Univ., 2Southern Methodist Univ.)
Keywords:
Tapered and grating waveguides for optical coupling
Floquet-Bloch Theory is proposed to analyze high-order gratings. At third- and fifth-order Bragg condition, the maximum reflectivity is 28.36% and 17.07%, respectively, while most of the power (over 90% off resonance) radiates to the substrate.