[TuP-E] Poster Session 1

[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 (1. I-Shou University (Taiwan), 2. Southern Methodist University (United States of America))

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.