Reply To: Interconnect – Bragg grating

[Guilin Sun]

This will depend on your definition of TE mode. There are contradictory definitions about TE/TM. I wrote a post in Chinese  https://innovationspace.ansys.com/forum/forums/topic/ansys-insight-youguantetmpianzhenyijimoshiguangyuandewenti/#post-176494  You can goolge translate it. or simply read the following:

https://optics.ansys.com/hc/en-us/articles/360034914633-Finite-Difference-Time-Domain-FDTD-solver-introduction  FDTD uses this definition  TE:   Ex, Ey, Hz

however in the stack example: https://optics.ansys.com/hc/en-us/articles/360034914653-STACK-Optical-Solver-Overview 

It is the opposit.

BTW: for new questions please write a new post.