{"id":358729,"date":"2024-03-25T06:29:52","date_gmt":"2024-03-25T06:29:52","guid":{"rendered":"\/forum\/forums\/topic\/how-to-obtain-the-propagation-loss-in-phase-shifted-bragg-grating-waveguide\/"},"modified":"2024-03-25T06:29:52","modified_gmt":"2024-03-25T06:29:52","slug":"how-to-obtain-the-propagation-loss-in-phase-shifted-bragg-grating-waveguide","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/how-to-obtain-the-propagation-loss-in-phase-shifted-bragg-grating-waveguide\/","title":{"rendered":"How to obtain the propagation loss in phase-shifted bragg grating waveguide"},"content":{"rendered":"

Good day,<\/p>\n

I’m trying to obtain an accurate propagation loss in the phase-shifted Bragg grating structure by using two analysis methods: EME solver and 3D FDTD, respectively. Although I know the solution using FDE solver to multiply loss by the total length, it is preferred for infinite waveguides rather than for the grating structures. There are additional losses which are the sum of radiation loss, coupling loss, scattering loss, and so on.<\/p>\n

It is important for me to ultimately calculate the Q factor by using the obtained losses. I would be grateful if someone could introduce the right method to calculate these losses.<\/p>\n

Thank you.<\/p>\n","protected":false},"template":"","class_list":["post-358729","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t