Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

grating based coupler

Hi,
I am trying to simulate a four port grating-based coupler (or filter) by comsol 3.5 but I have some problems :

first : I used port condition for 4 ports that one of them is in-port but I don't know where I should enter the input (in which part )?

second : I don't know which kind of input I should apply?

third : I need to get outputs in three other ports ,so which kind of solver I should use and how can I see the output figures?
I really need help, can anyone guide me?

I attached the figure

Thanks.

sara


0 Replies Last Post Apr 16, 2013, 3:56 AM EDT
COMSOL Moderator

Hello Sara Kian

Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.

If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.