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grating based coupler

Posted Apr 16, 2013, 3:56 a.m. EDT 0 Replies

Sara Kian
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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

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0 Replies Last Post Apr 16, 2013, 3:56 a.m. EDT
COMSOL Moderator

Hello Sara Kian

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