Multiple input ports in RF problems

Hello,

I'am doing a simulation with RF module. It's about the mode analysis of a rectangular silicon waveguide.

There are two waveguides.

To propagate the monochromatic light of 1550nm (1.935e14 Hz ), I've put two extremity of the length of Silicon waveguide1 and waveguide2 as "excitation port1 and port2"(type "numeric", input power:1watt)

For the result of the "Boundary Mode Analysis", I can obtain the solutions of "effective mode index".
One problem is here. When I simulated by "Boundary Mode Analysis" , I couldn't get results from waveguide 1 and waveguide 2 simultaneously. So I restored just one boundary result from waveguide1 surface.
So as for the distribution of intensity of electric field, it's just result from waveguide1.

So my question is How can I get results from waveguide 1 and waveguide 2 simultaneously and
why I can't obtain a good distribution of electric field, because results seems abnormal theoretically (at least I think It will be symmetric.). Maybe there are some nessesary parameters that I haven't defined?

Waiting sincerely for your help, I'am really a "rookie" for COMSOL.

Best regards,
Jisu