Menu

Discussion Forum

New Discussion
Filter

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.

Simulating 2D optical waveguide

Posted Feb 24, 2010, 2:48 p.m. EST RF & Microwave Engineering Version 5.2 3 Replies

David964
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Hi,

I am simulating a 2D optical waveguide for both TE and TM modes.

For TE waves I get reasonable result by setting the cladding core interface as perfect electric conductor.
I use excitation port with analytic mode and exist port also as analytic mode.

However, for TM modes I do not get a reasonable result (please see attached file).
I've switched the core-cladding interface to be perfect magnetic conductor.

Any comments will be helpful. Thanks.

Attachments:

3 Replies Last Post Oct 11, 2016, 8:31 a.m. EDT
COMSOL Moderator

Hello David964

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.

Sarbjit Singh
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 8 years ago May 20, 2016, 11:32 a.m. EDT
HELLO DAVID
in ur model u have not shown cladding.....only core is there.
what diameter off cladding u r taking...send me ur model.....i will guide you.
waiting for ur reply
HELLO DAVID in ur model u have not shown cladding.....only core is there. what diameter off cladding u r taking...send me ur model.....i will guide you. waiting for ur reply
Walter Frei COMSOL Employee

Please login with a confirmed email address before reporting spam

Posted: 8 years ago May 20, 2016, 11:38 a.m. EDT
Hello,

Regarding optical waveguide modeling in the full-wave regime, please see the following example:
www.comsol.com/model/dielectric-slab-waveguide-14709

You may also be interested in the beam-envelopes formulation, as shown here:
www.comsol.com/model/mach-zehnder-modulator-15061
www.comsol.com/model/optical-ring-resonator-notch-filter-22221
Hello, Regarding optical waveguide modeling in the full-wave regime, please see the following example: https://www.comsol.com/model/dielectric-slab-waveguide-14709 You may also be interested in the beam-envelopes formulation, as shown here: https://www.comsol.com/model/mach-zehnder-modulator-15061 https://www.comsol.com/model/optical-ring-resonator-notch-filter-22221
Joaquin Faneca
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 8 years ago Oct 11, 2016, 8:31 a.m. EDT
Hello,

I am trying to simulate the same model as you have attached before the Notch Filter, but I am trying to determine the parameters of the radius and the distance for other materials, I am doing a parametric sweep in the radius and in the distance between the waveguide and the microring resonator, and the problem appears when I try to plot the transmission in a surface plot with this two parameters.

Could you help me, please?

Often appears the next message:

No solution found for outer solution number 1000.
Hello, I am trying to simulate the same model as you have attached before the Notch Filter, but I am trying to determine the parameters of the radius and the distance for other materials, I am doing a parametric sweep in the radius and in the distance between the waveguide and the microring resonator, and the problem appears when I try to plot the transmission in a surface plot with this two parameters. Could you help me, please? Often appears the next message: No solution found for outer solution number 1000.

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.

Suggested Content