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Coupling to a ring resonator

Posted Mar 17, 2011, 1:04 p.m. EDT MEMS & Nanotechnology, RF & Microwave Engineering, MEMS & Piezoelectric Devices Version 4.2a 5 Replies

Damla Ozcelik
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Hi,

I am having trouble with coupling from a waveguide to a ring resonator. Light is guided along the waveguide however it is not coupled to the ring resonator (the gap is close enough). How should I define the boundary conditions? I basically would like to see the spectrum of the ring resonator. Is it possible in Comsol?

thanks,
Damla
5 Replies Last Post Mar 12, 2013, 3:50 a.m. EDT
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago Mar 17, 2011, 4:37 p.m. EDT
Hi

your gap must be "closed" hence be part of the simulation, else the field/flux is not going to "jump the gap" But the material properties of this gap is not necessarily a solid, "empty" vacuum is also possible, with its RF properties, but it must be there and meshed

--
Good luck
Ivar
Hi your gap must be "closed" hence be part of the simulation, else the field/flux is not going to "jump the gap" But the material properties of this gap is not necessarily a solid, "empty" vacuum is also possible, with its RF properties, but it must be there and meshed -- Good luck Ivar
Felipe Beltran-Mejia
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Posted: 1 decade ago Apr 20, 2012, 3:30 p.m. EDT
Hi Damla,

I'm trying to do the same thing as you, I was wondering if you have any success in modeling the ring resonator in comsol and/or what troubles do you found on the way.

Thanks in advance.
--
Felipe
Hi Damla, I'm trying to do the same thing as you, I was wondering if you have any success in modeling the ring resonator in comsol and/or what troubles do you found on the way. Thanks in advance. -- Felipe
Zulhisham Kahar
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Posted: 1 decade ago Apr 23, 2012, 8:42 a.m. EDT
Hi Felipe and Damla,

I'm also studying the effect of coupling waveguides to a ring resonator. May we share the result of your simulation and compare the notes if you able to get the results.

Please do email me at zuldrac@yahoo.com

Thanks
Hi Felipe and Damla, I'm also studying the effect of coupling waveguides to a ring resonator. May we share the result of your simulation and compare the notes if you able to get the results. Please do email me at zuldrac@yahoo.com Thanks
Sara Nocentini
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Posted: 1 decade ago Nov 1, 2012, 6:04 p.m. EDT
Hi Felipe, Damia and Zulhisham,

I'm working on ring resonator now and I would like to do a simulation with an axial symmetric geometry to find the ring modes.

But I didn't see any confined mode. Have you ever tried to do this kind of simulation?

Thank you

Sara
Hi Felipe, Damia and Zulhisham, I'm working on ring resonator now and I would like to do a simulation with an axial symmetric geometry to find the ring modes. But I didn't see any confined mode. Have you ever tried to do this kind of simulation? Thank you Sara
ying ma
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Posted: 1 decade ago Mar 12, 2013, 3:50 a.m. EDT
Hi Sara,

I am doing the same thing as you, but I have no idea how to use the axial symmetric geometry to analysis the mode in the cross section of a ring resonator which is coupling with a slab waveguide. Have you manage to see mode there? Could you share some setting tips?

My email is ying,ma@tu-harburg.de

Thanks alooooot :)

Ying
Hi Sara, I am doing the same thing as you, but I have no idea how to use the axial symmetric geometry to analysis the mode in the cross section of a ring resonator which is coupling with a slab waveguide. Have you manage to see mode there? Could you share some setting tips? My email is ying,ma@tu-harburg.de Thanks alooooot :) Ying

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