How to simulate the whispering-gallery modes of dielectric microresonators in FEMLAB/COMSOL

Mark Oxborrow

doi:10.1117/12.714954

14 February 2007 How to simulate the whispering-gallery modes of dielectric microresonators in FEMLAB/COMSOL

Mark Oxborrow

Proceedings Volume 6452, Laser Resonators and Beam Control IX; 64520J (2007) https://doi.org/10.1117/12.714954
Event: Lasers and Applications in Science and Engineering, 2007, San Jose, California, United States

Abstract

It is explained how FEMLAB / COMSOL Multiphysics can be configured to calculate, the frequencies, electromagnetic-field patterns, mode volumes, filling factors, radiation losses ... of the whispering-gallery modes of axisymmetric microresonators. The method exploits COMSOL's ability to accept the definition of solutions to Maxwells equations in so-called 'weak form'. As no transverse approximation is imposed, it remains accurate even for so-called quasi-TM and -TE modes of low, finite azimuthal mode order, as are relevant to applications in non-linear/quantum optics. The method's utility is exemplified by simulating various microresonators in the form of dielectric toroids and disks.

Citation Download Citation

Mark Oxborrow "How to simulate the whispering-gallery modes of dielectric microresonators in FEMLAB/COMSOL", Proc. SPIE 6452, Laser Resonators and Beam Control IX, 64520J (14 February 2007); https://doi.org/10.1117/12.714954

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