Summary: COUPLED MODE THEORY
MODELING AND ANALYSIS
CIRCULAR OPTICAL MICRORESONATORS
Kirankumar Rajshekhar Hiremath
The research presented in this dissertation was carried out at the Applied Analysis
and Mathematical Physics group, the faculty of Electrical Engineering, Mathemat-
ics and Computer Science, and MESA+ Research Institute, University of Twente,
P. O. Box 217, 7500 AE, Enschede, The Netherlands.
This research was carried out as a part of the European Commission funded project
"Next generation Active Integrated optic Subsystems" (project IST-2000-28018).
Front cover: Field examples for a 2-D microdisk resonator. The plots show ab-
solute value |Ey| of the principal component of the TE fields (top), and snapshots
of the real physical electric field Ey (bottom). From left to right, the field plots
illustrate microresonator in off-resonance state, in TE1 resonance state, and in TE0
resonance state. The color scale levels of the plots in each row are comparable. For
further details refer to Section 4.4.2.
Using just four relevant basis modes (the fundamental mode of a straight wave-
guide, and the first three lower order modes of a bent waveguide), the simulations