A nonparaxial scalar diffraction integral is used to determine numerically the resonance modes of a two-dimensional nearly concentric Fabry–Perot resonator. Numerical examples are provided, and results are compared to those published by Laabs and Friberg [IEEE J. Quantum Electron. 35, 198 (1999)]. Discrepancies are reported and further discussed on the basis of the difference between the solution space supported by the numerical method used here and the one used by Laabs and Friberg.
© 2007 Optical Society of America
Diffraction and Gratings
Original Manuscript: December 21, 2006
Revised Manuscript: April 5, 2007
Manuscript Accepted: May 28, 2007
Published: September 21, 2007
Fabian Zomer, Viktor Soskov, and Alessandro Variola, "On the nonparaxial modes of two-dimensional nearly concentric resonators," Appl. Opt. 46, 6859-6866 (2007)