Title :
Exact coupled-mode theories for multilayer interference coatings with arbitrary strong index modulations
Author :
Matuschek, Nicolai ; Kärtner, Fraz X. ; Keller, Ursula
Author_Institution :
Inst. of Quantum Electron., Swiss Federal Inst. of Technol., Zurich, Switzerland
fDate :
3/1/1997 12:00:00 AM
Abstract :
The analysis of multilayered interference coatings by coupled-mode theory is considered to be an approximation useful for small index, gain, and/or loss modulations. In this paper, we show that an exact analysis of a multilayer coating with coupled-mode theory is possible by redefining the coupling and detuning coefficients. We derive the correct coefficients for the case of a Bragg mirror consisting of layers with arbitrary high and low refractive indexes. A detailed comparison with coupled-mode theories using the standard coupling and detuning coefficients is presented
Keywords :
coupled mode analysis; diffraction gratings; interference filters; mirrors; optical films; optical modulation; refractive index; Bragg grating; Bragg mirror; coupling coefficients; detuning coefficients; exact coupled-mode theories; high refractive indexes; low refractive indexes; multilayer interference coatings; strong index modulations; Bragg gratings; Coatings; Coupled mode analysis; Couplings; Filters; Interference; Mirrors; Nonhomogeneous media; Optical waveguides; Refractive index;
Journal_Title :
Quantum Electronics, IEEE Journal of
