Title :
A unified approach for the analysis of grating-assisted couplers
Author_Institution :
Chinese Air Force, Taipei, Taiwan
fDate :
1/1/1993 12:00:00 AM
Abstract :
Two coupled-mode theories based on individual waveguide modes and compound system modes, respectively, are briefly reviewed with proper modification and new comments. The relation between these two theories is built and it is found that one theory is actually an efficient approximation of the other. Also, the reason why the results obtained with the first more accurate than those obtained with the second is found. The constraint on both approaches is shown
Keywords :
diffraction gratings; optical couplers; optical waveguide theory; compound system modes; coupled-mode theories; diffraction gratings; grating-assisted couplers; individual waveguide modes; Bragg gratings; Diffraction gratings; Directional couplers; Frequency; Hydrogen; Magnetic fields; Optical waveguide theory; Optical waveguides; Potential well; Waveguide theory;
Journal_Title :
Quantum Electronics, IEEE Journal of
