Title :
Ray-optical determination of strong backward coupling coefficients of waveguide gratings by use of the rigorous coupled-wave theory
Author :
Suntak Park ; Seek Ho Song ; Cha Hwan Oh ; Pill Soo Kim
Author_Institution :
Dept. of Phys., Hanyang Univ., Seoul, South Korea
fDate :
Aug. 30 1999-Sept. 3 1999
Abstract :
For the calculation of the backward coupling coefficients of grating waveguide devices the rigorous ray-optics method (RROM) based on the rigorous coupled-wave theory (RCWT) is more rigorous than the other conventional methods of ray-optics and coupled modes. The RROM proposed can be applied to diffractive waveguide devices even with arbitrary grating shapes as well as with arbitrary coupling strength.
Keywords :
diffraction gratings; optical waveguide theory; ray tracing; backward coupling coefficients; coupling strength; diffractive waveguide devices; grating shapes; ray-optical determination; rigorous coupled-wave theory; rigorous ray-optics method; waveguide gratings; Coordinate measuring machines; Diffraction gratings; Geometry; Optical coupling; Optical diffraction; Optical filters; Optical refraction; Optical variables control; Optical waveguides; Read only memory;
Conference_Titel :
Lasers and Electro-Optics, 1999. CLEO/Pacific Rim '99. The Pacific Rim Conference on
Conference_Location :
Seoul, South Korea
Print_ISBN :
0-7803-5661-6
DOI :
10.1109/CLEOPR.1999.817961
