Title :
Spectral index method applied to rib and strip-loaded directional couplers
Author_Institution :
Dept. of Electron. & Electr. Eng., Sheffield Univ., UK
fDate :
2/1/1990 12:00:00 AM
Abstract :
The spectral index method is applied to both rib and strip-loaded directional couplers, both of which are widely used in optoelectronics. Analytical transcendental equations are constructed in terms of the polarised propagation constant β for the fundamental symmetric and antisymmetric modes. Excellent agreement with large scale mainframe programs is achieved for the calculated coupling lengths
Keywords :
directional couplers; guided light propagation; optical couplers; refractive index; variational techniques; antisymmetric modes; coupling lengths; optoelectronics; polarised propagation constant; rib directional coupler; spectral index method; strip-loaded directional couplers; symmetric modes; transcendental equations; variational principle;
Journal_Title :
Optoelectronics, IEE Proceedings J
