Title :
TE-TM mode conversion of an optical beam wave in thin-film optical waveguides
Author_Institution :
Dept. of Electron., Kyushu Inst. of Technol., Kitakyushu, Japan
fDate :
4/1/1988 12:00:00 AM
Abstract :
The TE-TM mode conversion efficiency when a Gaussian beam wave propagates in thin-film optical waveguides is discussed. For film thicknesses at which strong coupling between the TE and TM modes is obtained, two hybrid modes have oppositely rotating circular polarizations, or linear polarizations perpendicular to each other with equal magnitude of TE-wave and TM-wave components. In the former (i.e. circular polarization), complete TE-TM mode conversion is impossible. In the latter (i.e. linear polarization) complete TE-TM mode conversion is available. These claims are based on the fact that the direction of power flow of the hybrid modes depends on the polarization
Keywords :
light polarisation; light propagation; optical waveguide theory; thin film devices; Gaussian beam wave; TE-TM mode conversion; conversion efficiency; hybrid modes; light propagation; linear polarizations; optical beam wave; power flow direction; rotating circular polarizations; strong coupling; thin-film optical waveguides; Anisotropic magnetoresistance; Dielectric substrates; Geometrical optics; Load flow; Optical beams; Optical films; Optical polarization; Optical refraction; Optical waveguides; Tellurium;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
