Title :
Ray analysis of W-type slab optical waveguides with core distortions
Author :
Kawakami, Shojiro ; Nishida, Shigeo
Author_Institution :
Tohoku University, Research Institute of Electrical Communication, Sendai, Japan
Abstract :
The letter considers a W-type slab waveguide in which a number of modes propagate. The significant feature is found to be the mode reservoir effect of a ray temporarily transformed into a leaky ray, owing to imperfections of the guide. Such disturbances cause little radiation loss if they are localised within the attenuation length of the leaky ray.
Keywords :
guided light propagation; optical waveguide theory; W-type slab optical waveguides; attenuation length; core distortions; guided modes; leaky ray; mode reservoir effect; ray analysis;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19750409
