Title :
A spot-size transformer based on mode interference
Author :
Nakamura, T. ; Xu, C.L. ; Li, X. ; Huang, W.-P.
Author_Institution :
Kansai Electron. Res. Lab., NEC Corp., Shiga, Japan
fDate :
3/1/1998 12:00:00 AM
Abstract :
A novel mode-size transformer based on interference between guided and leaky modes is proposed and analyzed. Simulation shows significant improvement in spot-size transform efficiency per unit length, in comparison with the conventional tapered waveguide mode size converters based on mode evolution. Owing to its structural simplicity, easy fabrication is another merit of the new spot-size transformer.
Keywords :
integrated optics; optical communication equipment; optical losses; optical waveguide theory; optical waveguides; guided modes; leaky modes; light interference; mode evolution; mode interference; mode-size transformer; optical communication equipment; optical modules; simulation; spot-size transform efficiency; spot-size transformer; tapered waveguide mode size converters; Integrated optics; Interference; Optical coupling; Optical device fabrication; Optical devices; Optical fibers; Optical waveguide theory; Optical waveguides; Shape control; Waveguide junctions;
Journal_Title :
Photonics Technology Letters, IEEE
