Title :
An effective method for coupling single-mode fiber to thin-film waveguide
Author :
Cai, Yuanmin ; Mizumoto, Tetsuya ; Ikegami, Eiji ; Naito, Yoshiyuki
Author_Institution :
Fac. of Eng., Tokyo Inst. of Technol., Japan
fDate :
5/1/1991 12:00:00 AM
Abstract :
An effective method for coupling optical signals from single-mode fibers to thin-film waveguides is proposed. The authors show that this method provides high coupling efficiency for connecting fibers of different core diameters to thin-film waveguides of different film thicknesses or refractive indexes. The authors summarize the theoretical treatment of the coupler. Examples of couplers designed for SiO2 -based materials as well as iron garnets are presented. Fabrication of the proposed coupler and its experimental results are described
Keywords :
fibre optics; optical couplers; optical films; optical waveguides; Fe garnets; SiO2 based materials; core diameters; coupling efficiency; film thicknesses; optical signals; refractive indexes; single-mode fiber; theoretical treatment; thin-film waveguide; Garnet films; Joining processes; Optical coupling; Optical fiber couplers; Optical films; Optical refraction; Optical variables control; Optical waveguide theory; Optical waveguides; Transistors;
Journal_Title :
Lightwave Technology, Journal of
