Title :
Mode field profile converting optical channel waveguide with tapered refractive index and cross-section
Author :
Yanagawa, H. ; Nakamura, S. ; Watanabe, K. ; Miyazawa, H.
Author_Institution :
Furukawa Electr. Co. Ltd., Chiba, Japan
fDate :
6/22/1989 12:00:00 AM
Abstract :
A mode field size converting optical channel waveguide with tapered refractive index and cross-sectional dimensions is proposed. The layer thicknesses and the core index of a silica waveguide were tapered along the waveguide by modulating the raw material gas flow in a flame hydrolysis deposition method. A channel width taper was also formed by photolithography.
Keywords :
integrated optics; optical couplers; SiO 2 waveguide; channel width taper; core index; fabrication; fibre to guided-wave device coupling; flame hydrolysis deposition method; layer thicknesses; mode field profile conversion; mode field size converting optical channel waveguide; optical coupling loss reduction; photolithography; tapered cross section; tapered refractive index;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19890572
