DocumentCode
1551302
Title
Low-loss arrayed-waveguide grating with high index regions at slab-to-array interface
Author
Maru, K. ; Chiba, T. ; Okawa, M. ; Ishikawa, H. ; Ohira, K. ; Sato, S. ; Uetsuka, H.
Author_Institution
Optoelectron. Syst. Lab., Hitachi Ltd., Ibaraki, Japan
Volume
37
Issue
21
fYear
2001
fDate
10/11/2001 12:00:00 AM
Firstpage
1287
Lastpage
1289
Abstract
A novel structure is proposed to reduce the transition loss of an arrayed-waveguide grating. The structure comprises high refractive-index regions formed at the core of slab waveguides in the vicinity of an array with ultraviolet (UV) irradiation. The insertion loss was reduced by 3.0 dB after UV irradiation. The minimum insertion loss became 2.1 dB, which includes fibre-to-chip loss of ~0.8 dB
Keywords
diffraction gratings; optical arrays; optical communication equipment; optical losses; optical waveguide components; refractive index; ultraviolet radiation effects; 0.8 dB; 2.1 dB; UV irradiation; array; arrayed-waveguide grating; fibre-to-chip loss; high index regions; high refractive-index regions; insertion loss; low-loss arrayed-waveguide grating; minimum insertion loss; slab waveguides; slab-to-array interface; transition loss; ultraviolet irradiation;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20010870
Filename
968437
Link To Document