DocumentCode
1362131
Title
Up and down UV-trimming of planar directional waveguide couplers: modeling
Author
Renner, Hagen
Author_Institution
Arbeitsbereich Opt. und Messtech., Tech. Univ. Hamburg-Harburg, Germany
Volume
12
Issue
7
fYear
2000
fDate
7/1/2000 12:00:00 AM
Firstpage
825
Lastpage
827
Abstract
In contrast to etched channel waveguide couplers, directional couplers UV-written into a photosensitive layer can be both down and up trimmed by UV post-illumination of the waveguide cores and of the separating photosensitive region, respectively. Theoretically, the coupling length can be corrected by 10%-40% several times, before the third supermode starts to propagate.
Keywords
etching; integrated optics; multiplexing equipment; optical communication equipment; optical directional couplers; optical fabrication; optical waveguide components; UV post-illumination; UV-written; coupling length; down UV-trimming; optical directional couplers; photosensitive layer; planar directional waveguide coupler model; separating photosensitive region; supermode; up UV-trimming; waveguide cores; Bragg gratings; Directional couplers; Etching; Optical filters; Optical propagation; Optical waveguide theory; Optical waveguides; Planar waveguides; Propagation constant; Silicon compounds;
fLanguage
English
Journal_Title
Photonics Technology Letters, IEEE
Publisher
ieee
ISSN
1041-1135
Type
jour
DOI
10.1109/68.853513
Filename
853513
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