DocumentCode
773262
Title
Four-sectioned polarization-independent directional coupler with extremely relaxed fabrication tolerances
Author
Granestrand, Per
Author_Institution
Ericsson Telecom, Stockholm, Sweden
Volume
4
Issue
6
fYear
1992
fDate
6/1/1992 12:00:00 AM
Firstpage
594
Lastpage
596
Abstract
A new type of polarization-independent directional coupler is proposed. The principle, which utilizes an electrode pattern in four sections, gives extremely large fabrication tolerances in terms of allowed values on the L/l/sub c/ ratios (physical length/coupling length) for the two polarizations. The concept is analyzed by coupled wave theory, and the result is checked for one case with the beam propagation method.<>
Keywords
directional couplers; electro-optical devices; integrated optics; optical couplers; optical workshop techniques; beam propagation method; coupled wave theory; coupling length; electrode pattern; electrooptic device; fabrication tolerances; four sections; optical switch; physical length; polarization-independent directional coupler; Directional couplers; Electrodes; Fabrication; Optical coupling; Optical fiber polarization; Optical fiber theory; Optical fibers; Switches; Telecommunication switching; Voltage;
fLanguage
English
Journal_Title
Photonics Technology Letters, IEEE
Publisher
ieee
ISSN
1041-1135
Type
jour
DOI
10.1109/68.141979
Filename
141979
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