DocumentCode
768070
Title
Controlling coupling of guided to radiating modes using adiabatic transitions between waveguides of different curvature
Author
Berlatzky, Yoav ; Shtrichman, Itay ; Narevich, Romanas ; Narevicius, Edvardas ; Rosenblum, Gershon ; Vorobeichik, Ilya
Author_Institution
Phys. Dept., Technion-Israel Inst. of Technol., Haifa, Israel
Volume
23
Issue
3
fYear
2005
fDate
3/1/2005 12:00:00 AM
Firstpage
1278
Lastpage
1283
Abstract
A simple method for designing adiabatic transitions between straight and curved waveguides is presented. This method results in lower coupling from guided to radiating modes than conventional methods based on introducing an abrupt offset at the junction point. With the new adiabatic transition design, a decrease of 5 to 10 dB in the low-level radiating light cone is found compared with the traditional method.
Keywords
integrated optics; optical couplers; optical design techniques; optical waveguides; waveguide junctions; adiabatic transitions; guided-radiating mode coupling; waveguides; Interference; Optical coupling; Optical losses; Optical planar waveguides; Optical propagation; Optical waveguides; Planar waveguides; Resonance; Solid modeling; Waveguide transitions; Integrated optics; optical losses; optical planar waveguides; waveguide bends;
fLanguage
English
Journal_Title
Lightwave Technology, Journal of
Publisher
ieee
ISSN
0733-8724
Type
jour
DOI
10.1109/JLT.2004.840006
Filename
1417026
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