DocumentCode
1066514
Title
Theory and experiments on grating couplers for thin-film waveguides
Author
Ghizoni, C.C. ; Bor-Uei Chen ; Chung Tang
Author_Institution
School of Electrical Engng., Cornell Univ., Ithaca, NY, USA
Volume
12
Issue
2
fYear
1976
fDate
2/1/1976 12:00:00 AM
Firstpage
69
Lastpage
73
Abstract
A theoretical and experimental study is made of the grating couplers for thin-film waveguides. It is shown that the perturbation series expansion of the field based upon the Green´s function approach can actually be summed to all orders to give an expression for the efficiency of grating couplers of arbitrary thickness. The results obtained by this theory are in good agreement with the experimental results obtained. It is also shown that the grating coupling efficiency depends strongly on the grating profile.
Keywords
diffraction gratings; optical waveguides; waveguide couplers; Green´s function approach; arbitrary thickness; efficiency; grating couplers; perturbation series expansion; profile dependence; thin film waveguides; Couplers; Diffraction; Gratings; Optical coupling; Optical propagation; Optical scattering; Optical waveguides; Scanning electron microscopy; Transistors; Waveguide theory;
fLanguage
English
Journal_Title
Quantum Electronics, IEEE Journal of
Publisher
ieee
ISSN
0018-9197
Type
jour
DOI
10.1109/JQE.1976.1069099
Filename
1069099
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