DocumentCode
1089869
Title
Calculation and experimental verification of two-dimensional focusing grating couplers
Author
Heitmann, Detlef ; Ortiz, Carmen
Author_Institution
IBM Research Laboratory, San Jose, CA
Volume
17
Issue
7
fYear
1981
fDate
7/1/1981 12:00:00 AM
Firstpage
1257
Lastpage
1263
Abstract
A ray tracing method has been performed to calculate the focus spot size of two-dimensional focusing grating couplers that are produced by holographic interferometry of freely propagating wavefronts. The calculations have been used to optimize the constructing optical configuration. Diffraction limited spot diameters of about 2 μm can be achieved for couplers at wavelength 632.8 nm. These spot sizes have been experimentally verified for coupling and focusing TE modes which are guided in sputtered glass films on Si substrates.
Keywords
Geometrical optics (GO); Holographic interferometry; Light-beam focusing; Optical diffraction gratings; Optical planar waveguide couplers; Couplers; Gratings; Holographic optical components; Holography; Optical diffraction; Optical films; Optical interferometry; Optical propagation; Ray tracing; Tellurium;
fLanguage
English
Journal_Title
Quantum Electronics, IEEE Journal of
Publisher
ieee
ISSN
0018-9197
Type
jour
DOI
10.1109/JQE.1981.1071260
Filename
1071260
Link To Document