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 :
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