DocumentCode
2924938
Title
The design of grating couplers with ultra-low radiation loss
Author
Ramadan, Tarek A.
Author_Institution
Electron. & Electr. Commun., Ain Shams Univ., Cairo, Egypt
Volume
2
fYear
2002
fDate
10-14 Nov. 2002
Firstpage
817
Abstract
A new approach is developed and used to minimize radiation loss in grating couplers. A comparison between different grating designs in a 2×2 backward coupler demonstrates that two parallel gratings can significantly reduce radiation loss.
Keywords
diffraction gratings; optical couplers; optical losses; optical waveguide theory; waveguide discontinuities; 2×2 backward coupler; TE modes; bi-directional beam propagation method; coupled optical waveguides; grating couplers; grating designs; lossless waveguide discontinuities; numerical computations; parallel gratings; radiation loss minimization; ultra-low radiation loss; Arrayed waveguide gratings; Couplers; Design engineering; Optical losses; Optical scattering; Optical waveguides; Tellurium; Transmission line matrix methods; Waveguide discontinuities; Waveguide junctions;
fLanguage
English
Publisher
ieee
Conference_Titel
Lasers and Electro-Optics Society, 2002. LEOS 2002. The 15th Annual Meeting of the IEEE
ISSN
1092-8081
Print_ISBN
0-7803-7500-9
Type
conf
DOI
10.1109/LEOS.2002.1159558
Filename
1159558
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