Title :
Stigmatically focusing grating coupler
Author :
Miler, M. ; Skalsky, M.
Author_Institution :
Czechoslovak Academy of Sciences, Institue of Radio Engineering & Electronics, Prague, Czechoslovakia
Abstract :
A grating coupler that couples out a spherical wave (stigmatic beam) from a planar optical waveguide is experimentally demonstrated. This kind of grating coupler is formed ho-lographically using two cylindrical waves with mutually perpendicular focal lines.
Keywords :
holographic gratings; integrated optics; optical couplers; diffraction gratings; holography; integrated optics; planar optical waveguide; spherical wave coupling out; stigmatically focusing grating coupler;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19790195
