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Stigmatically focusing grating coupler

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2 Author(s)
M. Miler ; Czechoslovak Academy of Sciences, Institue of Radio Engineering & Electronics, Prague, Czechoslovakia ; M. Skalsky

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.

Published in:

Electronics Letters  (Volume:15 ,  Issue: 10 )