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Efficient focusing polymer waveguide grating couplers

 
: Waldhäusl, R.; Bräuer, A.; Schnabel, B.; Kley, E.-B.

:

Electronics Letters 33 (1997), Nr.7, S.623-624
ISSN: 0013-5194
Englisch
Zeitschriftenaufsatz
Fraunhofer IOF ()
optical polymer; optical waveguides

Abstract
Investigations on focusing grating fabricated in polymer waveguides by electron beam lithography are reported. With blazed gratings, an incoupling efficiency of 42 per cent is achieved. A curvature correction of the grating lines allow the focusing properties to be improved: a spotsize which corresponds to one and a half times the diffraction limit is archieved.

: http://publica.fraunhofer.de/dokumente/PX-10726.html