We report on NIR efficient end-coupling in single-mode silicon on insulator waveguides. Efficient coupling has been achieved using Polymer-Tipped Optical Fibers (PTOF) of adaptable radius of curvature (ROC). When compared with commercial micro lenses, systematic studies as a function of PTOF ROC, lead for subwavelength PTOF to a coupling factor enhancement as high as 2.5. This experimental behavior is clearly corroborated by radial FDTD simulations and an absolute coupling efficiency of about 50% is also estimated.
Enhanced light coupling in sub-wavelength single-mode silicon on insulator waveguides / C., Pang; Gesuele, Felice; A., Bruyant; S., Blaize; G., L?rondel; P., Royer. - In: OPTICS EXPRESS. - ISSN 1094-4087. - 17:9(2009), pp. 6939-6945. [10.1364/OE.17.006939]
Enhanced light coupling in sub-wavelength single-mode silicon on insulator waveguides
GESUELE, FELICE;
2009
Abstract
We report on NIR efficient end-coupling in single-mode silicon on insulator waveguides. Efficient coupling has been achieved using Polymer-Tipped Optical Fibers (PTOF) of adaptable radius of curvature (ROC). When compared with commercial micro lenses, systematic studies as a function of PTOF ROC, lead for subwavelength PTOF to a coupling factor enhancement as high as 2.5. This experimental behavior is clearly corroborated by radial FDTD simulations and an absolute coupling efficiency of about 50% is also estimated.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
