Enhanced light coupling in sub-wavelength single-mode silicon on insulator waveguides

C Pang; F Gesuele; A Bruyant; S Blaize; G Lérondel; P Royer

doi:10.1364/oe.17.006939

Enhanced light coupling in sub-wavelength single-mode silicon on insulator waveguides

Opt Express. 2009 Apr 27;17(9):6939-45. doi: 10.1364/oe.17.006939.

Authors

C Pang¹, F Gesuele, A Bruyant, S Blaize, G Lérondel, P Royer

Affiliation

¹ Laboratoire de Nanotechnologies et d'Instrumentation Optique, ICD, CNRS (FRE2848), Université de Technologie de Troyes, Troyes, France.

PMID: 19399066
DOI: 10.1364/oe.17.006939

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.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Computer-Aided Design
Equipment Design
Equipment Failure Analysis
Refractometry / instrumentation*
Reproducibility of Results
Scattering, Radiation
Sensitivity and Specificity
Silicon / chemistry*
Transducers*

Substances

Silicon