Vertical fiber-to-waveguide coupling using adapted fibers with an angled facet fabricated by a simple molding technique.
Vertical coupling between silicon-on-insulator waveguides and optical fibers is achieved using adapted fibers with an angled facet. The proposed coupling scheme is demonstrated for waveguides containing uniform one-dimensional grating couplers. A coupling efficiency of 32% and a 1 dB bandwidth of 32 nm are measured at a wavelength of 1550 nm. We demonstrate single-step fabrication of these fibers using a simple molding technique.
IMEC-Ghent University, Photonics Research Group, Gent, Belgium. stijn.scheerlinck@intec.ugent.be
Stijn
S
Scheerlinck
Jonathan
J
Schrauwen
Gunther
G
Roelkens
Dries
D
Van Thourhout
Roel
R
Baets