Fiber-to-chip coupler designed using an optical transformation.
Open Access
- 15 June 2012
- journal article
- Published by Optica Publishing Group in Optics Express
- Vol. 20 (13), 14705-14713
- https://doi.org/10.1364/oe.20.014705
Abstract
An integrated silicon photonics coupler for fiber to waveguide conversion was designed employing a transformation optics approach. Quasi-conformal mapping was used to obtain achievable material properties, which were realized by a distorted hexagonal lattice of air holes in silicon. The coupler, measuring only 10 μm in length and fabricated with a single-step lithography process, exhibits a peak simulated transmission efficiency of nearly 100% for in-plane mode conversion and a factor of 5 improvement over butt coupling for fiber to waveguide mode conversion in experimental testing.This publication has 28 references indexed in Scilit:
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