Confining light flow in weakly coupled waveguide arrays by structuring the coupling constant: towards discrete diffractive optics.
Structuring the coupling constant in coupled waveguide arrays opens up a new route towards molding and controlling the flow of light in discrete structures. We show coupled mode theory is a reliable yet very simple and practical tool to design and explore new structures of patterned coupling constant. We validate our simulation and technological choices by successful fabrication of appropriate III-V semiconductor patterned waveguide arrays. We demonstrate confinement of light in designated areas of one-dimensional semi-conductor waveguide arrays.
Belabas
Nadia
N
Laboratory of Photonics and Nanostructures -UPR20 CNRS, Route de Nozay, Marcoussis, F-91460, France. nadia.belabas@lpn.cnrs.fr
Bouchoule
Sophie
S
Sagnes
Isabelle
I
Levenson
Juan Ariel
JA
Minot
Christophe
C
Moison
Jean-Marie
JM