In homogeneous arrays of coupled waveguides, Floquet–Bloch waves are known to travel freely across the waveguides. We introduce a systematic discussion of the built-in patterning of the coupling constant between neighboring waveguides. Key patterns provide functions such as redirecting, guiding, and focusing these waves, up to nonlinear all-optical routing. This opens the way to light control in a functionalized discrete space, i.e., discrete photonics.
© 2009 Optical Society of America
Original Manuscript: March 26, 2009
Revised Manuscript: June 3, 2009
Manuscript Accepted: July 17, 2009
Published: August 11, 2009
J. M. Moison, N. Belabas, C. Minot, and J. A. Levenson, "Discrete photonics in waveguide arrays," Opt. Lett. 34, 2462-2464 (2009)