title: Elimination of cross-talk in waveguide intersections of triangular lattice photonic crystals.
abstract: We design an intersection for crossing waveguides in triangular lattice photonic crystals with cross-talk smaller than 10(-5). The cross-talk to the transverse waveguides is suppressed by symmetry mismatch between the cavity mode and the waveguide mode or by the mode-gap effect induced by air hole radius modulation of the waveguides. The transmission behavior of the crossing waveguides are illustrated by numerical simulations through finite difference time domain method.
authors.affiliation: Technische Physik, Universität Würzburg, Am Hubland, Würzburg, Germany. soonhong.kwon@physik.uni-wuerzburg.de
authors.forename: Soon-Hong
authors.initials: SH
authors.lastname: Kwon
authors.forename: Martin
authors.initials: M
authors.lastname: Kamp
authors.forename: Alfred
authors.initials: A
authors.lastname: Forchel
authors.forename: Min-Kyo
authors.initials: MK
authors.lastname: Seo
authors.forename: Yong-Hee
authors.initials: YH
authors.lastname: Lee
mesh_terms: D016477:Artifacts; D003198:Computer Simulation; D017076:Computer-Aided Design; D003460:Crystallization / Q000379:methods*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D008422:Materials Testing; D008962:Models, Theoretical; D055095:Optics and Photonics / Q000295:instrumentation*; D017785:Photons; D012542:Scattering, Radiation; D014159:Transducers