title: Crosstalk-free design for the intersection of two dielectric waveguides.
abstract: We propose an efficient method to reduce the crosstalk, reflection and radiation at the crossing of two dielectric waveguides in a on-chip optical interconnect network. By increasing the vertical thickness of the guides locally in the crossing region, we create better mode-matching interfaces that dramatically reduce losses. The idea is demonstrated using numerical simulations. More than 95% crosstalk power reduction and 90% reflection power reduction are observed, while the radiation power can be reduced by 40%. The method is compatible with the planar integrated circuit technique.
authors.affiliation: Information and Quantum Systems Lab, Hewlett-Packard Laboratories, Palo Alto, CA, USA. jingjingl@hp.com
authors.forename: Jingjing
authors.initials: J
authors.lastname: Li
authors.forename: David A
authors.initials: DA
authors.lastname: Fattal
authors.forename: Raymond G
authors.initials: RG
authors.lastname: Beausoleil
mesh_terms: D000465:Algorithms; D016477:Artifacts; D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008962:Models, Theoretical; D055096:Optical Devices; D012031:Refractometry / Q000295:instrumentation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity