title: Robust silicon-on-insulator adiabatic splitter optimized by metamodeling.
abstract: A robust integrated power splitter based on a silicon-on-insulator adiabatic coupler configuration is demonstrated. The power separation is achieved by a slow and simultaneous change of phase and coupling constants. The geometrical parameters of the device are determined thanks to a metamodel-based iterative optimization strategy. Solving the multiple parameter problem together with a realistic bandwidth constraint provides a clear improvement of the power splitting stability. The robustness is confirmed experimentally on a single device and at the wafer scale.
authors.forename: Karim
authors.initials: K
authors.lastname: Hassan
authors.forename: Cédric
authors.initials: C
authors.lastname: Durantin
authors.forename: Vincent
authors.initials: V
authors.lastname: Hugues
authors.forename: Bertrand
authors.initials: B
authors.lastname: Szelag
authors.forename: Alain
authors.initials: A
authors.lastname: Glière