title: Silicon on ultra-low-loss waveguide photonic integration platform.
abstract: We demonstrate a novel integrated silicon and ultra-low-loss Si3N4 waveguide platform. Coupling between layers is achieved with (0.4 ± 0.2) dB of loss per transition and a 20 nm 3-dB bandwidth for one tapered coupler design and with (0.8 ± 0.2) dB of loss per transition and a 100 nm 3-dB bandwidth for another. The minimum propagation loss measured in the ultra-low-loss waveguides is 1.2 dB/m in the 1590 nm wavelength regime.
authors: Department of Electrical and Computer Engineering, University of California, Santa Barbara, CA 93106, USA. jbauters@ece.ucsb.edu
authors: Jared F
authors: JF
authors: Bauters
authors: Michael L
authors: ML
authors: Davenport
authors: Martijn J R
authors: MJ
authors: Heck
authors: J K
authors: JK
authors: Doylend
authors: Arnold
authors: A
authors: Chen
authors: Alexander W
authors: AW
authors: Fang
authors: John E
authors: JE
authors: Bowers