title: Compact silicon photonic resonance-sssisted variable optical attenuator.
abstract: A two-part silicon photonic variable optical attenuator is demonstrated in a compact footprint which can provide a high extinction ratio at wavelengths between 1520 nm and 1620 nm. The device was made by following the conventional p-i-n waveguide section by a high-extinction-ratio second-order microring filter section. The rings provide additional on-off contrast by utilizing a thermal resonance shift, which harvested the heat dissipated by current injection in the p-i-n junction. We derive and discuss a simple thermal-resistance model in explanation of these effects.
authors.forename: Xiaoxi
authors.initials: X
authors.lastname: Wang
authors.forename: Ryan
authors.initials: R
authors.lastname: Aguinaldo
authors.forename: Anthony
authors.initials: A
authors.lastname: Lentine
authors.forename: Christopher
authors.initials: C
authors.lastname: DeRose
authors.forename: Andrew L
authors.initials: AL
authors.lastname: Starbuck
authors.forename: Douglas
authors.initials: D
authors.lastname: Trotter
authors.forename: Andrew
authors.initials: A
authors.lastname: Pomerene
authors.forename: Shayan
authors.initials: S
authors.lastname: Mookherjea