title: High-speed electro-optic control of the optical quality factor of a silicon microcavity.
abstract: We demonstrate electro-optic ultrafast control of the optical quality factor of an on-chip silicon microcavity. The micrometer-sized cavity is formed by light confinement between two microring resonators acting as frequency selective mirrors. The ring resonators are integrated into p-i-n junctions enabling ultrafast injection and extraction of carriers. We show tuning of the cavity quality factor from 20,000 to 6,000 in under 100 ps. We demonstrate both high-Q to low-Q and low-Q to high-Q transitions.
authors.affiliation: School of Electrical and Computer Engineering, Cornell University, Ithaca, New York 14853, USA. ml292@cornell.edu
authors.forename: Sasikanth
authors.initials: S
authors.lastname: Manipatruni
authors.forename: Carl B
authors.initials: CB
authors.lastname: Poitras
authors.forename: Qianfan
authors.initials: Q
authors.lastname: Xu
authors.forename: Michal
authors.initials: M
authors.lastname: Lipson