title: Achromatic waveguide coupling with a hybrid grating-mirror.
abstract: A new grating coupler that incorporates a hybrid grating-mirror is proposed. An analysis of the device indicates that it has a much larger achromatic range than that of conventional grating couplers, as well as a relaxed fabrication requirement for the grating.
authors.forename: Q
authors.initials: Q
authors.lastname: Huang
authors.forename: P R
authors.initials: PR
authors.lastname: Ashley