title: Unidirectional hybrid silicon ring laser with an intracavity S-bend.
abstract: We demonstrate a hybrid silicon ring laser with an internal amplifying S-bend that couples a fraction of the counter-clockwise circulating light into the the clockwise direction. The device supported single-mode, unidirectional laser oscillation at certain bias conditions. A spatial field distribution model is derived to describe the unidirectional operation. A unidirectional clockwise laser output with a suppression ratio up to 18.6 dB over the counter-clockwise mode was achieved.
authors.forename: Wesley D
authors.initials: WD
authors.lastname: Sacher
authors.forename: Michael L
authors.initials: ML
authors.lastname: Davenport
authors.forename: Martijn J R
authors.initials: MJ
authors.lastname: Heck
authors.forename: Jared C
authors.initials: JC
authors.lastname: Mikkelsen
authors.forename: Joyce K S
authors.initials: JK
authors.lastname: Poon
authors.forename: John E
authors.initials: JE
authors.lastname: Bowers