title: Widely tunable microwave phase shifter based on silicon-on-insulator dual-microring resonator.
abstract: We propose and demonstrate tunable microwave phase shifters based on electrically tunable silicon-on-insulator microring resonators. The phase-shifting range and the RF-power variation are analyzed. A maximum phase-shifting range of 0-600 degrees is achieved by utilizing a dual-microring resonator. A quasi-linear phase shift of 360 degrees with RF-power variation lower than 2dB and a continuous 270 degrees phase shift without RF-power variation at a microwave frequency of 40GHz are also demonstrated.
authors.affiliation: DTU Fotonik, Department of Photonics Engineering, Technical University of Denmark,Build. 343, DK-2800 Kongens Lyngby, Denmark. mipu@fotonik.dtu.dk
authors.forename: Minhao
authors.initials: M
authors.lastname: Pu
authors.forename: Liu
authors.initials: L
authors.lastname: Liu
authors.forename: Weiqi
authors.initials: W
authors.lastname: Xue
authors.forename: Yunhong
authors.initials: Y
authors.lastname: Ding
authors.forename: Haiyan
authors.initials: H
authors.lastname: Ou
authors.forename: Kresten
authors.initials: K
authors.lastname: Yvind
authors.forename: Jørn M
authors.initials: JM
authors.lastname: Hvam
mesh_terms: D004553:Electric Conductivity; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008872:Microwaves; D055096:Optical Devices; D013685:Telecommunications / Q000295:instrumentation*; D014159:Transducers