title: Ce:YIG/Silicon-on-Insulator waveguide optical isolator realized by adhesive bonding.
abstract: A waveguide optical isolator realized by adhesive bonding of a garnet die, containing a Ce:YIG magneto-optic layer, on a silicon-on-insulator waveguide circuit is demonstrated. The die was bonded on top of an asymmetric Mach-Zehnder interferometer using a 100nm thick DVS-BCB adhesive bonding layer. A static magnetic field applied perpendicular to the light propagation direction results in a non-reciprocal phase shift for the fundamental quasi-TM mode in the hybrid waveguide geometry. A maximum optical isolation of 25 dB is obtained.
authors.affiliation: Department of Information Technology (INTEC), Ghent University, Gent, Belgium. samir.ghosh@intec.ugent.be
authors.forename: S
authors.initials: S
authors.lastname: Ghosh
authors.forename: S
authors.initials: S
authors.lastname: Keyvavinia
authors.forename: W
authors.initials: W
authors.lastname: Van Roy
authors.forename: T
authors.initials: T
authors.lastname: Mizumoto
authors.forename: G
authors.initials: G
authors.lastname: Roelkens
authors.forename: R
authors.initials: R
authors.lastname: Baets
mesh_terms: D000269:Adhesives; D001895:Boron; D002563:Cerium / Q000737:chemistry*; D004867:Equipment Design; D007368:Interferometry / Q000295:instrumentation*; D007501:Iron; D054023:Lasers, Semiconductor; D059346:Magnets; D008962:Models, Theoretical; D009354:Neodymium; D055096:Optical Devices; D012825:Silicon / Q000737:chemistry*; D013685:Telecommunications / Q000295:instrumentation
chemical_list: D000269:Adhesives; D009354:Neodymium; D002563:Cerium; D007501:Iron; D001895:Boron; D012825:Silicon