title: Linear photonic frequency discriminator on As₂S₃-ring-on-Ti:LiNbO₃ hybrid platform.
abstract: We report a photonic frequency discriminator built on the vertically integrated As₂S₃-ring-on-Ti:LiNbO₃ hybrid platform. The discriminator consists of a Mach Zehnder interferometer (MZI) formed by the optical path length difference (OPD) between polarization modes of Ti-diffused waveguide on LiNbO₃ substrate and a vertically integrated As₂S₃ race-track ring resonator on top of the substrate. The figures of merit of the device, enhancement of the signal-to-3rd order intermodulation distortion (IMD3) power ratio and corresponding 3rd order intercept point (IP3) over a traditional MZI, are demonstrated through device characterization.
authors.forename: Jaehyun
authors.initials: J
authors.lastname: Kim
authors.forename: Won Ju
authors.initials: WJ
authors.lastname: Sung
authors.forename: Ohannes
authors.initials: O
authors.lastname: Eknoyan
authors.forename: Christi K
authors.initials: CK
authors.lastname: Madsen