title: Integrated optical frequency shifter in silicon-organic hybrid (SOH) technology.
abstract: We demonstrate for the first time a waveguide-based frequency shifter on the silicon photonic platform using single-sideband modulation. The device is based on silicon-organic hybrid (SOH) electro-optic modulators, which combine conventional silicon-on-insulator waveguides with highly efficient electro-optic cladding materials. Using small-signal modulation, we demonstrate frequency shifts of up to 10 GHz. We further show large-signal modulation with optimized waveforms, enabling a conversion efficiency of -5.8 dB while suppressing spurious side-modes by more than 23 dB. In contrast to conventional acousto-optic frequency shifters, our devices lend themselves to large-scale integration on silicon substrates, while enabling frequency shifts that are several orders of magnitude larger than those demonstrated with all-silicon serrodyne devices.
authors.forename: M
authors.initials: M
authors.lastname: Lauermann
authors.forename: C
authors.initials: C
authors.lastname: Weimann
authors.forename: A
authors.initials: A
authors.lastname: Knopf
authors.forename: W
authors.initials: W
authors.lastname: Heni
authors.forename: R
authors.initials: R
authors.lastname: Palmer
authors.forename: S
authors.initials: S
authors.lastname: Koeber
authors.forename: D L
authors.initials: DL
authors.lastname: Elder
authors.forename: W
authors.initials: W
authors.lastname: Bogaerts
authors.forename: J
authors.initials: J
authors.lastname: Leuthold
authors.forename: L R
authors.initials: LR
authors.lastname: Dalton
authors.forename: C
authors.initials: C
authors.lastname: Rembe
authors.forename: W
authors.initials: W
authors.lastname: Freude
authors.forename: C
authors.initials: C
authors.lastname: Koos