title: Continuous wave-pumped wavelength conversion in low-loss silicon nitride waveguides.
abstract: In this Letter we introduce a complementary metal-oxide semiconductor (CMOS)-compatible low-loss Si3N4waveguide platform for nonlinear integrated optics. The waveguide has a moderate nonlinear coefficient of 285  W/km, but the achieved propagation loss of only 0.06  dB/cm and the ability to handle high optical power facilitate an optimal waveguide length for wavelength conversion. We observe a constant quadratic dependence of the four-wave mixing (FWM) process on the continuous-wave (CW) pump when operating in the C-band, which indicates that the waveguide has negligible high-power constraints owing to nonlinear losses. We achieve a conversion efficiency of -26.1  dB and idler power generation of -19.6  dBm. With these characteristics, we present for the first time, to the best of our knowledge, CW-pumped data conversion in a non-resonant Si3N4waveguide.
authors.forename: Clemens J
authors.initials: CJ
authors.lastname: Krückel
authors.forename: Víctor
authors.initials: V
authors.lastname: Torres-Company
authors.forename: Peter A
authors.initials: PA
authors.lastname: Andrekson
authors.forename: Daryl T
authors.initials: DT
authors.lastname: Spencer
authors.forename: Jared F
authors.initials: JF
authors.lastname: Bauters
authors.forename: Martijn J R
authors.initials: MJ
authors.lastname: Heck
authors.forename: John E
authors.initials: JE
authors.lastname: Bowers