6533b823fe1ef96bd127e168
RESEARCH PRODUCT
Dispersion-optimized multicladding silicon nitride waveguides for nonlinear frequency generation from ultraviolet to mid-infrared
J.m. Chavez BoggioDomenico GiannoneLars ZimmermannMarkus RothTobias HanssonStefan WabnitzT. FrembergD. BodenmüllerEnrique SilvestreDaniele ModottoA. Ortega Monuxsubject
Materials scienceIntegrated optics nonlinear optics dispersionPhysics::Optics02 engineering and technologymedicine.disease_cause01 natural scienceslaw.invention010309 opticschemistry.chemical_compoundsymbols.namesakeOpticslaw0103 physical sciencesDispersion (optics)medicinebusiness.industrynonlinear opticsIntegrated opticsStatistical and Nonlinear PhysicsÒptica021001 nanoscience & nanotechnologyAtomic and Molecular Physics and OpticsWavelengthSilicon nitridechemistrysymbolsOptoelectronicsIntegrated optics; nonlinear optics; dispersiondispersion0210 nano-technologybusinessWaveguideRefractive indexUltravioletRaman scatteringPhotonic-crystal fiberdescription
Nonlinear frequency conversion spanning from the ultraviolet to the mid-infrared (beyond 2.4 μm) is experimentally demonstrated in multicladding silicon nitride (𝑆𝑖𝑋𝑁𝑌) waveguides. By adjusting the waveguide cross-section the chromatic dispersion is flattened, which enhances both the efficiency and the bandwidth of the nonlinear conversion. How accurately the dispersion is tailored is assessed through chromatic dispersion measurements and an experiment/simulation comparison of the dispersive waves' wavelength locations. Undesirable fluctuations of both the refractive index and the dimensions of the waveguide during the fabrication process result in a dispersion unpredictability of at least 20 ps/nm/km. Finally, manipulation of the effective refractive index allows for multiple third harmonic generated tones spanning from 381 to 715 nm.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-10-31 | Journal of the Optical Society of America B |