Dispersion-optimized multicladding silicon nitride waveguides for nonlinear frequency generation from ultraviolet to mid-infrared

Year: 2016

Authors: Chávez Boggio J.M., Ortega Moñux A., Modotto D., Fremberg T., Bodenmüller D., Giannone D., Roth M.M., Hansson T., Wabnitz S., Silvestre E., Zimmermann L.

Autors Affiliation: InnoFSPEC-VKS, Leibniz-Institut für Astrophysik Potsdam (AIP), An der Sternwarte 16, Potsdam, D-14482, Germany; Departamento Ingeniería de Comunicaciones, ETSI Telecomunicación, Universidad de Málaga, Málaga, 29010, Spain; Dipartimento di Ingegneria dell\’Informazione, Università di Brescia, via Branze 38, Brescia, 25123, Italy; INRS-EMT, 1650 Blvd. Lionel-Boulet, Varennes, QC J3X 1S2, Canada; Universitat de València, Burjassot (València), E-46100, Spain; IHP, Im Technologiepark 25, Frankfurt (Oder), 15236, Germany

Abstract: 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.


Volume: 33 (11)      Pages from: 2402  to: 2413

More Information: Bundesministerium für Bildung und Forschung, BMBF. Bundesministerium für Bildung und Forschung, BMBF, 03Z2AN11. Bundesministerium für Bildung und Forschung, BMBF, 03Z2AN12. – Bundesministerium f?r Bildung und Forschung (BMBF) (03Z2AN11, 03Z2AN12).
KeyWords: Chromatic dispersion; Infrared devices; Nitrides; Silicon nitride; Waveguides, Chromatic dispersion measurement; Effective refractive index; Fabrication process; Nonlinear conversions; Nonlinear frequency; Nonlinear frequency conversion; Silicon nitride waveguides; Waveguide cross section, Refractive index
DOI: 10.1364/JOSAB.33.002402

Citations: 10
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