title: Supercontinuum generation in a high index doped silica glass spiral waveguide.
abstract: We demonstrate supercontinuum (SC) generation at both 1550 nm and 1288 nm in a compact (< 5mm(2)) 45 cm spiral waveguide composed of CMOS-compatible doped high-index glass. While both wavelengths have weak dispersion and are near zero dispersion points, they present different symmetries. At 1550 nm, the normal dispersion regime takes place at longer wavelengths, whereas at 1290 nm it is at shorter wavelengths, and we observe features in the SC spectra that clearly reflect this. In particular, the spectrum at 1550 nm is more than 300 nm wide (limited by detection) and is well reproduced by simulations based on the measured dispersion. This work represents a practical on-chip broadband wavelength source with potential use in many important applications.
authors.affiliation: INRS-EMT, 1650 Boulevard Lionel Boulet, Québec, Canada.
authors.forename: David
authors.initials: D
authors.lastname: Duchesne
authors.forename: Marco
authors.initials: M
authors.lastname: Peccianti
authors.forename: Michael R E
authors.initials: MR
authors.lastname: Lamont
authors.forename: Marcello
authors.initials: M
authors.lastname: Ferrera
authors.forename: Luca
authors.initials: L
authors.lastname: Razzari
authors.forename: Francois
authors.initials: F
authors.lastname: Légaré
authors.forename: Roberto
authors.initials: R
authors.lastname: Morandotti
authors.forename: Sai
authors.initials: S
authors.lastname: Chu
authors.forename: Brent E
authors.initials: BE
authors.lastname: Little
authors.forename: David J
authors.initials: DJ
authors.lastname: Moss
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D005898:Glass / Q000737:chemistry*; D008027:Light; D008422:Materials Testing; D055096:Optical Devices; D012031:Refractometry / Q000295:instrumentation*; D012542:Scattering, Radiation; D012822:Silicon Dioxide / Q000737:chemistry*; D014159:Transducers
chemical_list: D012822:Silicon Dioxide