title: Octave-spanning coherent supercontinuum generation in a silicon nitride waveguide.
abstract: We demonstrate the generation of a supercontinuum spanning more than 1.4 octaves in a silicon nitride waveguide using sub-100-fs pulses at 1 μm generated by either a 53-MHz, diode-pumped ytterbium (Yb) fiber laser or a 1-GHz, Yb:CaAlGdO(4) (Yb:CALGO) laser. Our numerical simulations show that the broadband supercontinuum is fully coherent, and a spectral interference measurement is used to verify that the supercontinuum generated with the Yb:CALGO laser possesses a high degree of coherence over the majority of its spectral bandwidth. This coherent spectrum may be utilized for optical coherence tomography, spectroscopy, and frequency metrology.
authors.forename: Adrea R
authors.initials: AR
authors.lastname: Johnson
authors.forename: Aline S
authors.initials: AS
authors.lastname: Mayer
authors.forename: Alexander
authors.initials: A
authors.lastname: Klenner
authors.forename: Kevin
authors.initials: K
authors.lastname: Luke
authors.forename: Erin S
authors.initials: ES
authors.lastname: Lamb
authors.forename: Michael R E
authors.initials: MR
authors.lastname: Lamont
authors.forename: Chaitanya
authors.initials: C
authors.lastname: Joshi
authors.forename: Yoshitomo
authors.initials: Y
authors.lastname: Okawachi
authors.forename: Frank W
authors.initials: FW
authors.lastname: Wise
authors.forename: Michal
authors.initials: M
authors.lastname: Lipson
authors.forename: Ursula
authors.initials: U
authors.lastname: Keller
authors.forename: Alexander L
authors.initials: AL
authors.lastname: Gaeta
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D053844:Lasers, Solid-State; D008027:Light; D012031:Refractometry / Q000295:instrumentation*; D012542:Scattering, Radiation; D017655:Silicon Compounds / Q000737:chemistry*; D020349:Surface Plasmon Resonance / Q000295:instrumentation*
chemical_list: D017655:Silicon Compounds; C032734:silicon nitride