Mid-infrared supercontinuum generation in silicon-germanium all-normal dispersion waveguides | Zendy

Milan Sinobad | Zendy; Alberto Della Torre | Zendy; Rémi Armand | Zendy; Barry LutherDavies | Zendy; Pan Ma | Zendy; Steve Madden | Zendy; Arnan Mitchell | Zendy; David Moss | Zendy; Jean-Michel Hartmann | Zendy; Jean-Marc Fédéli | Zendy; Christelle Monat | Zendy; Christian Grillet | Zendy

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Mid-infrared supercontinuum generation in silicon-germanium all-normal dispersion waveguides

Author(s) -

Milan Sinobad,

Alberto Della Torre,

Rémi Armand,

Barry LutherDavies,

Pan Ma,

Steve Madden,

Arnan Mitchell,

David Moss,

Jean-Michel Hartmann,

Jean-Marc Fédéli,

Christelle Monat,

Christian Grillet

Publication year - 2020

Publication title -

optics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.524

H-Index - 272

eISSN - 1071-2763

pISSN - 0146-9592

DOI - 10.1364/ol.402159

Subject(s) - supercontinuum , germanium , optics , materials science , infrared , dispersion (optics) , silicon , optoelectronics , nonlinear optics , optical fiber , photonic crystal fiber , physics , laser

We demonstrate coherent supercontinuum generation spanning over an octave from a silicon germanium-on-silicon waveguide using ∼200 f s pulses at a wavelength of 4 µm. The waveguide is engineered to provide low all-normal dispersion in the TM polarization. We validate the coherence of the generated supercontinuum via simulations, with a high degree of coherence across the entire spectrum. Such a generated supercontinuum could lend itself to pulse compression down to 22 fs.

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