Bright octave-span mid-IR supercontinuum generation in silicon germanium waveguide

Alberto Della Torre*, Milan Sinobad, Barry Luther-Davies, Pan Ma, Stephen Madden, Sukanta Debbarma, Khu Vu, David J. Moss, Arnan Mitchell, Jean Michel Hartmann, Jean Marc Fedeli, Christelle Monat, Christian Grillet

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

We present silicon-germanium on silicon waveguides as a suitable platform for on-chip supercontinuum generation in the mid-infrared. We report low propagation loss (<0.4dB/cm) in the 3.5-5 μm range, leading to an octave spanning supercontinuum extending up to 8.5 μm with a high average power of more than 10 mW on-chip. Furthermore, we present the addition of a chalcogenide cladding layer as a simple post-processing technique to fine tune the waveguide dispersion which, in turn, governs the properties of the generated supercontinuum.

Original languageEnglish
Title of host publicationIntegrated Optics
Subtitle of host publicationDevices, Materials, and Technologies XXIII
EditorsSonia M. Garcia-Blanco, Pavel Cheben
PublisherSPIE
ISBN (Electronic)9781510624849
DOIs
Publication statusPublished - 2019
Externally publishedYes
EventIntegrated Optics: Devices, Materials, and Technologies XXIII 2019 - San Francisco, United States
Duration: 4 Feb 20197 Feb 2019

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10921
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceIntegrated Optics: Devices, Materials, and Technologies XXIII 2019
Country/TerritoryUnited States
CitySan Francisco
Period4/02/197/02/19

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