Coherent Supercontinuum Generation in a Silicon-Germanium Waveguide in the Mid Infrared

Milan Sinobad (1) , Christelle Monat (1) , Barry Luther-Davies (2) , Pan Ma (2) , Stephen Madden (2) , David J. Moss (3) , Arnan Mitchell (4) , Regis Orobtchouk (1) , Alberto Della Torre (1) , Salim Boutami (5) , Jean-Michel Hartmann (5) , Jean-Marc Fedeli (5) , Christian Grillet (1)

1 INL - Photonique - INL - Nanophotonique
2 ANU - Australian National University
3 CUDOS ARC Centre of Excellence, School of Physics
4 RMIT University - Royal Melbourne Institute of Technology University
5 CEA-LETI - Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information

We report high brightness coherent supercontinuum extending from 2.8 to 5.0μm in an air cladded Si0.6Ge0.4/Si waveguide with all-normal dispersion. Supercontinuum is generated by pumping with ~200fs pulses at 3.8μm. Dispersion engineering and low propagation loss (~0.5dB/cm at 3.8μm) allowed us to achieve more than 5mW useful on-chip average power.

Domaines: Optique / photonique; Micro et nanotechnologies/Microélectronique

Milan Sinobad, Christelle Monat, Barry Luther-Davies, Pan Ma, Stephen Madden, et al.. Coherent Supercontinuum Generation in a Silicon-Germanium Waveguide in the Mid Infrared. Mid-Infrared Coherent Sources, Mar 2018, Strasbourg, France. pp.MT2C.8, ⟨10.1364/MICS.2018.MT2C.8⟩. ⟨hal-02006487⟩