Multi-milliwatt mid-infrared supercontinuum generation in a suspended core chalcogenide fiber

Uffe Visbech Møller, Yi Yu, Irnis Kubat, Christian Rosenberg Petersen, Xin Gai, Laurent Brilland, David Méchin, Celine Caillaud, Johann Troles, Barry Luther-Davies, Ole Bang

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Abstract

A low-loss suspended core As38Se62 fiber with core diameter of 4.5 μm and a zero-dispersion wavelength of 3.5 μm was used for mid-infrared supercontinuum generation. The dispersion of the fiber was measured from 2.9 to 4.2 μm and was in good correspondence with the calculated dispersion. An optical parametric amplifier delivering 320 fs pulses with a peak power of 14.8 kW at a repetition rate of 21 MHz was used to pump 18 cm of suspended core fiber at different wavelengths from 3.3 to 4.7 μm. By pumping at 4.4 μm with a peak power of 5.2 kW coupled to the fiber a supercontinuum spanning from 1.7 to 7.5 μm with an average output power of 15.6 mW and an average power >5.0 μm of 4.7 mW was obtained.
Original languageEnglish
JournalOptics Express
Volume23
Issue number3
Pages (from-to)3282-3291
ISSN1094-4087
DOIs
Publication statusPublished - 2015

Keywords

  • Supercontinuum generation
  • Nonlinear optics
  • Fibers
  • Nonlinear optical materials
  • Microstructured fibers

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