Mid-infrared spectral broadening in an ultrafast laser inscribed gallium lanthanum sulphide waveguide

Opt Express. 2012 Jan 16;20(2):1545-51. doi: 10.1364/OE.20.001545.

Abstract

We report the successful fabrication of mid-infrared waveguides written in a gallium lanthanum sulphide (GLS) substrate via the ultrafast laser inscription technique. Single mode guiding at 2485 nm and 3850 nm is observed. Spectral broadening spanning 1500 nm (-15dB points) is demonstrated under 3850 nm excitation.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Equipment Design
  • Fiber Optic Technology / instrumentation*
  • Fiber Optic Technology / methods
  • Gallium / chemistry
  • Infrared Rays*
  • Lanthanum / chemistry
  • Lasers*
  • Optical Fibers*
  • Refractometry / methods
  • Sulfides / chemistry

Substances

  • Sulfides
  • Lanthanum
  • Gallium