Refractive index and dispersion control of ultrafast laser inscribed waveguides in gallium lanthanum sulphide for near and mid-infrared applications

Giorgos Demetriou, Jean-Philippe Berube, Real Vallee, Younes Messaddeq, Christian Rosenberg Petersen, Deepak Jain, Ole Bang, Chris Craig, Daniel W. Hewak, Ajoy K. Kar

Research output: Contribution to journalJournal articleResearchpeer-review

555 Downloads (Pure)

Abstract

The powerful ultrafast laser inscription technique is used to fabricate optical waveguides in gallium lanthanum sulphide substrates. For the first time the refractive index profile and the dispersion of such ultrafast laser inscribed waveguides are experimentally measured. In addition the Zero Dispersion Wavelength of both the waveguides and bulk substrate is experimentally determined. The Zero Dispersion Wavelength was determined to be between 3.66 and 3.71 mu m for the waveguides and about 3.61 mu m for the bulk. This work paves the way for realizing ultrafast laser inscribed waveguide devices in gallium lanthanum sulphide glasses for near and mid-IR applications. (C) 2016 Optical Society of America
Original languageEnglish
JournalOptics Express
Volume24
Issue number6
Pages (from-to)6350-6358
ISSN1094-4087
DOIs
Publication statusPublished - 2016

Keywords

  • OPTICS
  • CHALCOGENIDE GLASS-FIBER
  • FEMTOSECOND-LASER
  • INSCRIPTION
  • WRITTEN
  • FABRICATION
  • DEPOSITION
  • DEVICE
  • SIGNAL
  • CELLS
  • FILMS

Fingerprint Dive into the research topics of 'Refractive index and dispersion control of ultrafast laser inscribed waveguides in gallium lanthanum sulphide for near and mid-infrared applications'. Together they form a unique fingerprint.

Cite this