Gallium lanthanum sulphide fibers for infrared transmission

TitleGallium lanthanum sulphide fibers for infrared transmission
Publication TypeJournal Article
Year of Publication2000
AuthorsYD West, T Schweizer, DJ Brady, and DW Hewak
JournalFiber and Integrated Optics
Start Page229
Pagination229 - 250
Date Published01/2000

Gallium lanthanum sulphide (GLS) glass and fiber have potential for use in both active and passive infrared applications. In this paper the optical, thermal, and other key properties, which are essential for understanding the applications and crucial in the quest for practical fibres, are discussed. Glass preparation by melt-quenching and subsequent fibre fabrication is described using both rod-in-tube and extruded preforms. Absorptive and scattering losses are explored as they could represent a fundamental limitation to successful device fabrication. Potential passive and active applications are reported and the prospects for a future generation of sulphide fiber-based devices examined.

Short TitleFiber and Integrated Optics