Ge-capped SiGe core optical fibers
Wu, Wei; Balci, Mustafa H.; Muhlberger, Korbinian; Fokine, Michael; Laurell, Fredrik; Hawkins, Thomas A.; Ballato, John; Gibson, Ursula
Journal article, Peer reviewed
Published version
Åpne
Permanent lenke
http://hdl.handle.net/11250/2636525Utgivelsesdato
2019Metadata
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- Institutt for fysikk [2653]
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Originalversjon
Optical Materials Express. 2019, 9 (11), 4301-4306. https://doi.org/10.1364/OME.9.004301Sammendrag
CO2 laser processing offers the possibility to inscribe structures within glass-clad SiGe-core fibers by altering the spatial distribution of the Si and Ge. Spatial segregation of Ge to the end of a fiber is shown via optical transmission measurements to alter the local bandgap, and the curved end of the fiber focuses the output of a multimode fiber. Scalable fabrication is demonstrated using a commercial CO2 laser engraver for processing of arrays.