Ge-capped SiGe core optical fibers

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 used to alter the local bandgap, and the curved...

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Published in:Optical materials express 2019-11, Vol.9 (11), p.4301
Main Authors: Wu, Wei, Balci, Mustafa H., Mühlberger, Korbinian, Fokine, Michael, Laurell, Fredrik, Hawkins, Thomas, Ballato, John, Gibson, Ursula J.
Format: Article
Language:English
Subjects:
Carbon dioxide
Carbon dioxide lasers
Engraving
Germanium
Laser processing
Optical fibers
Silicon germanides
Spatial distribution
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cited_by cdi_FETCH-LOGICAL-c339t-bceb136e46c8d55797c37a637dfa401fd6d0932aac8c04d3d46d5fff9158d3983
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container_issue 11
container_start_page 4301
container_title Optical materials express
container_volume 9
creator Wu, Wei
Balci, Mustafa H.
Mühlberger, Korbinian
Fokine, Michael
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Hawkins, Thomas
Ballato, John
Gibson, Ursula J.
description 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 used 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.
doi_str_mv 10.1364/OME.9.004301
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subjects Carbon dioxide
Carbon dioxide lasers
Engraving
Germanium
Laser processing
Optical fibers
Silicon germanides
Spatial distribution
title Ge-capped SiGe core optical fibers
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