Fernandez, TT, Hernandez, M, Sotillo, B et al. (6 more authors) (2014) Role of ion migrations in ultrafast laser written tellurite glass waveguides. Optics Express, 22 (12). pp. 15298-15304. ISSN 1094-4087
Abstract
We report on a strong cross migration of ions in a Tellurite (Te) based glass to form waveguides using a high repetition rate femtosecond laser. The tellurite glass matrix was modified using oxides of P, Na and Zn elements of which Te and Na ions play an important role to form waveguides upon laser irradiation. Tellurium was observed to migrate causing a positive index change zone whereas sodium cross migrates to the tellurium deficient zone forming a relatively low index change region. We have used micro-Raman analysis to scan across the waveguide cross-section to understand the state of the glass network and the relation between ion migration and glass densification for waveguiding. We have found that there is an increase in TeO3 units and reduction of TeO4 units in the Te rich zones enabling densification. This work will help guide the new commercial glass manufacturing industries that aim at producing mid-infrared transparent glasses like tellurite, tellurides and chalcogenides for the production of waveguide based devices.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 19 Oct 2015 15:16 |
Last Modified: | 28 Jun 2019 13:33 |
Published Version: | http://dx.doi.org/10.1364/OE.22.015298 |
Status: | Published |
Publisher: | Optical Society of America |
Identification Number: | 10.1364/OE.22.015298 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:85882 |