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Proceedings Paper

Mid-infrared emission from Dy3+ doped tellurite bulk glass and waveguides
Author(s): Billy D. O. Richards; Toney Teddy-Fernandez; Animesh Jha; David Binks
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Paper Abstract

We present the fabrication and characterisation of Dy3+-doped tellurite glasses and waveguides for applications in the mid-IR. The low phonon energy and large rare-earth ion solubility of tellurite glasses, as well as having infrared transmission ranges up to <5 μm, make them promising candidates for new mid-IR solid-state laser host materials. This paper presents recent achievements in the fabrication of tellurite glasses, glass characterisation and rare-earth ion spectroscopy which is compared to other glass hosts relevant to the mid-IR such as fluoride glasses. When excited with an 808 nm laser diode source, Dy3+ doped tellurite bulk glasses exhibited very broad fluorescence from the 6H13/2 - 6H15/2 transition which extends from 3 μm to 3.6 μm FWHM compared to 2.9 μm to 3.1 μm in Dy3+ doped ZBLAN glass. This broad and red-shifted fluorescence band in tellurite glass may find use in LIDAR and sensing applications as it coincides with an atmospheric transmission band, compared to the ~3 μm emission of Dy3+ doped ZBLAN lasers which is absorbed by atmospheric water.

Paper Details

Date Published: 1 November 2012
PDF: 6 pages
Proc. SPIE 8534, Remote Sensing of Clouds and the Atmosphere XVII; and Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing VIII, 853411 (1 November 2012); doi: 10.1117/12.981384
Show Author Affiliations
Billy D. O. Richards, Univ. of Leeds (United Kingdom)
Toney Teddy-Fernandez, Univ. of Leeds (United Kingdom)
Animesh Jha, Univ. of Leeds (United Kingdom)
David Binks, The Univ. of Manchester (United Kingdom)


Published in SPIE Proceedings Vol. 8534:
Remote Sensing of Clouds and the Atmosphere XVII; and Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing VIII
Upendra N. Singh; Evgueni I. Kassianov; Gelsomina Pappalardo; Adolfo Comeron; Richard H. Picard; Klaus Schäfer, Editor(s)

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