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Er-doped Tellurite glasses for planar waveguide power amplifier with extended gain bandwidth

Mackenzie, J.I., Murugan, G.S., Suzuki, T., Ohishi, Y., Yu, A.W. and Abshire, J.B., (2012) Er-doped Tellurite glasses for planar waveguide power amplifier with extended gain bandwidth Clarkson, W. Andrew and Shori, Ramesh K. (eds.) At SPIE 8235 : Photonics West 2012, United States. 21 - 26 Jan 2012. 8 pp. (doi:10.1117/12.908003).

Record type: Conference or Workshop Item (Paper)

Abstract

Tellurite glass compositions doped with erbium and erbium/ytterbium optimised to support extended gain bandwidth with significant amplification have been fabricated, and their thermal, optical absorption, excitation and luminescence properties investigated. Each rare-earth dopant concentration was set at 1x10^20/cm3. Broad emission cross-section bandwidths up to 50nm FWHM were observed, with fluorescence lifetimes of ~3ms. Collinear pump probe measurements on ~4mm thick bulk samples revealed peak gains of up to 2.1dB/cm at a wavelength of 1535nm in the co-doped material, with an incident pump intensity of only Iinc~8kW/cm2 at a wavelength of 974nm. At equivalent absorbed pump powers between co-doped and single doped materials the relative gain was 1.25dB/cm (Iinc~4kW/cm2) and 0.9dB/cm (Iinc~8kW/cm2) respectively, demonstrating efficient energy transfer from the ytterbium to erbium ions. Excited state absorption at longer wavelengths was observed and characterised and its implication on realising sufficient gain in the wavelength band of interest is discussed

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e-pub ahead of print date: 2012
Venue - Dates: SPIE 8235 : Photonics West 2012, United States, 2012-01-21 - 2012-01-26
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 335860
URI: http://eprints.soton.ac.uk/id/eprint/335860
PURE UUID: 12b90f34-6cf8-4da2-a56f-06c75f1bbc4c
ORCID for J.I. Mackenzie: ORCID iD orcid.org/0000-0002-3355-6051
ORCID for G.S. Murugan: ORCID iD orcid.org/0000-0002-2733-3273

Catalogue record

Date deposited: 15 Mar 2012 09:12
Last modified: 18 Jul 2017 06:10

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Contributors

Author: J.I. Mackenzie ORCID iD
Author: G.S. Murugan ORCID iD
Author: T. Suzuki
Author: Y. Ohishi
Author: A.W. Yu
Author: J.B. Abshire
Editor: Ramesh K. Shori

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