Er-doped Tellurite glasses for planar waveguide power amplifier with extended gain bandwidth
Er-doped Tellurite glasses for planar waveguide power amplifier with extended gain bandwidth
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 1x1020/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.
Mackenzie, J.I.
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Murugan, G.S.
a867686e-0535-46cc-ad85-c2342086b25b
Suzuki, T.
836441d2-7ba2-4b94-854f-c23f3e10662d
Ohishi, Y.
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Yu, A.W.
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Abshire, J.B.
6b2add7e-62ea-4820-99bb-3ba9a2409929
Mackenzie, J.I.
1d82c826-fdbf-425b-ac04-be43ccf12008
Murugan, G.S.
a867686e-0535-46cc-ad85-c2342086b25b
Suzuki, T.
836441d2-7ba2-4b94-854f-c23f3e10662d
Ohishi, Y.
581e6a89-1e2d-4bb7-9996-8f609e27e195
Yu, A.W.
1bf32468-294f-45dd-84b5-21e3d5fe365a
Abshire, J.B.
6b2add7e-62ea-4820-99bb-3ba9a2409929
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.
Photonics West 2012, , San Francisco, 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 1x1020/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:
Photonics West 2012, , San Francisco, 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
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Date deposited: 15 Mar 2012 09:12
Last modified: 15 Mar 2024 03:23
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Contributors
Author:
T. Suzuki
Author:
Y. Ohishi
Author:
A.W. Yu
Author:
J.B. Abshire
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