Spectroscopy of thulium-doped tantalum pentoxide waveguides on silicon
Spectroscopy of thulium-doped tantalum pentoxide waveguides on silicon
The spectroscopic properties and laser operation of thulium-doped tantalum pentoxide (Tm:Ta2O5) waveguides are reported in this paper. Fluorescence ranging from 1600 nm to 2200 nm, corresponding to the 3F4 → 3H6 transition was observed from 3 wt% Tm:Ta2O5 waveguides pumped at a wavelength of 795 nm. Measurements of excited-state lifetime, the emission and absorption spectra, with subsequent calculation of the cross-sections for the deposited films, reveal its potential as a gain medium. Laser operation at a wavelength of 1865 nm was obtained with feedback from the polished end faces alone, demonstrating gain of >9 dB/cm.
Spectroscopy, Photonics, Silicon photonics, LASER, Materials, waveguide, Thulium
2201-2211
Tong, Amy Sen Kay
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Mitchell, Colin
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Aghajani, Armen
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Sessions, Neil
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Murugan, Ganapathy Senthil
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Mackenzie, Jacob
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Wilkinson, James S
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18 August 2020
Tong, Amy Sen Kay
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Mitchell, Colin
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Aghajani, Armen
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Sessions, Neil
ee737092-56b4-403e-a2f9-764e07e42625
Murugan, Ganapathy Senthil
a867686e-0535-46cc-ad85-c2342086b25b
Mackenzie, Jacob
1d82c826-fdbf-425b-ac04-be43ccf12008
Wilkinson, James S
73483cf3-d9f2-4688-9b09-1c84257884ca
Tong, Amy Sen Kay, Mitchell, Colin, Aghajani, Armen, Sessions, Neil, Murugan, Ganapathy Senthil, Mackenzie, Jacob and Wilkinson, James S
(2020)
Spectroscopy of thulium-doped tantalum pentoxide waveguides on silicon.
Optical Materials Express, 10 (9), .
(doi:10.1364/OME.397011).
Abstract
The spectroscopic properties and laser operation of thulium-doped tantalum pentoxide (Tm:Ta2O5) waveguides are reported in this paper. Fluorescence ranging from 1600 nm to 2200 nm, corresponding to the 3F4 → 3H6 transition was observed from 3 wt% Tm:Ta2O5 waveguides pumped at a wavelength of 795 nm. Measurements of excited-state lifetime, the emission and absorption spectra, with subsequent calculation of the cross-sections for the deposited films, reveal its potential as a gain medium. Laser operation at a wavelength of 1865 nm was obtained with feedback from the polished end faces alone, demonstrating gain of >9 dB/cm.
Text
Spectroscopy_of_TmTa2O5_Waveguides - Final submission OME
- Accepted Manuscript
More information
Accepted/In Press date: 31 July 2020
Published date: 18 August 2020
Additional Information:
ASK Tong and CJ Mitchell - jointly 'first author', contributing equally to this work
Keywords:
Spectroscopy, Photonics, Silicon photonics, LASER, Materials, waveguide, Thulium
Identifiers
Local EPrints ID: 443216
URI: http://eprints.soton.ac.uk/id/eprint/443216
ISSN: 2159-3930
PURE UUID: 577cd156-cab7-4853-9450-6546ad688a02
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Date deposited: 17 Aug 2020 16:30
Last modified: 17 Mar 2024 03:32
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Contributors
Author:
Amy Sen Kay Tong
Author:
Armen Aghajani
Author:
Neil Sessions
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