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Spectroscopy of thulium-doped tantalum pentoxide waveguides on silicon

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 3F43H6 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
2159-3930
2201-2211
Tong, Amy Sen Kay
cc6ac738-a365-4ea3-a979-67dd4fb7392a
Mitchell, Colin
0e48c936-a405-434d-818a-d83e382aa826
Aghajani, Armen
0c9b6c8f-b08c-4e47-913c-90f562bd38b5
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
cc6ac738-a365-4ea3-a979-67dd4fb7392a
Mitchell, Colin
0e48c936-a405-434d-818a-d83e382aa826
Aghajani, Armen
0c9b6c8f-b08c-4e47-913c-90f562bd38b5
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), 2201-2211. (doi:10.1364/OME.397011).

Record type: Article

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 3F43H6 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
Available under License Creative Commons Attribution.
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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
ORCID for Amy Sen Kay Tong: ORCID iD orcid.org/0000-0002-2026-2062
ORCID for Colin Mitchell: ORCID iD orcid.org/0000-0001-9773-8842
ORCID for Ganapathy Senthil Murugan: ORCID iD orcid.org/0000-0002-2733-3273
ORCID for Jacob Mackenzie: ORCID iD orcid.org/0000-0002-3355-6051
ORCID for James S Wilkinson: ORCID iD orcid.org/0000-0003-4712-1697

Catalogue record

Date deposited: 17 Aug 2020 16:30
Last modified: 10 Mar 2021 02:43

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