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GLS and GLSSe ultrafast laser inscribed waveguides for mid-IR supercontinuum generation

GLS and GLSSe ultrafast laser inscribed waveguides for mid-IR supercontinuum generation
GLS and GLSSe ultrafast laser inscribed waveguides for mid-IR supercontinuum generation
Using the ultrafast laser inscription technique, buried channel waveguides have been fabricated in gallium lanthanum sulfide and gallium lanthanum sulfide selenide glasses to demonstrate the suitability of the materials for supercontinuum generation in the mid-IR. Supercontinuum generation was performed using 100 femtosecond pump pulses with micro-Joule pulse energies and a center wavelength of 4.6 µm, which is in the anomalous dispersion regime for these waveguides. Under such pump conditions, supercontinuum was obtained covering a 25-dB-bandwidth of up to 6.1 um with a long-wavelength edge of 8 µm. To our knowledge, this represents the broadest and the longest-wavelength IR supercontinuum generated from an ultrafast laser inscribed waveguide to date.
643-651
Mackenzie, Mark
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Morris, James
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Petersen, Christian
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Ravagli, Andrea
36bc59df-8134-42d1-9871-bcf7bab6539a
Craig, Christopher
2328b42b-552e-4a82-941d-45449e952f10
Hewak, Daniel
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Bookey, Henry
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Bang, Ole
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Kar, Ajoy
fc7a1bc8-8423-42ea-b751-b24ec618e2c8
Mackenzie, Mark
e0908b6f-ea7c-4594-837e-70fe855ad1a0
Morris, James
93b3fa61-8cb0-4929-a36f-8d9f32251291
Petersen, Christian
11d5ca24-445c-466f-8a6a-2ffdda6766f4
Ravagli, Andrea
36bc59df-8134-42d1-9871-bcf7bab6539a
Craig, Christopher
2328b42b-552e-4a82-941d-45449e952f10
Hewak, Daniel
87c80070-c101-4f7a-914f-4cc3131e3db0
Bookey, Henry
5e3b45a2-b1ec-41c7-baf0-aa709a823a57
Bang, Ole
014475b9-9fc5-4f9e-b63c-4cfc306772d3
Kar, Ajoy
fc7a1bc8-8423-42ea-b751-b24ec618e2c8

Mackenzie, Mark, Morris, James, Petersen, Christian, Ravagli, Andrea, Craig, Christopher, Hewak, Daniel, Bookey, Henry, Bang, Ole and Kar, Ajoy (2019) GLS and GLSSe ultrafast laser inscribed waveguides for mid-IR supercontinuum generation. Optical Materials Express, 9 (2), 643-651. (doi:10.1364/OME.9.000643).

Record type: Article

Abstract

Using the ultrafast laser inscription technique, buried channel waveguides have been fabricated in gallium lanthanum sulfide and gallium lanthanum sulfide selenide glasses to demonstrate the suitability of the materials for supercontinuum generation in the mid-IR. Supercontinuum generation was performed using 100 femtosecond pump pulses with micro-Joule pulse energies and a center wavelength of 4.6 µm, which is in the anomalous dispersion regime for these waveguides. Under such pump conditions, supercontinuum was obtained covering a 25-dB-bandwidth of up to 6.1 um with a long-wavelength edge of 8 µm. To our knowledge, this represents the broadest and the longest-wavelength IR supercontinuum generated from an ultrafast laser inscribed waveguide to date.

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ome-9-2-643 - Version of Record
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Accepted/In Press date: 27 December 2018
e-pub ahead of print date: 17 January 2019
Published date: 1 February 2019

Identifiers

Local EPrints ID: 427706
URI: https://eprints.soton.ac.uk/id/eprint/427706
PURE UUID: 4a93be69-d712-4c6f-be05-272027c74eb3
ORCID for Christopher Craig: ORCID iD orcid.org/0000-0001-6919-4294
ORCID for Daniel Hewak: ORCID iD orcid.org/0000-0002-2093-5773

Catalogue record

Date deposited: 25 Jan 2019 17:30
Last modified: 24 May 2019 00:32

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Contributors

Author: Mark Mackenzie
Author: James Morris
Author: Christian Petersen
Author: Andrea Ravagli
Author: Christopher Craig ORCID iD
Author: Daniel Hewak ORCID iD
Author: Henry Bookey
Author: Ole Bang
Author: Ajoy Kar

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