Temperature-tunable UV generation using an Alexandrite laser and PPLN waveguides
Temperature-tunable UV generation using an Alexandrite laser and PPLN waveguides
We present a simple and novel technique for achieving ultra-violet (UV) wavelength-tunable laser operation in the continuous-wave regime. Wavelength tunable operation in the near infrared is obtained from a compact two-mirror Alexandrite laser cavity by temperature tuning of the laser crystal. Second-harmonic-generation to the UV is then achieved at 376-379 nm and 384-386 nm by temperature tuning of a periodically-poled lithium-niobate (PPLN) waveguide. A maximum UV power of 1.3 mW from 185 mW infra-red pump throughput is obtained from a third-order PPLN Λ = 6.1 µm grating. These results show promising potential for simple and wavelength tunable access to wavelengths at 360-400 nm.
22757-22765
Tawy, Goronwy
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Palomar Davidson, Noelia
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Churchill, Glenn
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Damzen, Michael J.
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Smith, Peter G.R.
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Gates, James C.
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Gawith, Corin
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3 July 2023
Tawy, Goronwy
be5a54aa-e151-460f-8f1f-3a99ae4fe540
Palomar Davidson, Noelia
baf5bd93-fafe-4859-9cfd-f43e8b5a42e7
Churchill, Glenn
5933a331-fba3-444b-8352-273112c3d6a6
Damzen, Michael J.
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Smith, Peter G.R.
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Gates, James C.
b71e31a1-8caa-477e-8556-b64f6cae0dc2
Gawith, Corin
926665c0-84c7-4a1d-ae19-ee6d7d14c43e
Tawy, Goronwy, Palomar Davidson, Noelia, Churchill, Glenn, Damzen, Michael J., Smith, Peter G.R., Gates, James C. and Gawith, Corin
(2023)
Temperature-tunable UV generation using an Alexandrite laser and PPLN waveguides.
Optics Express, 31 (14), .
(doi:10.1364/OE.495219).
Abstract
We present a simple and novel technique for achieving ultra-violet (UV) wavelength-tunable laser operation in the continuous-wave regime. Wavelength tunable operation in the near infrared is obtained from a compact two-mirror Alexandrite laser cavity by temperature tuning of the laser crystal. Second-harmonic-generation to the UV is then achieved at 376-379 nm and 384-386 nm by temperature tuning of a periodically-poled lithium-niobate (PPLN) waveguide. A maximum UV power of 1.3 mW from 185 mW infra-red pump throughput is obtained from a third-order PPLN Λ = 6.1 µm grating. These results show promising potential for simple and wavelength tunable access to wavelengths at 360-400 nm.
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oe-31-14-22757
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Accepted/In Press date: 16 June 2023
e-pub ahead of print date: June 2023
Published date: 3 July 2023
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Journal © 2023.
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Local EPrints ID: 478449
URI: http://eprints.soton.ac.uk/id/eprint/478449
ISSN: 1094-4087
PURE UUID: 26472e2e-47b2-4fe0-8a00-8091b893b0c4
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Date deposited: 03 Jul 2023 16:43
Last modified: 18 Mar 2024 02:52
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Author:
Noelia Palomar Davidson
Author:
Glenn Churchill
Author:
Michael J. Damzen
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