375-395nm UV Generation in Zn-indiffused MgO-doped PPLN Waveguides pumped by an Alexandrite Laser
375-395nm UV Generation in Zn-indiffused MgO-doped PPLN Waveguides pumped by an Alexandrite Laser
We present results of wide wavelength coverage in the ultra-violet (UV) from a Zn-indiffused MgO-doped periodically-poled lithium-niobate (PPLN) waveguide. A continuous tuning range of 375–395 nm is obtained via second-harmonic-generation (SHG) in Λ = 6.1 − 6.9 µm poled gratings using a single continuously tunable alexandrite pump laser. Detailed results of the waveguide modes are provided and are shown to match well with the theoretical model. A maximum UV power of 4.1 mW is obtained from 200 mW of throughput pump power from the third-order SHG interaction, providing a route toward a compact and rugged laser source across the 350–400 nm UV range.
8851-8861
Tawy, Goronwy
be5a54aa-e151-460f-8f1f-3a99ae4fe540
Palomar Davidson, Noelia
baf5bd93-fafe-4859-9cfd-f43e8b5a42e7
Bannerman, Rex H.
7f7d5c3e-8e5d-45d5-8fd7-8d1511330e08
Churchill, Glenn
5933a331-fba3-444b-8352-273112c3d6a6
Smith, Peter G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6
Gates, James C.
b71e31a1-8caa-477e-8556-b64f6cae0dc2
Gawith, Corin B.E.
926665c0-84c7-4a1d-ae19-ee6d7d14c43e
24 February 2025
Tawy, Goronwy
be5a54aa-e151-460f-8f1f-3a99ae4fe540
Palomar Davidson, Noelia
baf5bd93-fafe-4859-9cfd-f43e8b5a42e7
Bannerman, Rex H.
7f7d5c3e-8e5d-45d5-8fd7-8d1511330e08
Churchill, Glenn
5933a331-fba3-444b-8352-273112c3d6a6
Smith, Peter G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6
Gates, James C.
b71e31a1-8caa-477e-8556-b64f6cae0dc2
Gawith, Corin B.E.
926665c0-84c7-4a1d-ae19-ee6d7d14c43e
Tawy, Goronwy, Palomar Davidson, Noelia, Bannerman, Rex H., Churchill, Glenn, Smith, Peter G.R., Gates, James C. and Gawith, Corin B.E.
(2025)
375-395nm UV Generation in Zn-indiffused MgO-doped PPLN Waveguides pumped by an Alexandrite Laser.
Optics Express, 33 (4), .
(doi:10.1364/OE.553761).
Abstract
We present results of wide wavelength coverage in the ultra-violet (UV) from a Zn-indiffused MgO-doped periodically-poled lithium-niobate (PPLN) waveguide. A continuous tuning range of 375–395 nm is obtained via second-harmonic-generation (SHG) in Λ = 6.1 − 6.9 µm poled gratings using a single continuously tunable alexandrite pump laser. Detailed results of the waveguide modes are provided and are shown to match well with the theoretical model. A maximum UV power of 4.1 mW is obtained from 200 mW of throughput pump power from the third-order SHG interaction, providing a route toward a compact and rugged laser source across the 350–400 nm UV range.
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375_400nm_PPLN_Paper
- Accepted Manuscript
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oe-33-4-8851 (1)
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Accepted/In Press date: 15 February 2025
Published date: 24 February 2025
Identifiers
Local EPrints ID: 509271
URI: http://eprints.soton.ac.uk/id/eprint/509271
ISSN: 1094-4087
PURE UUID: d1693752-c693-493c-9aaa-d94f669798be
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Date deposited: 17 Feb 2026 17:42
Last modified: 18 Feb 2026 03:01
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