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UV laser-induced poling inhibition produces bulk domains in MgO-doped lithium niobate crystals

UV laser-induced poling inhibition produces bulk domains in MgO-doped lithium niobate crystals
UV laser-induced poling inhibition produces bulk domains in MgO-doped lithium niobate crystals
Lithium niobate (LiNbO3) crystals have been widely used in many nonlinear optical processes such as frequency conversion by quasi-phase matching (QPM). Frequency conversion requires high intensity laser light, which may induce optical damage to the crystal resulting in the distortion of the optical beam. Adequate magnesium oxide (MgO) doping in LiNbO3 can significantly reduced the optical damage [1]. QPM requires periodic domain inversion of the crystal’s spontaneous polarization Ps at submicron-to-few microns periods. A common method used for domain patterning of LiNbO3 is electric field poling (EFP). While this method is an effective way to achieve domain patterning in congruent LiNbO3, it is not always successful when applied to MgO-doped LiNbO3, due to a pronounced sideways domain spreading [2]. In this contribution, we report on the fabrication of bulk domain structures in MgO doped LiNbO3, which are pre-defined by a spatial modulation of the lithium (Li) concentration induced by strongly absorbed UV laser light irradiation.
Optical Society of America
Boes, A.
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Steigerwald, H.
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Yudistira, D.
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Sivan, V.
53434367-05e4-4c6b-8d68-0d7982d71746
Wade, S.
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Mailis, S.
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Soergel, E.
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Mitchell, A.
9910b9a4-3565-449b-868e-3479d9ba5ff4
Boes, A.
67d68086-32d6-4178-b127-2ba768c4ba08
Steigerwald, H.
f5c7bc7e-a0db-4714-b2f0-1debd45b81be
Yudistira, D.
9c01d6cc-fb90-4458-a2d8-468973a8b86b
Sivan, V.
53434367-05e4-4c6b-8d68-0d7982d71746
Wade, S.
32a83c28-5029-4810-a7fb-4c3d8474d55b
Mailis, S.
233e0768-3f8d-430e-8fdf-92e6f4f6a0c4
Soergel, E.
f4d5aad1-9f81-4877-bceb-33ceed99d9d7
Mitchell, A.
9910b9a4-3565-449b-868e-3479d9ba5ff4

Boes, A., Steigerwald, H., Yudistira, D., Sivan, V., Wade, S., Mailis, S., Soergel, E. and Mitchell, A. (2015) UV laser-induced poling inhibition produces bulk domains in MgO-doped lithium niobate crystals. In Proceedings 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference, CLEO/Europe-EQEC 2015. Optical Society of America..

Record type: Conference or Workshop Item (Paper)

Abstract

Lithium niobate (LiNbO3) crystals have been widely used in many nonlinear optical processes such as frequency conversion by quasi-phase matching (QPM). Frequency conversion requires high intensity laser light, which may induce optical damage to the crystal resulting in the distortion of the optical beam. Adequate magnesium oxide (MgO) doping in LiNbO3 can significantly reduced the optical damage [1]. QPM requires periodic domain inversion of the crystal’s spontaneous polarization Ps at submicron-to-few microns periods. A common method used for domain patterning of LiNbO3 is electric field poling (EFP). While this method is an effective way to achieve domain patterning in congruent LiNbO3, it is not always successful when applied to MgO-doped LiNbO3, due to a pronounced sideways domain spreading [2]. In this contribution, we report on the fabrication of bulk domain structures in MgO doped LiNbO3, which are pre-defined by a spatial modulation of the lithium (Li) concentration induced by strongly absorbed UV laser light irradiation.

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More information

Published date: 2015
Venue - Dates: 2015 European Conference on Lasers and Electro-Optics: CLEO®/Europe-EQEC 2015, Munich, Germany, 2015-06-21 - 2015-06-25

Identifiers

Local EPrints ID: 431262
URI: https://eprints.soton.ac.uk/id/eprint/431262
PURE UUID: 0e7677b4-506f-4d90-8482-0f0217aadee8
ORCID for S. Mailis: ORCID iD orcid.org/0000-0001-8100-2670

Catalogue record

Date deposited: 29 May 2019 16:30
Last modified: 11 Jun 2019 00:37

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