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High conversion efficiency single-pass second harmonic generation in a zinc-diffused periodically poled lithium niobate waveguide

High conversion efficiency single-pass second harmonic generation in a zinc-diffused periodically poled lithium niobate waveguide
High conversion efficiency single-pass second harmonic generation in a zinc-diffused periodically poled lithium niobate waveguide
We report a modified technique for the fabrication of zinc-diffused channel waveguides using z-cut electric-field periodically poled LiNbO3. Unlike previous work, the diffusion was carried out using metallic zinc at atmospheric pressure. By optimizing the thermal diffusion parameters, channel waveguides that preserve the existing periodically poled domain structures, support both TE and TM modes, and enhance photorefractive damage resistance were obtained. Nonlinear characterisation of the channel waveguides was investigated via second harmonic generation of a 1552nm laser with a maximum conversion efficiency of 59%W-1.cm-2 at 14.6ºC. Using a pulsed source a second harmonic conversion efficiency of 81% was achieved.
lithium niobate, nonlinear optics, devices, waveguides, channeled
1094-4087
4862-4868
Ming, Lu
6dcffe62-d2db-469d-89cb-7b09d0dd6a9e
Gawith, Corin
926665c0-84c7-4a1d-ae19-ee6d7d14c43e
Gallo, Katia
e7eb810a-0c5b-4ab4-bd14-52e4c80bb4f2
O'Connor, Martin
0810e1a6-6a33-4942-90d4-6fc165eed5ed
Emmerson, Gregory
43c24c31-1f2c-4347-ad75-86d9346a45af
Smith, Peter G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6
Ming, Lu
6dcffe62-d2db-469d-89cb-7b09d0dd6a9e
Gawith, Corin
926665c0-84c7-4a1d-ae19-ee6d7d14c43e
Gallo, Katia
e7eb810a-0c5b-4ab4-bd14-52e4c80bb4f2
O'Connor, Martin
0810e1a6-6a33-4942-90d4-6fc165eed5ed
Emmerson, Gregory
43c24c31-1f2c-4347-ad75-86d9346a45af
Smith, Peter G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6

Ming, Lu, Gawith, Corin, Gallo, Katia, O'Connor, Martin, Emmerson, Gregory and Smith, Peter G.R. (2005) High conversion efficiency single-pass second harmonic generation in a zinc-diffused periodically poled lithium niobate waveguide. Optics Express, 13 (13), 4862-4868. (doi:10.1364/OPEX.13.004862).

Record type: Article

Abstract

We report a modified technique for the fabrication of zinc-diffused channel waveguides using z-cut electric-field periodically poled LiNbO3. Unlike previous work, the diffusion was carried out using metallic zinc at atmospheric pressure. By optimizing the thermal diffusion parameters, channel waveguides that preserve the existing periodically poled domain structures, support both TE and TM modes, and enhance photorefractive damage resistance were obtained. Nonlinear characterisation of the channel waveguides was investigated via second harmonic generation of a 1552nm laser with a maximum conversion efficiency of 59%W-1.cm-2 at 14.6ºC. Using a pulsed source a second harmonic conversion efficiency of 81% was achieved.

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Published date: 2005
Keywords: lithium niobate, nonlinear optics, devices, waveguides, channeled

Identifiers

Local EPrints ID: 38208
URI: https://eprints.soton.ac.uk/id/eprint/38208
ISSN: 1094-4087
PURE UUID: e4952198-ecd3-4ce0-b247-b5a2575744ab
ORCID for Corin Gawith: ORCID iD orcid.org/0000-0002-3502-3558

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Date deposited: 06 Jun 2006
Last modified: 20 Jul 2019 01:08

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