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Analysis of confinement effects on microstructured Ln3+:KY1-x-yGdxLuy(WO4)2 waveguides

Analysis of confinement effects on microstructured Ln3+:KY1-x-yGdxLuy(WO4)2 waveguides
Analysis of confinement effects on microstructured Ln3+:KY1-x-yGdxLuy(WO4)2 waveguides
High quality KY1-x-yGdxLuy(WO4)2 lattice matched layers activated with Er3+ and Tm3+ have been grown by liquid phase epitaxy on KY(WO4)2 substrates. From these active layers, we have fabricated channel waveguides by dry etching of their surface through Ar ion milling. The effects on the confinement and overlap of pump and laser modes and on the optical losses of the waveguides due to a cladding layer with the same composition of the substrate grown on these microstructured waveguides have been analyzed. The results clearly show the beneficial effects that this strategy presents, such as a better confinement, a better overlap and specially reduced optical losses when compared to the surface channel waveguides.
306-315
Bolaños, Western
23026441-f9e6-44cf-95c2-c59892e65def
Carvajal, Joan J.
6464e62b-838e-4dce-a833-a7d776f02b71
Mateos, Xavier
11a2c860-8cd2-418a-9cea-6e5f342f1c17
Lifante, Ginés
f4cc16d9-bfcd-483e-ac94-34e897922ee0
Murugan, Ganapathy S.
a867686e-0535-46cc-ad85-c2342086b25b
Wilkinson, James S.
73483cf3-d9f2-4688-9b09-1c84257884ca
Aguiló, Magdalena
2d313857-5b54-4da3-bbb2-014133cc6241
Díaz, Francesc
b7b8bec4-8b16-49c4-beb1-3a6beeac3a1c
Bolaños, Western
23026441-f9e6-44cf-95c2-c59892e65def
Carvajal, Joan J.
6464e62b-838e-4dce-a833-a7d776f02b71
Mateos, Xavier
11a2c860-8cd2-418a-9cea-6e5f342f1c17
Lifante, Ginés
f4cc16d9-bfcd-483e-ac94-34e897922ee0
Murugan, Ganapathy S.
a867686e-0535-46cc-ad85-c2342086b25b
Wilkinson, James S.
73483cf3-d9f2-4688-9b09-1c84257884ca
Aguiló, Magdalena
2d313857-5b54-4da3-bbb2-014133cc6241
Díaz, Francesc
b7b8bec4-8b16-49c4-beb1-3a6beeac3a1c

Bolaños, Western, Carvajal, Joan J., Mateos, Xavier, Lifante, Ginés, Murugan, Ganapathy S., Wilkinson, James S., Aguiló, Magdalena and Díaz, Francesc (2011) Analysis of confinement effects on microstructured Ln3+:KY1-x-yGdxLuy(WO4)2 waveguides. Optical Materials Express, 1 (3), 306-315. (doi:10.1364/OME.1.000306).

Record type: Article

Abstract

High quality KY1-x-yGdxLuy(WO4)2 lattice matched layers activated with Er3+ and Tm3+ have been grown by liquid phase epitaxy on KY(WO4)2 substrates. From these active layers, we have fabricated channel waveguides by dry etching of their surface through Ar ion milling. The effects on the confinement and overlap of pump and laser modes and on the optical losses of the waveguides due to a cladding layer with the same composition of the substrate grown on these microstructured waveguides have been analyzed. The results clearly show the beneficial effects that this strategy presents, such as a better confinement, a better overlap and specially reduced optical losses when compared to the surface channel waveguides.

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Published date: 1 July 2011
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 189449
URI: https://eprints.soton.ac.uk/id/eprint/189449
PURE UUID: af071d38-0e9f-4ea6-9082-d4bcb49c46f4
ORCID for Ganapathy S. Murugan: ORCID iD orcid.org/0000-0002-2733-3273
ORCID for James S. Wilkinson: ORCID iD orcid.org/0000-0003-4712-1697

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Date deposited: 02 Jun 2011 10:32
Last modified: 21 Aug 2019 00:39

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