Gallium-diffused waveguides in sapphire
Gallium-diffused waveguides in sapphire
The fabrication and characterisation of gallium-diffused planar waveguides in sapphire is reported. Waveguides were fabricated by diffusion of 60nm - 200nm thick films of gallium oxide into c-cut sapphire at 1600°C for times ranging between 6 and 16 hours. Near-field intensity profiles of the guided modes were measured at wavelengths between 488nm and 850nm, and the surface index elevation was estimated to be up to (0.6±0.02)x10-2. Potential applications for low-threshold Ti:sapphire waveguide lasers and for optical integrated circuits with passive and active elements in sapphire are discussed.
Ti-LiNbO3, Wave-Guide Laser
1586-1588
Apostolopoulos, V.
8a898740-4c71-4040-a577-9b9d70530b4d
Hickey, L.M.B.
8879d8f5-f865-4099-8867-8ab9097ae74e
Sager, D.A.
605498e8-a964-4ce4-965b-e825ac37502c
Wilkinson, J.S.
73483cf3-d9f2-4688-9b09-1c84257884ca
2001
Apostolopoulos, V.
8a898740-4c71-4040-a577-9b9d70530b4d
Hickey, L.M.B.
8879d8f5-f865-4099-8867-8ab9097ae74e
Sager, D.A.
605498e8-a964-4ce4-965b-e825ac37502c
Wilkinson, J.S.
73483cf3-d9f2-4688-9b09-1c84257884ca
Apostolopoulos, V., Hickey, L.M.B., Sager, D.A. and Wilkinson, J.S.
(2001)
Gallium-diffused waveguides in sapphire.
Optics Letters, 26 (20), .
(doi:10.1364/OL.26.001586).
Abstract
The fabrication and characterisation of gallium-diffused planar waveguides in sapphire is reported. Waveguides were fabricated by diffusion of 60nm - 200nm thick films of gallium oxide into c-cut sapphire at 1600°C for times ranging between 6 and 16 hours. Near-field intensity profiles of the guided modes were measured at wavelengths between 488nm and 850nm, and the surface index elevation was estimated to be up to (0.6±0.02)x10-2. Potential applications for low-threshold Ti:sapphire waveguide lasers and for optical integrated circuits with passive and active elements in sapphire are discussed.
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Published date: 2001
Keywords:
Ti-LiNbO3, Wave-Guide Laser
Organisations:
Optoelectronics Research Centre, Quantum, Light & Matter Group
Identifiers
Local EPrints ID: 268005
URI: http://eprints.soton.ac.uk/id/eprint/268005
ISSN: 0146-9592
PURE UUID: caaf2d8c-93e2-4403-91ea-ee981d180ec4
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Date deposited: 06 Oct 2009 10:16
Last modified: 15 Mar 2024 03:29
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Author:
L.M.B. Hickey
Author:
D.A. Sager
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