Dynamic control of refractive index during pulsed laser deposited waveguide growth
Dynamic control of refractive index during pulsed laser deposited waveguide growth
Engineering the optical properties of waveguides is important for the optimization of their guided optical mode characteristics. Here, we document the dynamic control of the refractive index and composition of crystalline films, via the substrate temperature, during pulsed-laser-deposition growth of Er(1%)-doped yttrium gallium garnet on <100>-orientated single-crystal yttrium aluminium garnet. An increasing substrate temperature is observed to reduce the gallium content in the grown film, with a corresponding reduction of refractive index. We demonstrate the ability to accurately control the refractive index via this technique and use it to grow a complex multi-core crystal waveguide. Our results highlight the potential of using pulsed laser deposition to fabricate crystal films with bespoke optical properties and thus engineer passive and active waveguide devices in situ.
Grant-Jacob, James
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Beecher, Stephen J.
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Riris, Haris
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Yu, Anthony
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Shepherd, David P.
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Eason, Robert W.
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Mackenzie, Jacob I.
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Grant-Jacob, James
c5d144d8-3c43-4195-8e80-edd96bfda91b
Beecher, Stephen J.
b3664adc-d6b5-4a5a-a09a-8e1415c6d3f5
Riris, Haris
375759e1-94b4-41bf-8b33-78da901bc766
Yu, Anthony
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Shepherd, David P.
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Eason, Robert W.
e38684c3-d18c-41b9-a4aa-def67283b020
Mackenzie, Jacob I.
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Grant-Jacob, James, Beecher, Stephen J., Riris, Haris, Yu, Anthony, Shepherd, David P., Eason, Robert W. and Mackenzie, Jacob I.
(2017)
Dynamic control of refractive index during pulsed laser deposited waveguide growth.
Optical Materials Express.
(doi:10.1364/OME.7.004073).
Abstract
Engineering the optical properties of waveguides is important for the optimization of their guided optical mode characteristics. Here, we document the dynamic control of the refractive index and composition of crystalline films, via the substrate temperature, during pulsed-laser-deposition growth of Er(1%)-doped yttrium gallium garnet on <100>-orientated single-crystal yttrium aluminium garnet. An increasing substrate temperature is observed to reduce the gallium content in the grown film, with a corresponding reduction of refractive index. We demonstrate the ability to accurately control the refractive index via this technique and use it to grow a complex multi-core crystal waveguide. Our results highlight the potential of using pulsed laser deposition to fabricate crystal films with bespoke optical properties and thus engineer passive and active waveguide devices in situ.
Text
OMEX_Index_JAGJ_Corrected
- Accepted Manuscript
More information
Accepted/In Press date: 19 September 2017
e-pub ahead of print date: 23 October 2017
Organisations:
Optoelectronics Research Centre, Faculty of Physical Sciences and Engineering
Identifiers
Local EPrints ID: 411170
URI: http://eprints.soton.ac.uk/id/eprint/411170
PURE UUID: 0e356c7a-3cb0-4786-a3b4-5f24e81f341d
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Date deposited: 15 Jun 2017 16:31
Last modified: 16 Mar 2024 05:26
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Contributors
Author:
James Grant-Jacob
Author:
Stephen J. Beecher
Author:
Haris Riris
Author:
Anthony Yu
Author:
David P. Shepherd
Author:
Robert W. Eason
Author:
Jacob I. Mackenzie
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