Adaptable beam profiles from a dual-cavity Nd:YAG laser
Adaptable beam profiles from a dual-cavity Nd:YAG laser
We report a technique to tailor a laser beam profile from a donut to quasi-top-hat intensity distribution, directly from the laser, simply achieved by simultaneous excitation and control of the relative contributions of the fundamental (TEM00) and first order Laguerre-Gaussian (LG01) transverse modes. Exploiting a dual-cavity configuration with a single Nd:YAG gain element, adaptable continuous-wave laser beam profiles from the primary cavity could be obtained by varying the diffraction loss of an acousto-optic modulator in the secondary cavity. We investigated the resultant beam profiles as a function of pump power and the AOM diffraction loss, and discuss the prospects for tunable laser beams profiles.
1740-1743
Kim, D.J.
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Mackenzie, J.I.
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Kim, J.W.
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Kim, D.J.
0fd9f257-64e8-47c1-9b69-5ef5dd10db8d
Mackenzie, J.I.
1d82c826-fdbf-425b-ac04-be43ccf12008
Kim, J.W.
43f1b0c3-5a59-4449-a56a-386668bd061a
Kim, D.J., Mackenzie, J.I. and Kim, J.W.
(2016)
Adaptable beam profiles from a dual-cavity Nd:YAG laser.
Optics Letters, 41 (8), .
(doi:10.1364/OL.41.001740).
Abstract
We report a technique to tailor a laser beam profile from a donut to quasi-top-hat intensity distribution, directly from the laser, simply achieved by simultaneous excitation and control of the relative contributions of the fundamental (TEM00) and first order Laguerre-Gaussian (LG01) transverse modes. Exploiting a dual-cavity configuration with a single Nd:YAG gain element, adaptable continuous-wave laser beam profiles from the primary cavity could be obtained by varying the diffraction loss of an acousto-optic modulator in the secondary cavity. We investigated the resultant beam profiles as a function of pump power and the AOM diffraction loss, and discuss the prospects for tunable laser beams profiles.
Text
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Accepted/In Press date: 11 March 2016
e-pub ahead of print date: 6 April 2016
Organisations:
Optoelectronics Research Centre
Identifiers
Local EPrints ID: 390212
URI: http://eprints.soton.ac.uk/id/eprint/390212
ISSN: 0146-9592
PURE UUID: 225c1413-2233-4bef-9997-e77b1d2a6fdc
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Date deposited: 14 Jun 2016 10:30
Last modified: 15 Mar 2024 03:07
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Contributors
Author:
D.J. Kim
Author:
J.I. Mackenzie
Author:
J.W. Kim
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