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Q-switched Nd:YAG optical vortex lasers

Q-switched Nd:YAG optical vortex lasers
Q-switched Nd:YAG optical vortex lasers
Q-switched operation of a high-quality Nd:YAG optical vortex laser with the first order Laguerre-Gaussian mode and well-determined helical wavefronts using a fiber-based pump beam conditioning scheme is reported. A simple two-mirror resonator incorporating an acousto-optic Q-switch was employed, along with an etalon and a Brewster plate to enforce the particular helicity of the output. The laser yielded Q-switched pulses with similar to 250 µJ pulse energy and similar to 33 ns pulse duration (FWHM) at a 0.1 kHz repetition rate for 5.1 W of absorbed pump power. The handedness of the helical wavefronts was preserved regardless of the repetition rates. The prospects of further power scaling and improved laser performance are discussed.
1094-4087
29449-29454
Kim, D.J.
0fd9f257-64e8-47c1-9b69-5ef5dd10db8d
Kim, J.W.
43f1b0c3-5a59-4449-a56a-386668bd061a
Clarkson, W.A.
3b060f63-a303-4fa5-ad50-95f166df1ba2
Kim, D.J.
0fd9f257-64e8-47c1-9b69-5ef5dd10db8d
Kim, J.W.
43f1b0c3-5a59-4449-a56a-386668bd061a
Clarkson, W.A.
3b060f63-a303-4fa5-ad50-95f166df1ba2

Kim, D.J., Kim, J.W. and Clarkson, W.A. (2013) Q-switched Nd:YAG optical vortex lasers. Optics Express, 21 (24), 29449-29454. (doi:10.1364/OE.21.029449).

Record type: Article

Abstract

Q-switched operation of a high-quality Nd:YAG optical vortex laser with the first order Laguerre-Gaussian mode and well-determined helical wavefronts using a fiber-based pump beam conditioning scheme is reported. A simple two-mirror resonator incorporating an acousto-optic Q-switch was employed, along with an etalon and a Brewster plate to enforce the particular helicity of the output. The laser yielded Q-switched pulses with similar to 250 µJ pulse energy and similar to 33 ns pulse duration (FWHM) at a 0.1 kHz repetition rate for 5.1 W of absorbed pump power. The handedness of the helical wavefronts was preserved regardless of the repetition rates. The prospects of further power scaling and improved laser performance are discussed.

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More information

Accepted/In Press date: 18 November 2013
e-pub ahead of print date: 21 November 2013
Published date: 2 December 2013
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 378480
URI: https://eprints.soton.ac.uk/id/eprint/378480
ISSN: 1094-4087
PURE UUID: b689420c-0db1-47c0-a2e2-2b31a624cc70

Catalogue record

Date deposited: 29 Jun 2015 14:19
Last modified: 03 Apr 2019 16:30

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Contributors

Author: D.J. Kim
Author: J.W. Kim
Author: W.A. Clarkson

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