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Highly efficient 110-W closed-cycle cryogenically cooled Nd:YAG laser operating at 946-nm

Highly efficient 110-W closed-cycle cryogenically cooled Nd:YAG laser operating at 946-nm
Highly efficient 110-W closed-cycle cryogenically cooled Nd:YAG laser operating at 946-nm

We report a new, to the best of our knowledge, record power and efficiency for a 946 nm Nd:YAG laser, producing >110 W (5 TWm −2 sr −1) with a slope efficiency of 80%, with respect to absorbed pump power, and an optical-to-optical efficiency of 74%, with respect to incident power. To achieve this performance, we utilized a closed-cycle acoustic Stirling cryostat to maintain the gain medium temperature at ∼80 K and direct in-band pumping with a volume-Bragg-grating stabilized diode laser bar operating at 868 nm. Daily operation, including cycling of the laser crystal temperature, akin to a comparable water-cooled solid-state laser system, is demonstrated.

0146-9592
5368-5371
Shayeganrad, Gholamreza
8ea55a9a-4fe2-49df-a0f4-55fa81596dab
Cante, Silvia
153acbb4-d6d1-4f3e-ada7-1be8b5b94c8f
Pelegrin Mosquera, Jorge
4e39f6e9-b12b-46a0-94a7-70727dcb53ec
Bailey, Wendell
c356b2e3-a783-4b4c-8c7b-521696d3b37c
Mackenzie, Jacob
1d82c826-fdbf-425b-ac04-be43ccf12008
Shayeganrad, Gholamreza
8ea55a9a-4fe2-49df-a0f4-55fa81596dab
Cante, Silvia
153acbb4-d6d1-4f3e-ada7-1be8b5b94c8f
Pelegrin Mosquera, Jorge
4e39f6e9-b12b-46a0-94a7-70727dcb53ec
Bailey, Wendell
c356b2e3-a783-4b4c-8c7b-521696d3b37c
Mackenzie, Jacob
1d82c826-fdbf-425b-ac04-be43ccf12008

Shayeganrad, Gholamreza, Cante, Silvia, Pelegrin Mosquera, Jorge, Bailey, Wendell and Mackenzie, Jacob (2020) Highly efficient 110-W closed-cycle cryogenically cooled Nd:YAG laser operating at 946-nm. Optics Letters, 45 (19), 5368-5371. (doi:10.1364/OL.401011).

Record type: Article

Abstract

We report a new, to the best of our knowledge, record power and efficiency for a 946 nm Nd:YAG laser, producing >110 W (5 TWm −2 sr −1) with a slope efficiency of 80%, with respect to absorbed pump power, and an optical-to-optical efficiency of 74%, with respect to incident power. To achieve this performance, we utilized a closed-cycle acoustic Stirling cryostat to maintain the gain medium temperature at ∼80 K and direct in-band pumping with a volume-Bragg-grating stabilized diode laser bar operating at 868 nm. Daily operation, including cycling of the laser crystal temperature, akin to a comparable water-cooled solid-state laser system, is demonstrated.

Full text not available from this repository.

More information

Submitted date: 2 July 2020
Accepted/In Press date: 1 August 2020
e-pub ahead of print date: 21 September 2020
Published date: 1 October 2020

Identifiers

Local EPrints ID: 445817
URI: http://eprints.soton.ac.uk/id/eprint/445817
ISSN: 0146-9592
PURE UUID: 7b64d1de-1f75-4c56-b268-688e3e41ea9f
ORCID for Silvia Cante: ORCID iD orcid.org/0000-0002-5981-0855
ORCID for Jacob Mackenzie: ORCID iD orcid.org/0000-0002-3355-6051

Catalogue record

Date deposited: 08 Jan 2021 17:30
Last modified: 18 Feb 2021 17:30

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