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Fiber-laser-pumped Er:YAG lasers

Fiber-laser-pumped Er:YAG lasers
Fiber-laser-pumped Er:YAG lasers
Hybrid fiber-laser-pumped solid-state lasers exploit high-power cladding-pumped fiber lasers for direct (in-band) pumping of a crystal-based solid-state laser to reduce heating in the laser crystal, and hence allow scaling to higher power in both continuous-wave (CW) and pulsed modes of operation. In this paper, we briefly review the attractions of the hybrid laser approach for generation of output in the ~ 1.6µm wavelength regime and consider the main design considerations for efficient operation of hybrid lasers based on Er:YAG in both CW and pulsed modes of operation. Examples of hybrid Er:YAG lasers, pumped by Er,Yb codoped fiber lasers at 1532 nm, with CW output powers up to 60 W at 1645 nm and 31 W at 1617 nm and slope efficiencies of 80% and 47% with respect to incident pump power, respectively, are described. In Q-switched mode of operation, pulse energies up to 30.5 mJ were obtained, limited by coating damage. Finally, the prospects for further increase in output power and improvement in overall performance in CW and Q-switched modes of operation will be discussed.
Er, Q-switched lasers, lasers, optical fiber lasers, solid lasers
1077-260X
361-371
Kim, J.W.
43f1b0c3-5a59-4449-a56a-386668bd061a
Shen, D.Y.
34730309-14b9-4ef9-bcd3-5a797284a18a
Sahu, J.K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Clarkson, W.A.
3b060f63-a303-4fa5-ad50-95f166df1ba2
Kim, J.W.
43f1b0c3-5a59-4449-a56a-386668bd061a
Shen, D.Y.
34730309-14b9-4ef9-bcd3-5a797284a18a
Sahu, J.K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Clarkson, W.A.
3b060f63-a303-4fa5-ad50-95f166df1ba2

Kim, J.W., Shen, D.Y., Sahu, J.K. and Clarkson, W.A. (2009) Fiber-laser-pumped Er:YAG lasers. IEEE Journal of Selected Topics in Quantum Electronics, 15 (2), 361-371. (doi:10.1109/JSTQE.2009.2010248).

Record type: Article

Abstract

Hybrid fiber-laser-pumped solid-state lasers exploit high-power cladding-pumped fiber lasers for direct (in-band) pumping of a crystal-based solid-state laser to reduce heating in the laser crystal, and hence allow scaling to higher power in both continuous-wave (CW) and pulsed modes of operation. In this paper, we briefly review the attractions of the hybrid laser approach for generation of output in the ~ 1.6µm wavelength regime and consider the main design considerations for efficient operation of hybrid lasers based on Er:YAG in both CW and pulsed modes of operation. Examples of hybrid Er:YAG lasers, pumped by Er,Yb codoped fiber lasers at 1532 nm, with CW output powers up to 60 W at 1645 nm and 31 W at 1617 nm and slope efficiencies of 80% and 47% with respect to incident pump power, respectively, are described. In Q-switched mode of operation, pulse energies up to 30.5 mJ were obtained, limited by coating damage. Finally, the prospects for further increase in output power and improvement in overall performance in CW and Q-switched modes of operation will be discussed.

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Published date: 3 April 2009
Keywords: Er, Q-switched lasers, lasers, optical fiber lasers, solid lasers
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 78882
URI: https://eprints.soton.ac.uk/id/eprint/78882
ISSN: 1077-260X
PURE UUID: 11a143fa-6c3d-4a51-9cc9-524d67a76c7f

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Date deposited: 15 Mar 2010
Last modified: 02 Dec 2019 21:22

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Contributors

Author: J.W. Kim
Author: D.Y. Shen
Author: J.K. Sahu
Author: W.A. Clarkson

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