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Thermal characteristics of an end-pumped high-power ytterbium-sensitized erbium-doped fiber laser under natural convection

Thermal characteristics of an end-pumped high-power ytterbium-sensitized erbium-doped fiber laser under natural convection
Thermal characteristics of an end-pumped high-power ytterbium-sensitized erbium-doped fiber laser under natural convection
We investigate the thermal characteristics of a polymer-clad fiber laser under natural convection when it is strongly pumped up to the damage point of the fiber. For this, we utilize a temperature sensing technique based on a fiber Bragg grating sensor array. We have measured the longitudinal temperature distribution of a 2.4m length ytterbium-sensitized erbium-doped fiber laser that was end-pumped at ~975nm. The measured temperature distribution decreases exponentially, approximately, decaying away from the pump-launch end. We attribute this to the heat dissipation of absorbed pump power. The maximum temperature difference between the fiber ends was approximately 190K at the maximum pump power of 60.8W. From this, we estimate that the core temperature reached ~236°C.
1094-4087
19865-19871
Jeong, Y.
85777b88-d35d-4e46-addb-1894fde2385d
Baek, S.
18a2a74d-59db-4f45-9640-87f4a0a5af6b
Dupriez, P.
4a46a78f-54e8-4611-822f-b55db0c37239
Maran, J.-N.
4227cb3f-b93e-4965-8646-878f8f43273b
Sahu, J.K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Nilsson, J.
f41d0948-4ca9-4b93-b44d-680ca0bf157b
Lee, B.
ebdd36ef-1a79-40af-b33a-8bd06a252e19
Jeong, Y.
85777b88-d35d-4e46-addb-1894fde2385d
Baek, S.
18a2a74d-59db-4f45-9640-87f4a0a5af6b
Dupriez, P.
4a46a78f-54e8-4611-822f-b55db0c37239
Maran, J.-N.
4227cb3f-b93e-4965-8646-878f8f43273b
Sahu, J.K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Nilsson, J.
f41d0948-4ca9-4b93-b44d-680ca0bf157b
Lee, B.
ebdd36ef-1a79-40af-b33a-8bd06a252e19

Jeong, Y., Baek, S., Dupriez, P., Maran, J.-N., Sahu, J.K., Nilsson, J. and Lee, B. (2008) Thermal characteristics of an end-pumped high-power ytterbium-sensitized erbium-doped fiber laser under natural convection. Optics Express, 16 (24), 19865-19871. (doi:10.1364/OE.16.019865).

Record type: Article

Abstract

We investigate the thermal characteristics of a polymer-clad fiber laser under natural convection when it is strongly pumped up to the damage point of the fiber. For this, we utilize a temperature sensing technique based on a fiber Bragg grating sensor array. We have measured the longitudinal temperature distribution of a 2.4m length ytterbium-sensitized erbium-doped fiber laser that was end-pumped at ~975nm. The measured temperature distribution decreases exponentially, approximately, decaying away from the pump-launch end. We attribute this to the heat dissipation of absorbed pump power. The maximum temperature difference between the fiber ends was approximately 190K at the maximum pump power of 60.8W. From this, we estimate that the core temperature reached ~236°C.

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e-pub ahead of print date: 24 November 2008

Identifiers

Local EPrints ID: 65830
URI: http://eprints.soton.ac.uk/id/eprint/65830
ISSN: 1094-4087
PURE UUID: dc12474a-345c-4155-bde3-44c31ec2fc1f
ORCID for J. Nilsson: ORCID iD orcid.org/0000-0003-1691-7959

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Date deposited: 20 Mar 2009
Last modified: 20 Jul 2019 01:11

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Contributors

Author: Y. Jeong
Author: S. Baek
Author: P. Dupriez
Author: J.-N. Maran
Author: J.K. Sahu
Author: J. Nilsson ORCID iD
Author: B. Lee

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