Pulsed operation of a resonantly pumped, linearly polarised, large mode area holmium-doped fibre amplifier
Pulsed operation of a resonantly pumped, linearly polarised, large mode area holmium-doped fibre amplifier
We present the design of a polarisation maintaining, resonantly and cladding pumped, large mode area holmium-doped fibre. We describe the operation of this fibre in a pulsed amplifier configuration. The amplifier produced pulses with energy of 2.25 mJ and duration of 20 ns at a repetition rate of 20 kHz and average power of 45 W. The holmium-doped fibre provided >10 dB of gain at 2.09 µm and the polarisation extinction ratio was >11.5 dB. The beam quality of the output (M2) was 1.6. To the best of our knowledge this is the highest pulse energy achieved from any singly holmium-doped fibre by an order of magnitude.
7186-7193
Hemming, Alexander
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Richards, Jim
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Simakov, Nikita
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Davidson, Alan
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Carmody, Neil
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Haub, John
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Carter, Adrian
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24 March 2014
Hemming, Alexander
2f1ab4dc-cda5-4e5e-be44-c8365a0f2345
Richards, Jim
8b98f601-a46d-41b2-bc8a-844a623bfc55
Simakov, Nikita
984eef10-d13b-4cc6-852f-bcc58b432832
Davidson, Alan
f2eb8c6e-bc06-4627-a86c-2f147238ffe8
Carmody, Neil
dd204a31-9c51-485b-973b-4391b7390b6e
Haub, John
38366a29-41e6-4aae-893d-a56386bdfea3
Carter, Adrian
e8f1e92e-cef0-4f6f-8257-1963361f2340
Hemming, Alexander, Richards, Jim, Simakov, Nikita, Davidson, Alan, Carmody, Neil, Haub, John and Carter, Adrian
(2014)
Pulsed operation of a resonantly pumped, linearly polarised, large mode area holmium-doped fibre amplifier.
Optics Express, 22 (6), .
(doi:10.1364/OE.22.007186).
Abstract
We present the design of a polarisation maintaining, resonantly and cladding pumped, large mode area holmium-doped fibre. We describe the operation of this fibre in a pulsed amplifier configuration. The amplifier produced pulses with energy of 2.25 mJ and duration of 20 ns at a repetition rate of 20 kHz and average power of 45 W. The holmium-doped fibre provided >10 dB of gain at 2.09 µm and the polarisation extinction ratio was >11.5 dB. The beam quality of the output (M2) was 1.6. To the best of our knowledge this is the highest pulse energy achieved from any singly holmium-doped fibre by an order of magnitude.
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Published date: 24 March 2014
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Local EPrints ID: 415546
URI: http://eprints.soton.ac.uk/id/eprint/415546
ISSN: 1094-4087
PURE UUID: 3a7ce817-9e09-49d6-8ce8-e63046be51c7
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Date deposited: 15 Nov 2017 17:30
Last modified: 15 Mar 2024 16:53
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Contributors
Author:
Alexander Hemming
Author:
Jim Richards
Author:
Nikita Simakov
Author:
Alan Davidson
Author:
Neil Carmody
Author:
John Haub
Author:
Adrian Carter
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