High-power linearly-polarized single-frequency thulium-doped fiber master-oscillator power-amplifier
High-power linearly-polarized single-frequency thulium-doped fiber master-oscillator power-amplifier
We report a high power narrow-linewidth source at ~2 µm based on a Tm-doped fiber distributed-feedback master-oscillator and three Tm fiber amplifier stages. The master-oscillator and first two amplifier stages were in-band pumped by Er,Yb fiber lasers operating at 1565 nm, and the final stage amplifier was cladding-pumped at 795 nm by two spatially combined diode-stacks. The MOPA yielded 100 W of single frequency output at 1943 nm with a beam propagation factor (M2) of 1.25 and with a polarization extinction ratio of >94%. The output power was limited by thermally-induced damage in the final amplifier stage. The prospects for further power scaling are considered.
1607-1612
Pearson, L.
3e064e83-6545-4da7-963b-4672d5d04c12
Kim, J.W.
3d0ba669-a721-4922-ab5b-a73e2f81816a
Zhang, Z.
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Ibsen, M.
22e58138-5ce9-4bed-87e1-735c91f8f3b9
Sahu, J.K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Clarkson, W.A.
3b060f63-a303-4fa5-ad50-95f166df1ba2
18 January 2010
Pearson, L.
3e064e83-6545-4da7-963b-4672d5d04c12
Kim, J.W.
3d0ba669-a721-4922-ab5b-a73e2f81816a
Zhang, Z.
fd968521-9e43-4b50-b67e-3b6dfa095d13
Ibsen, M.
22e58138-5ce9-4bed-87e1-735c91f8f3b9
Sahu, J.K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Clarkson, W.A.
3b060f63-a303-4fa5-ad50-95f166df1ba2
Pearson, L., Kim, J.W., Zhang, Z., Ibsen, M., Sahu, J.K. and Clarkson, W.A.
(2010)
High-power linearly-polarized single-frequency thulium-doped fiber master-oscillator power-amplifier.
Optics Express, 18 (2), .
(doi:10.1364/OE.18.001607).
Abstract
We report a high power narrow-linewidth source at ~2 µm based on a Tm-doped fiber distributed-feedback master-oscillator and three Tm fiber amplifier stages. The master-oscillator and first two amplifier stages were in-band pumped by Er,Yb fiber lasers operating at 1565 nm, and the final stage amplifier was cladding-pumped at 795 nm by two spatially combined diode-stacks. The MOPA yielded 100 W of single frequency output at 1943 nm with a beam propagation factor (M2) of 1.25 and with a polarization extinction ratio of >94%. The output power was limited by thermally-induced damage in the final amplifier stage. The prospects for further power scaling are considered.
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Published date: 18 January 2010
Organisations:
Optoelectronics Research Centre
Identifiers
Local EPrints ID: 78887
URI: http://eprints.soton.ac.uk/id/eprint/78887
ISSN: 1094-4087
PURE UUID: bb32f121-1244-4e5a-bb33-e0da855ac168
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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 02:45
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Author:
L. Pearson
Author:
J.W. Kim
Author:
Z. Zhang
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