Suppression of stimulated Raman scattering in a high power Yb-doped fiber amplifier using a W-type core with fundamental mode cut-off
Suppression of stimulated Raman scattering in a high power Yb-doped fiber amplifier using a W-type core with fundamental mode cut-off
We demonstrate the suppression of stimulated Raman scattering in a high power, single-mode Yb-doped fiber amplifier using a W-type core structure. Raman-scattered light is not guided by the core. The amplifier consists of a master oscillator power amplifier (MOPA) system, seeded with 103 ps pulses at 32 MHz repetition rate in the final amplification stage.
An average output power of 53 W, which corresponds to 13 kW of peak power, was achieved in the 23 m long W-type double-clad fiber without any significant loss of power due to transfer from the signal wavelength at 1060 nm to the Raman Stokes wavelength at 1114 nm and amplified spontaneous emission from Yb-ions at longer wavelengths (~1070 nm). The power conversion efficiency at 1060 nm was 80% with respect to the absorbed pump power.
5103-5113
Kim, J.
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Dupriez, P.
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Codemard, Christophe
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Nilsson, J.
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Sahu, J.K.
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12 June 2006
Kim, J.
3d0ba669-a721-4922-ab5b-a73e2f81816a
Dupriez, P.
4a46a78f-54e8-4611-822f-b55db0c37239
Codemard, Christophe
3aa50483-b61c-4e7e-b178-c9a88bb47bef
Nilsson, J.
f41d0948-4ca9-4b93-b44d-680ca0bf157b
Sahu, J.K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Kim, J., Dupriez, P., Codemard, Christophe, Nilsson, J. and Sahu, J.K.
(2006)
Suppression of stimulated Raman scattering in a high power Yb-doped fiber amplifier using a W-type core with fundamental mode cut-off.
Optics Express, 14 (12), .
(doi:10.1364/OE.14.005103).
Abstract
We demonstrate the suppression of stimulated Raman scattering in a high power, single-mode Yb-doped fiber amplifier using a W-type core structure. Raman-scattered light is not guided by the core. The amplifier consists of a master oscillator power amplifier (MOPA) system, seeded with 103 ps pulses at 32 MHz repetition rate in the final amplification stage.
An average output power of 53 W, which corresponds to 13 kW of peak power, was achieved in the 23 m long W-type double-clad fiber without any significant loss of power due to transfer from the signal wavelength at 1060 nm to the Raman Stokes wavelength at 1114 nm and amplified spontaneous emission from Yb-ions at longer wavelengths (~1070 nm). The power conversion efficiency at 1060 nm was 80% with respect to the absorbed pump power.
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oe-14-12-5103
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Published date: 12 June 2006
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Local EPrints ID: 38455
URI: http://eprints.soton.ac.uk/id/eprint/38455
ISSN: 1094-4087
PURE UUID: 4b474867-d014-44a8-ae90-b306fc740e8f
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Date deposited: 07 Mar 2007
Last modified: 16 Mar 2024 03:20
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Author:
J. Kim
Author:
P. Dupriez
Author:
Christophe Codemard
Author:
J. Nilsson
Author:
J.K. Sahu
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