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Broadband diode-pumped ytterbium-doped fiber amplifier with 34 dBm output power

Broadband diode-pumped ytterbium-doped fiber amplifier with 34 dBm output power
Broadband diode-pumped ytterbium-doped fiber amplifier with 34 dBm output power
We investigate a high-power diode-pumped double-clad ytterbium-doped fiber amplifier with 34 dBm average output power and 1050 - 1095 nm bandwidth. A multi-diode concentrator pumps the amplifier at 980 nm, with ~6 W of power launched into the inner cladding. Besides cw-signals, we amplify pulses from a mode-locked laser to 1 kW of peak power with only minor nonlinear distortions as well as pulses from a Q-switched laser to 50µJ of energy. Reflections and back-scatter limit the gain of the amplifier to 40 dB for a pump power of 2.5 W. For higher pump-powers than this, the amplifier started to self-Q-switch. The results are important for the development of cladding-pumped high-power fiber amplifiers.
1041-1135
39-41
Sousa, J.M.
1e890487-e9bd-4e87-a929-498cf7ed1829
Nilsson, J.
f41d0948-4ca9-4b93-b44d-680ca0bf157b
Renaud, C.C.
ccb88119-de19-4d26-a505-31d5eb166ce0
Alvarez-Chavez, J.A.
fbbf6f21-0e7a-456c-b675-540b4f0501d1
Grudinin, A.B.
8f50b467-7d60-46db-b29d-a89b1059a1d8
Minelly, J.D.
5f4c7b1a-99ee-4746-9e3c-4cb420615c50
Sousa, J.M.
1e890487-e9bd-4e87-a929-498cf7ed1829
Nilsson, J.
f41d0948-4ca9-4b93-b44d-680ca0bf157b
Renaud, C.C.
ccb88119-de19-4d26-a505-31d5eb166ce0
Alvarez-Chavez, J.A.
fbbf6f21-0e7a-456c-b675-540b4f0501d1
Grudinin, A.B.
8f50b467-7d60-46db-b29d-a89b1059a1d8
Minelly, J.D.
5f4c7b1a-99ee-4746-9e3c-4cb420615c50

Sousa, J.M., Nilsson, J., Renaud, C.C., Alvarez-Chavez, J.A., Grudinin, A.B. and Minelly, J.D. (1999) Broadband diode-pumped ytterbium-doped fiber amplifier with 34 dBm output power. IEEE Photonics Technology Letters, 11 (1), 39-41. (doi:10.1109/68.736383).

Record type: Article

Abstract

We investigate a high-power diode-pumped double-clad ytterbium-doped fiber amplifier with 34 dBm average output power and 1050 - 1095 nm bandwidth. A multi-diode concentrator pumps the amplifier at 980 nm, with ~6 W of power launched into the inner cladding. Besides cw-signals, we amplify pulses from a mode-locked laser to 1 kW of peak power with only minor nonlinear distortions as well as pulses from a Q-switched laser to 50µJ of energy. Reflections and back-scatter limit the gain of the amplifier to 40 dB for a pump power of 2.5 W. For higher pump-powers than this, the amplifier started to self-Q-switch. The results are important for the development of cladding-pumped high-power fiber amplifiers.

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More information

Published date: January 1999

Identifiers

Local EPrints ID: 77854
URI: http://eprints.soton.ac.uk/id/eprint/77854
ISSN: 1041-1135
PURE UUID: 462ed39f-6fa4-499b-bf6b-1ca66bbcf8dd
ORCID for J. Nilsson: ORCID iD orcid.org/0000-0003-1691-7959

Catalogue record

Date deposited: 11 Mar 2010
Last modified: 03 Dec 2019 01:56

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