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

Sousa, JM; Nilsson, J; Renaud, CC; Alvarez-Chavez, JA; Grudinin, AB; Minelly, JD; (1999) Broad-band diode-pumped ytterbium-doped fiber amplifier with 34-dBm output power. IEEE Photonics Technology Letters , 11 (1) 39 - 41. 10.1109/68.736383. Green open access

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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 multidiode concentrator pumps the amplifier at 980 nm, with similar to 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 50 mu J of energy. Reflections and backscatter 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.

Type: Article
Title: Broad-band diode-pumped ytterbium-doped fiber amplifier with 34-dBm output power
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/68.736383
Publisher version: http://dx.doi.org/10.1109/68.736383
Language: English
Additional information: © 1999 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Keywords: optical fiber amplifiers, optical fiber lasers, optical propagation in nonlinear media, optical pulse amplifiers, Q-switched lasers, ytterbium
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/19398
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