Extension of the double-clad Yb/doped fiber laser oscillation range thanks to long-period fiber grating filters
Extension of the double-clad Yb/doped fiber laser oscillation range thanks to long-period fiber grating filters
Selection of operating wavelength of the Yb-doped fiber-ring lasers using long-period fiber gratings (LPFGs) is proposed. In the proposed method, customized LPFG that sustains high powers serves as a broad-band rejection filter. It modifies the net gain profile of the laser, enabling the peak gain to occur at a designed wavelength. Spectral range of oscillation between 1050-1110 nm was experimentally demonstrated. The spectral range can be extended to both shorter and longer wavelengths with proper design of the LPFG and length of the Yb-doped fiber. The gratings were inscribed by CO2 laser and the grating period down to 175 µm was achieved being, to our best knowledge, the shortest reported LPFG period using this technique.
fiber laser, ring cavity, long-period fiber grating, cladding pumping, ytterbium
Peterka, Pavel
6b5f168e-984a-4d6d-825d-458210fb2ed8
Slavík, Radan
2591726a-ecc0-4d1a-8e1d-4d0fd8da8f7d
14 June 2009
Peterka, Pavel
6b5f168e-984a-4d6d-825d-458210fb2ed8
Slavík, Radan
2591726a-ecc0-4d1a-8e1d-4d0fd8da8f7d
Peterka, Pavel and Slavík, Radan
(2009)
Extension of the double-clad Yb/doped fiber laser oscillation range thanks to long-period fiber grating filters.
European Conference on Lasers and Electro-Optics (CLEO/Europe-EQEC), , Munich, Germany.
14 - 19 Jun 2009.
Record type:
Conference or Workshop Item
(Paper)
Abstract
Selection of operating wavelength of the Yb-doped fiber-ring lasers using long-period fiber gratings (LPFGs) is proposed. In the proposed method, customized LPFG that sustains high powers serves as a broad-band rejection filter. It modifies the net gain profile of the laser, enabling the peak gain to occur at a designed wavelength. Spectral range of oscillation between 1050-1110 nm was experimentally demonstrated. The spectral range can be extended to both shorter and longer wavelengths with proper design of the LPFG and length of the Yb-doped fiber. The gratings were inscribed by CO2 laser and the grating period down to 175 µm was achieved being, to our best knowledge, the shortest reported LPFG period using this technique.
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Published date: 14 June 2009
Venue - Dates:
European Conference on Lasers and Electro-Optics (CLEO/Europe-EQEC), , Munich, Germany, 2009-06-14 - 2009-06-19
Keywords:
fiber laser, ring cavity, long-period fiber grating, cladding pumping, ytterbium
Identifiers
Local EPrints ID: 76270
URI: http://eprints.soton.ac.uk/id/eprint/76270
PURE UUID: e55cad57-dc9b-4c67-b967-6e91bb1bb518
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Date deposited: 17 Mar 2010
Last modified: 07 Feb 2023 02:51
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Contributors
Author:
Pavel Peterka
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