Long-period fiber grating as wavelength selective element in double-clad Yb-doped fiber-ring lasers

0341057 - ÚFE 2010 RIV DE eng J - Journal Article
Peterka, Pavel - Maria, J. - Dussardier, B. - Slavík, Radan - Honzátko, Pavel - Kubeček, V.
Long-period fiber grating as wavelength selective element in double-clad Yb-doped fiber-ring lasers.
Laser Physics Letters. Roč. 6, č. 10 (2009), s. 732-736. ISSN 1612-2011. E-ISSN 1612-202X
R&D Projects: GA MŠMT MEB020830; GA ČR(CZ) GA102/07/0999; GA MŠMT OC09059
Institutional research plan: CEZ:AV0Z20670512
Keywords : fiber lasers * long period fiber gratings * ytterbium
Subject RIV: JA - Electronics ; Optoelectronics, Electrical Engineering
Impact factor: 5.502, year: 2009

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. 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
Permanent Link: http://hdl.handle.net/11104/0184164