Tunable SESAM-based mode-locked soliton fiber laser in linear cavity by axial-strain applied to an FBG
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AuthorAporta Litago, Iñaki; Leandro Gonzalez, Daniel; Quintela Incera, María Ángeles; Pérez Herrera, Rosa Ana; López Amo, Manuel; López Higuera, José Miguel
A self-started stable tunablemode-locked soliton fiber laser in a linear cavity structure composed by commercial passive elements is presented in this paper. It is based on the combination of an erbium-doped fiber as the active medium, and a saturated fiber Bragg grating (FBG) as a partial mirror of the cavity. The other side of the cavity consists of a semiconductor saturable absorber mirror acting also as the mode-locking device. The central wavelength of the FBG is selected by the application of axial strain giving rise to a tunable soliton over 8.6 nm on the C band with a variable spacing of 0.01 nm. The laser delivers 18.9 ps long pulses with a 0.14 nm bandwidth, an 8.2 MHz repetition rate, a pulse energy of 89 pJ, and a peak power of 4.71 W.