Tunable Ytterbium-Doped Fiber Laser Based on a Mechanically Induced Long Period Holey Fiber Grating |
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Authors: | Gilberto Anzueto-Sánchez Alejandro Martínez-Rios Ismael Tores-Gómez Daniel Ceballos-Herrera Romeo Selvas-Aguilar Victor Duran-Ramirez |
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Affiliation: | (1) Facultad de Ciencias Físico Matemáticas, UANL, Cd. Universitaria, N.L., 66450, México;(2) Universidad de Guadalajara, Centro Universitario de los Lagos, Jalisco, 47460, México;(3) Centro de Investigaciones en óptica A.C., León, Guanajuato, 37150, México |
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Abstract: | We describe a tunable double-clad Yb-doped fiber laser based on a long period fiber grating mechanically induced in a section of single mode holey fiber inserted into the laser cavity. The mechanically induced long period holey fiber grating acts as a wavelength-selective fiber filter whose central wavelength, linewidth, and strength can be tuned by changing the period, the length of the grating, and the applied pressure. The fiber laser gives a ∼12.6 nm tuning range, from ∼1079:4–1092nm, with slope efficiencies of 18.7–26.3% at this wavelength range, with respect to the launched pump power. |
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Keywords: | double-clad fiber laser long period grating wavelength tuning ytterbium-doped fiber holey fiber |
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