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All-fiber actively Q-switched Yb-doped laser |
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| Authors: | TV Andersen P Pérez-Millán R Duchowicz |
| Institution: | a Institute of Chemistry, University of Aarhus, Langelandsgade 140, 8000 Aarhus C, Denmark b Departamento de Física Aplicada-ICMUV, Universidad de Valencia, Dr. Moliner 50, 46100 Burjassot, Spain c Koheras, Blokken 84, 3460 Birkerød, Denmark d Centro de Investigaciones Ópticas (CIOp), Camino Parque Centenario e/505 y 508, 1900 La Plata, Argentina |
| Abstract: | An all-fiber actively Q-switched Yb-doped laser is presented. Q-switching is performed by modulating a fiber Bragg grating via a magnetostrictive rod which is fixed to the fiber at the position of the grating. By exposing the rod to a changing magnetic field, the rod is stretched and relaxed causing the Bragg wavelength of the grating to shift and thereby changes the Q-factor of the cavity. Using Yb-doped fiber, pulses at 1052 nm are obtained at repetition rates from 1 to 200 kHz. At 75 kHz, 0.5 μJ pulses with peak powers of 3 W can be produced when 180 mW of pump power is applied. To the knowledge of the authors, this is the first all-fiber actively Q-switched Yb-doped laser presented to date. |
| Keywords: | 42 55 Wd 42 60 Gd 42 60 By |
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