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All-fiber passively Q-switched thulium-doped fiber laser by using a holmium-doped fiber as saturable absorber
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Paper Abstract

We report a linear cavity all-fiber passive Q-switched thulium-doped fiber laser operating at the 2 μm wavelength range. The laser configuration is based on a thulium-doped fiber used as a gain medium and an unpumped segment of holmium-doped fiber which acts as a fiber saturable absorber. The cavity is formed by a fiber optical loop mirror and the flat end facet of the holmium-doped fiber. The fiber segments as saturable absorber is a 1-m long single mode doubleclad holmium-doped fiber. Q-switched pulses are obtained at the wavelength of 2024.5 nm with a pulse width of 1.1 μs. The pulse repetition rate increases as a linear function of the applied pump power. The maximum pulse repetition rate of 100 kHz was obtained with a pump power of 2.4 W.

Paper Details

Date Published: 26 February 2018
PDF: 7 pages
Proc. SPIE 10512, Fiber Lasers XV: Technology and Systems, 105122T (26 February 2018); doi: 10.1117/12.2288431
Show Author Affiliations
M. Durán Sánchez, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
R. I. Álvarez-Tamayo, Univ. Autónoma de Nuevo León (Mexico)
B. Posada-Ramírez, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
J. Alaniz-Baylón, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
E. Bravo-Huerta, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
H. Santiago-Hernández, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
M. V. Hernández-Arriaga, Insitituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
Miguel Bello-Jiménez, Univ. Autónoma de San Luis Potosí (Mexico)
B. Ibarra-Escamilla, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
E. A. Kuzin, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)


Published in SPIE Proceedings Vol. 10512:
Fiber Lasers XV: Technology and Systems
Ingmar Hartl; Adrian L. Carter, Editor(s)

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