26 February 2018 All-fiber passively Q-switched thulium-doped fiber laser by using a holmium-doped fiber as saturable absorber
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Proceedings Volume 10512, Fiber Lasers XV: Technology and Systems; 105122T (2018) https://doi.org/10.1117/12.2288431
Event: SPIE LASE, 2018, San Francisco, California, United States
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.
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M. Durán Sánchez, M. Durán Sánchez, R. I. Álvarez-Tamayo, R. I. Álvarez-Tamayo, B. Posada-Ramírez, B. Posada-Ramírez, J. Alaniz-Baylón, J. Alaniz-Baylón, E. Bravo-Huerta, E. Bravo-Huerta, H. Santiago-Hernández, H. Santiago-Hernández, M. V. Hernández-Arriaga, M. V. Hernández-Arriaga, Miguel Bello-Jiménez, Miguel Bello-Jiménez, B. Ibarra-Escamilla, B. Ibarra-Escamilla, E. A. Kuzin, E. A. Kuzin, } "All-fiber passively Q-switched thulium-doped fiber laser by using a holmium-doped fiber as saturable absorber", Proc. SPIE 10512, Fiber Lasers XV: Technology and Systems, 105122T (26 February 2018); doi: 10.1117/12.2288431; https://doi.org/10.1117/12.2288431
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