abstract

• The experimental demonstration of a gain-switched pulsed fiber laser with low repetition rate emission in the 2 µm wavelength region is presented. The laser cavity is based on the figure-9 shape, where the gain-switched operation of the laser is obtained by using a double-clad Tm-doped fiber (DCTDF) as gain medium and a commercial pulsed laser diode at 793-nm with configurable parameters as pump source. The pulse parameters of the pump source are optimized for efficient suppressing of unstable gain-switched laser oscillations. As a result, laser pulses with low repetition rate in a range from 10 to 20 kHz with laser emission at the wavelength of 1951 nm are obtained. The generated gain-switched pulses exhibit maximum duration and energy of 0.5 and 3.5 µJ, respectively. The delay time between the pump pulses and the gain-switched pulses is of ~ 0.5 µs. © 2021 Elsevier Inc.

authors

• Alaniz-Baylón J.
• Andres M.V.
• Bello Jiménez Miguel Ángel
• Cruz J.L.
• Durán-Sánchez M.
• Ibarra-Escamilla B.
• Posada-Ramírez B.
• Álvarez-Tamayo R.I.

publication date

• 2021-01-01

published in

• Optical Fiber Technology  Journal

keywords

• Fiber lasers; Gain-switched lasers; Low-repetition rate lasers; Thulium-doped fiber Fiber lasers; Optical pumping; Pulse repetition rate; Switching frequency; Thulium; Configurable parameter; Experimental demonstrations; Gain switched operation; Laser oscillations; Low repetition rate; Pulsed fiber lasers; Thulium-doped fibers; Wavelength regions; Pulsed lasers

Digital Object Identifier (DOI)

• 10.1016/j.yofte.2021.102660

PubMed ID

start page

end page

volume

• 66

issue