abstract

• We report on a ring cavity, multi-wavelength, passive Q-switched erbium-ytterbium double cladding fiber laser based on the use of an unpumped segment of Tm-doped fiber acting as a saturable absorber for passive Q-switched pulse generation and a wavelength filter for multi-wavelength laser generation. By performing pump power variations from 1.6 to 9.8 W, stable Q-switched laser pulses are observed in a repetition rate from 135.8 to 27.5 kHz at room temperature. With a maximal repetition rate of 135.8 kHz, the minimum pulse duration of 430 ns is obtained. The maximal average output power of 2.2 W is reached with a pump power of 9.8 W. The maximum pulse energy was 16.4 μJ and the average output power slope efficiency is ∼24.8%25. The obtained results demonstrate a laser performance with extended range of high repetition rate and improved stability. © 2017 Astro Ltd.

authors

• Alaniz-Baylón J.
• Durán-Sánchez M.
• Ibarra-Escamilla B.
• Kuzin E.A.
• López Estopier Rosa Elvia
• Posada-Ramírez B.
• Álvarez-Tamayo R.I.

publication date

• 2017-01-01

published in

• Laser Physics  Journal

keywords

• erbium/ytterbium-doped fiber; fiber lasers; multi-wavelength fiber lasers; Q-switched fiber lasers; thulium-doped fiber Cladding (coating); Fiber lasers; Optical pumping; Pulse repetition rate; Q switched lasers; Q switching; Saturable absorbers; Average output power; Double cladding fiber lasers; High repetition rate; Maximal repetitions; Multi wavelength fiber laser; Multi-wavelength lasers; Q-switched fiber lasers; Thulium-doped fibers; Fibers

Digital Object Identifier (DOI)

• 10.1088/1555-6611/aa528f

start page

end page

volume

• 27

issue

• 3