Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7128531 | Optics & Laser Technology | 2018 | 5 Pages |
Abstract
A tunable Q-switched thulium-doped fiber laser (TDFL) using a Gallium Selenide (GaSe) based saturable absorber (SA) is proposed and demonstrated for operation in the 2.0â¯Âµm region. The Q-switched TDFL operates from 1960.0â¯nm to 1998.0â¯nm, covering a wavelength range of 38.0â¯nm. The generated output pulses have a repetition rate from 14.9â¯kHz to 40.9â¯kHz and minimum pulse width of 4.9â¯Âµs at the maximum pump power of 126.6â¯mW, as well as a maximum pulse energy of 92.8 nJ. This is, to the author's knowledge, the first successful combination of a TDF and a GaSe based SA to generate tunable Q-switched pulses in 2.0â¯Âµm region.
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Authors
H. Ahmad, S.A. Reduan,