Abstract
The use of tin disulfide (SnS2) as a candidate material for saturable absorption in nonlinear optical devices is investigated in this article. A dual-wavelength soliton mode-locked fiber laser is demonstrated using a fabricated SnS2 thin film as a saturable absorber within an erbium-doped fiber laser cavity. The laser generates two peaks centered at 1536.7 and 1562.6 nm, with a pulse width of 5.3 ps. The experimental results indicate that the SnS2 thin film has the required absorption characteristics to realize good mode-locked operation. Thus, we confirm that SnS2 has great potential to be used in multiwavelength ultrafast fiber laser applications.
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