Passively Q-switched ytterbium-doped fiber lasers （YDFLs） incorporating a molybdenum sulfide selenide （MoSSe）-based saturable absorber （SA） are demonstrated. The modulation depth and saturation intensity of the ...Passively Q-switched ytterbium-doped fiber lasers （YDFLs） incorporating a molybdenum sulfide selenide （MoSSe）-based saturable absorber （SA） are demonstrated. The modulation depth and saturation intensity of the MoSSe-based SA are measured to be approximately 25.0% and 0.002 MW/cm^2, respectively, using the twin detector technique. The YDFL＇s output has a center wavelength of 1038.5 nm with a top pulse width and energy of 1.2 μs and 18.9 nJ, respectively, at a pump power of 333 mW. The MoSSe-based SA has a good linear optical response, providing significant opportunity for use in applications over an ultra-broadband spectrum, particularly spectroscopy and biomedical diagnostics.展开更多
基金funding this work under the Grants LRGS (2015) NGOD/UM/KPT, GA010-2014 (ULUNG), and RU0102016
文摘Passively Q-switched ytterbium-doped fiber lasers （YDFLs） incorporating a molybdenum sulfide selenide （MoSSe）-based saturable absorber （SA） are demonstrated. The modulation depth and saturation intensity of the MoSSe-based SA are measured to be approximately 25.0% and 0.002 MW/cm^2, respectively, using the twin detector technique. The YDFL＇s output has a center wavelength of 1038.5 nm with a top pulse width and energy of 1.2 μs and 18.9 nJ, respectively, at a pump power of 333 mW. The MoSSe-based SA has a good linear optical response, providing significant opportunity for use in applications over an ultra-broadband spectrum, particularly spectroscopy and biomedical diagnostics.
