Wavelength-tunable Yb-doped passively Q-switching fiber laser based on WS_2 saturable absorber
Optics Express(2015)
Abstract
We have fabricated an Yb-doped passively Q-switching fiber laser based on WS(2) saturable absorber. Both the operating wavelength and the repetition rate can be tuned in a wide range. The operating wavelength can be continuously tuned from 1027 nm to 1065 nm under the Q-switching state at a fixed pump power, while the repetition rate increases from 60.2 kHz to 97.0 kHz by varying pump power at a fixed wavelength of 1048.1 nm. The shortest pulse duration of 1.58 µs was observed. To the best of our knowledge, it's the first demonstration of WS(2)-based passively Q-switching fiber laser with a wide tunable range at 1.0 μm band.
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Key words
fiber laser,wavelength-tunable,yb-doped,q-switching
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