Dual-wavelength passively Q-switched Yb-doped fiber laser based on WS2 saturable absorber and intracavity polarization

摘要

We demonstrate a self-starting dual-wavelength ytterbium-doped fiber laser Q-switched by using a solution processed few-layer tungsten disulfide (WS2)-polymer composite saturable absorber, operating at the wavelength of 1030.2 nm and 1034.5 nm, respectively.