Tunable dual wavelength passively mode locked Yb doped fiber laser using SESAM

In this linear-cavity passively mode-locked laser based on semiconductor saturable absorber mirror, an Ybdoped fiber is shared by two branch cavities as gain medium. These two cavities can respectively output single-wavelength pulse with the wavelength tuning range of 1 009.7–1 057.6 nm and 1 011.6–