Second Harmonic Generation Using an All-Fiber Q-Switched Yb-Doped Fiber Laser and MgO:c-PPLN

<table>SEM image of the cross-section of
the twin-core fiber coated with lower index of polymer. The left core is for
pumping and the right one has a Yb-doped core.</table>

Advances in OptoElectronics

fig2

Figure 2

Figure 2: Second Harmonic Generation Using an All-Fiber Q-Switched Yb-Doped Fiber Laser and MgO:c-PPLN 