5.6-W linearly-polarized fiber laser at 1180 nm employing low-loss ytterbium-doped polarization maintaining solid photonic bandgap fiber

We have demonstrated an output power of 5.6 W at 1180 nm in linearly-polarized fiber laser using a low-loss ytterbium-doped polarization maintaining solid photonic bandgap fiber. A slope efficiency of 31 % has been achieved.