Continuous-wave Raman oscillation for a Nd^3+:YAG intracavity fiber laser

Continuous-wave Raman oscillation characteristics of a Nd3+:YAG intracavity fiber laser are described. The laser has two threshold levels: one is for the oscillation of a 1.064-μm Nd3+:YAG laser, and the other is for a fiber Raman laser oscillation of 1.122 μm. The oscillation of the fiber Raman laser is produced with the aid of optical pumping resulting from the oscillation of the 1.064-μm YAG laser, i.e., the optical pumping gain medium and the fiber Raman gain medium share a common laser cavity. For a 330-m-long single-mode fiber resonator configuration, the output power of the fiber Raman laser is about 0.32 mW, which corresponds to about 30% of the 1.064-μm laser power.