PreciLasers offers 1120-1700 nm Raman fiber amplifiers to overcome the limited emission spectral region of the rare-earth-doped fiber amplifiers. The maximum output power can reach up to 30 W for single-frequency operation. Meanwhile, the amplifiers use all-polarization-maintaining design, which makes them compact in size and long-term stable. They are designed for the applications like laser atomic cooling and laser spectroscopy etc.