Very high-efficiency, simple, continuous-wave different material-doped Raman fiber lasers are presented. With 1 W Nd:YVO4 laser at wavelength 1342 nm pumping, single mode output power above 500 mW (optical-to-optical conversion efficiency of 50%) is simulated operating at 14xx nm. Using high-germanium, high-phosphate and high-borate silicate fiber as the gain medium, and using different geometries, output wavelengths of 1420, 1450, 1480, 1495 nm can be produced respectively, which are just adapt to pump the C-band and L-band distributed Raman fiber amplifiers.