Efficient self-stimulated Raman output from a laser diode transversely-pumped Nd3+:KGd(WO4)2 laser is presented. The maximum Raman output energy of 340 μJ was obtained at 1.18 μm. The corresponding optical efficiency from diode output to the Raman output was estimated to be 2.7%. Yellow output was also generated by intra-cavity second harmonic generation. Up to >90 μJ was obtained.