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The processes of transient Raman generation and Raman amplification in KGd(WO4)2 (KGW) crystals pumped by laser pulses with the width of about 150 fs were studied experimentally. For excitation, Bessel beams were used. Gaussian beams of Stokes and laser radiation were used at amplification stage. Raman shifts of 768 or 901 cm-1 were obtained depending on orientation of KGW crystals. For optimal conditions the gain was more than 100. The conversion efficiency of amplifying (pump) radiation into amplified Stokes radiation reached 50 %.

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