Raman Gain Coefficients of Nd:Lu_xY_1?xVO₄ Crystals

By using a pulse laser at 532.36 nm as the incident light, stimulated Raman scattering (SRS) of a series of a-cut and c-cut Nd:Lu_xY_1?xVO₄ (x=0, 0.10, 0.26, 0.41, 0.61, 0.67, 0.80) crystals is investigated. For the π-polarization (E||c), the gain coefficient reduced as x value increased. For the σ-polarization (E||a), the Raman gain of all of the mixed crystals is larger than the pure Nd:YVO₄, and the maximum value is obtained from the Nd:Lu_0.1Y_0.9VO₄ crystal. Such results are also supported by the measurement of spontaneous Raman scattering spectra.