【摘要】 采用腔外单次通过方式,测量了LiIO3晶体在532 nm皮秒脉冲下的受激拉曼散射。实验中观察到3级斯托克斯线(556.07,582.30,611.76 nm)和1级反斯托克斯线(509.57 nm),由此可计算出其频率间隔为820 cm-1。测量了LiIO3晶体各级拉曼散射谱线的阈值和增益系数,受激拉曼散射的整体转换效率达到56%。基于LiIO3晶体实现了皮秒外腔式拉曼激光器的运转,双波长输出总转换效率为27%,最大输出能量1.4 mJ。更多还原

【Abstract】 By the ultra-cavity single-pass configuration,stimulated Raman scattering(SRS) of LiIO3 crystal was realized.When the pump source was a 532 nm picosecond laser,three Stokes lines(556.07,582.30,611.76 nm) and one anti-Stokes line(509.57 nm) were observed,and the frequency shifting was calculated to be 820 cm-1.The SRS thresholds and Raman gain coefficients for different scattering lines were measured,and the total conversion efficiency reached 56%.Picosecond,external resonator Raman laser was realized based on LiIO3 crystal,the total conversion efficiency for dual-wavelength output was 27%,and the largest output energy was 1.4 mJ.更多还原