为了获得1.57μm人眼安全激光输出,采用了一种声光调Q激光二极管(LD)端面抽运的Nd∶Gd VO4全固态激光器作为抽运源的人眼安全波长内腔式KTP光学参量振荡器,获得1.57μm人眼安全激光输出。在注入泵浦功率为6.33 W,重复频率为15 k Hz时,1...为了获得1.57μm人眼安全激光输出,采用了一种声光调Q激光二极管(LD)端面抽运的Nd∶Gd VO4全固态激光器作为抽运源的人眼安全波长内腔式KTP光学参量振荡器,获得1.57μm人眼安全激光输出。在注入泵浦功率为6.33 W,重复频率为15 k Hz时,1.57μm激光平均输出功率达到405 m W,此时由二极管注入泵浦光至OPO信号光输出功率的转换效率达6.4%;在重复频率为5 k Hz时,其脉冲宽度约为2 ns,峰值功率达18.9 k W。在重复频率为15 k Hz时,信号光脉冲宽度比消耗后的泵浦光脉冲宽度压缩了13.6倍,比泵浦光脉冲压缩了16倍。实验发现1.57μm的OPO信号光输出功率随脉冲重复频率的增加而有效地增加,此类光参量振荡器有效地压缩了激光脉冲。展开更多
A diode-pumped single frequcncy Tm,Ho：YLF laser operating at an eye-safe wavelength of 2 μm has been developed. Temperature of the laser crystal was controlled at room temperature with a thermoelectric cooler. The l...A diode-pumped single frequcncy Tm,Ho：YLF laser operating at an eye-safe wavelength of 2 μm has been developed. Temperature of the laser crystal was controlled at room temperature with a thermoelectric cooler. The line-width narrowing elements were two solid uncoated fused silica etalons whose thicknesses were 1 and 0.1 mm, respectively. Continuous wave single frequency power of 113 mW was obtained.展开更多
文摘为了获得1.57μm人眼安全激光输出,采用了一种声光调Q激光二极管(LD)端面抽运的Nd∶Gd VO4全固态激光器作为抽运源的人眼安全波长内腔式KTP光学参量振荡器,获得1.57μm人眼安全激光输出。在注入泵浦功率为6.33 W,重复频率为15 k Hz时,1.57μm激光平均输出功率达到405 m W,此时由二极管注入泵浦光至OPO信号光输出功率的转换效率达6.4%;在重复频率为5 k Hz时,其脉冲宽度约为2 ns,峰值功率达18.9 k W。在重复频率为15 k Hz时,信号光脉冲宽度比消耗后的泵浦光脉冲宽度压缩了13.6倍,比泵浦光脉冲压缩了16倍。实验发现1.57μm的OPO信号光输出功率随脉冲重复频率的增加而有效地增加,此类光参量振荡器有效地压缩了激光脉冲。
基金This work was supported by the Scientic Re-search Foundation of Harbin Engineering Univer-sity (HEUF04014)
文摘A diode-pumped single frequcncy Tm,Ho：YLF laser operating at an eye-safe wavelength of 2 μm has been developed. Temperature of the laser crystal was controlled at room temperature with a thermoelectric cooler. The line-width narrowing elements were two solid uncoated fused silica etalons whose thicknesses were 1 and 0.1 mm, respectively. Continuous wave single frequency power of 113 mW was obtained.
