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
We demonstrate a high-emciency mid-infrared picosecond optical parametric oscillator （OPO） based on MgO doped periodically poled lithium niobate （MgO：PPLN） with a laser diode array （LDA） pumped Innoslab amplifi...We demonstrate a high-emciency mid-infrared picosecond optical parametric oscillator （OPO） based on MgO doped periodically poled lithium niobate （MgO：PPLN） with a laser diode array （LDA） pumped Innoslab amplifier as the pumping source. Under a 16 W synchronously pumping power, 4.5 W of idler light at 2896nm is obtained. A tuning range of idler light from 2688nm to 3016nm is achieved, within which the highest optical-optical conversion ettlciency from pump power to OPO output is 35.1%. Moreover, a signal light of -500mW from 1644 to 1700nm with a repetition rate of 233.8 MHz is generated.展开更多
We simulate some laser output patterns observed in our previous experiment employing superposition of Laguerre- Gaussian modes. The rotating pattern is qualitatively analysed from the point of contemporary spatial bur...We simulate some laser output patterns observed in our previous experiment employing superposition of Laguerre- Gaussian modes. The rotating pattern is qualitatively analysed from the point of contemporary spatial burning hole effect of the lasing crystal.展开更多
基金Supported by National Natural Science Foundation of China(6127514261308042+2 种基金51321091)National Key Scientific Instrument and Equipment Development Project(2011YQ030127)China Postdoctoral Science Foundation(014T70633)
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Supported by the National Natural Science Foundation of China under Grant Nos 61275142,61308042,and 51321091the National Key Scientific Instrument and Equipment Development Project under Grant No 2011YQ030127the China Postdoctoral Science Foundation under Grant No 2014T70633
文摘We demonstrate a high-emciency mid-infrared picosecond optical parametric oscillator （OPO） based on MgO doped periodically poled lithium niobate （MgO：PPLN） with a laser diode array （LDA） pumped Innoslab amplifier as the pumping source. Under a 16 W synchronously pumping power, 4.5 W of idler light at 2896nm is obtained. A tuning range of idler light from 2688nm to 3016nm is achieved, within which the highest optical-optical conversion ettlciency from pump power to OPO output is 35.1%. Moreover, a signal light of -500mW from 1644 to 1700nm with a repetition rate of 233.8 MHz is generated.
基金Supported by the National Natural Science Foundation of China under Grant Nos 10534020 and 60478009.
文摘We simulate some laser output patterns observed in our previous experiment employing superposition of Laguerre- Gaussian modes. The rotating pattern is qualitatively analysed from the point of contemporary spatial burning hole effect of the lasing crystal.
