We demonstrate a 1064nm Nd：YAG laser by directly pumping into the upper lasing level with a tunable Ti：sapphire laser. The valid wavelength is demonstrated at 868.3nm, 875.2nm, 883.8nm, and 885.5nm, respectively. To...We demonstrate a 1064nm Nd：YAG laser by directly pumping into the upper lasing level with a tunable Ti：sapphire laser. The valid wavelength is demonstrated at 868.3nm, 875.2nm, 883.8nm, and 885.5nm, respectively. To our knowledge, this is the first time that 1064nm Nd：YAG laser pumped by 875.2nm laser. In addition, laser wavelength at 946 nm is also generated by direct pumping together with traditional pumping.展开更多
We report an efficient pumping scheme which involves a direct excitation of the upper lasing level of a four-level laser in a Nd-doped Caa （NbGa）2-x Ga3O12 （Nd：CNGG） by using a tunable Ti：sapphire, 700-920nm, cw...We report an efficient pumping scheme which involves a direct excitation of the upper lasing level of a four-level laser in a Nd-doped Caa （NbGa）2-x Ga3O12 （Nd：CNGG） by using a tunable Ti：sapphire, 700-920nm, cw pump source. The slope efficiency is improved from 10.5% of the traditional band pumping at 808nm to 21.8% of the direct pumping at 882nm. The influence of pumping wavelength on lasing is discussed. We present a scheme of double pumping for lasing.展开更多
We demonstrate a passively a Z-folded resonator. Using device, we achieve stable cw average output power under cw mode-locked Nd：LuVO4 laser operating on the quasi-three-level at 916nm with a semiconductor saturable ...We demonstrate a passively a Z-folded resonator. Using device, we achieve stable cw average output power under cw mode-locked Nd：LuVO4 laser operating on the quasi-three-level at 916nm with a semiconductor saturable absorber mirror （SESAM） as the passive mode-locking mode locking with 6.7ps pulse duration at repetition rate of 133 MHz and 88mW the pump power of 17.1 W.展开更多
A power-scaled laser operation of Pr:YLi F4(YLF)crystal at 720.9 nm pumped by a 443.6 nm laser diode(LD)module was demonstrated.The 20 W module was used to pump the Pr:YLF crystal,and a maximum output power of 3.03 W ...A power-scaled laser operation of Pr:YLi F4(YLF)crystal at 720.9 nm pumped by a 443.6 nm laser diode(LD)module was demonstrated.The 20 W module was used to pump the Pr:YLF crystal,and a maximum output power of 3.03 W with slope efficiency of 30.04%was obtained.In addition,a 5 W blue LD was also used to pump the Pr:YLF laser,and a maximum output power of 0.72 W was obtained at room temperature.The output power was limited by the wavelength mismatch between the single-emitter LD and the absorption peak of the crystal.展开更多
基金Supported by the National Natural Science Foundation under Grant Nos 60490281 and 60621063, and the National Basic Research Programme of China under Grant No 2007CB815104, and the Knowledge Innovation Project of Chinese Academy of Sciences under Grant No KJXC-SW-W14.
文摘We demonstrate a 1064nm Nd：YAG laser by directly pumping into the upper lasing level with a tunable Ti：sapphire laser. The valid wavelength is demonstrated at 868.3nm, 875.2nm, 883.8nm, and 885.5nm, respectively. To our knowledge, this is the first time that 1064nm Nd：YAG laser pumped by 875.2nm laser. In addition, laser wavelength at 946 nm is also generated by direct pumping together with traditional pumping.
基金Supported by the National Natural Science Foundation of China under Grant Nos 60438020 and 50672050, and the National Basic Research Programme of China under Grant No 2004CB619002.
文摘We report an efficient pumping scheme which involves a direct excitation of the upper lasing level of a four-level laser in a Nd-doped Caa （NbGa）2-x Ga3O12 （Nd：CNGG） by using a tunable Ti：sapphire, 700-920nm, cw pump source. The slope efficiency is improved from 10.5% of the traditional band pumping at 808nm to 21.8% of the direct pumping at 882nm. The influence of pumping wavelength on lasing is discussed. We present a scheme of double pumping for lasing.
基金Supported by the National Natural Science Foundation of China under Grant Nos 60490280, 60621063, 50572054 and 50590401, and the National Basic Research Programme of China under Grant Nos 2007CB815104 and 2004CB619002.
文摘We demonstrate a passively a Z-folded resonator. Using device, we achieve stable cw average output power under cw mode-locked Nd：LuVO4 laser operating on the quasi-three-level at 916nm with a semiconductor saturable absorber mirror （SESAM） as the passive mode-locking mode locking with 6.7ps pulse duration at repetition rate of 133 MHz and 88mW the pump power of 17.1 W.
基金supported by the National Natural Science Foundation of China(Nos.61405126 and 61704112)the Science and Technology Planning Project of Shenzhen Municipality(Nos.ZDSYS201707271014468 and JCYJ20170817094438146)the Educational Commission of Guangdong Province(No.2016KCXTD006).
文摘A power-scaled laser operation of Pr:YLi F4(YLF)crystal at 720.9 nm pumped by a 443.6 nm laser diode(LD)module was demonstrated.The 20 W module was used to pump the Pr:YLF crystal,and a maximum output power of 3.03 W with slope efficiency of 30.04%was obtained.In addition,a 5 W blue LD was also used to pump the Pr:YLF laser,and a maximum output power of 0.72 W was obtained at room temperature.The output power was limited by the wavelength mismatch between the single-emitter LD and the absorption peak of the crystal.
