A passively Q-switched Nd YAG eye-safe laser operating at 1444nm with graphene as a saturable absorber is reported. Under a pump power of 23.7W, the maximum average output power, minimum pulse width, pulse repetition ...A passively Q-switched Nd YAG eye-safe laser operating at 1444nm with graphene as a saturable absorber is reported. Under a pump power of 23.7W, the maximum average output power, minimum pulse width, pulse repetition rate and single pulse energy are 411mW, 560ns, 85 kHz, and 4.83μJ, respectively. This is the first demonstration of a Nd： YAG eye-safe laser passively Q-switched by graphene.展开更多
A diode-pumped actively Q-switched Raman laser is demonstrated, with YV04 employed as Raman active medium, based on a ceramic Nd：YAG laser operating at 1444nm. The first-stokes Raman generation at 1657nm is achieved....A diode-pumped actively Q-switched Raman laser is demonstrated, with YV04 employed as Raman active medium, based on a ceramic Nd：YAG laser operating at 1444nm. The first-stokes Raman generation at 1657nm is achieved. A maximum output power of as high as 612mW is obtained under a pump power of 20. 7 W and at a pulse repetition frequency rate of 20kHz, corresponding to an optical-to-optical conversion efficiency of 3%.展开更多
An efficient dual-wavelength laser-diode-pumped Nd:YAG ceramic laser operating at 1112 and 1116 nm is demonstrated.We obtain a maximum total output power of 3.43 W including a 1.77 W 1112 nm component and a 1.66 W 111...An efficient dual-wavelength laser-diode-pumped Nd:YAG ceramic laser operating at 1112 and 1116 nm is demonstrated.We obtain a maximum total output power of 3.43 W including a 1.77 W 1112 nm component and a 1.66 W 1116 nm component under a pump power of 16.1 W,corresponding to a slope efficiency of 23.7%and a total optical-to-optical efficiency of 21.3%.展开更多
A novel Nd, La：SrF_2 disordered crystal is prepared, and its continuous-wave wavelength tuning operation is performed for the first time. Employing a surface plasmon resonance（SPR） based gold nanobipyramids（G-NBPs...A novel Nd, La：SrF_2 disordered crystal is prepared, and its continuous-wave wavelength tuning operation is performed for the first time. Employing a surface plasmon resonance（SPR） based gold nanobipyramids（G-NBPs） saturable absorber,we obtain a compact diode-pumped passively Q-switched Nd, La：SrF_2 laser. The stable Q-switched pulse operates with the shortest pulse duration of 1.15 μs and the maximum repetition rate of 41 k Hz. The corresponding single pulse energy is 2.24 μJ. The results indicate that G-NBPs could be a promising saturable absorber applied to the diode-pumped solid state lasers（DPSSLs）.展开更多
基金Supported by the Foundation of the State Key Laboratory of Crystal Material of Shandong University under Grant No KFll01, the Foundation of Shandong University under Grant No 1170072613176, the National Natural Science Foundation of China under Grant Nos 11004122 and 11204160, the Special Grade of China Postdoctoral Science Foundation under Grant No 201104627, and the Independent Innovation Foundation of Shandong University under Grant No 2011GN058.
文摘A passively Q-switched Nd YAG eye-safe laser operating at 1444nm with graphene as a saturable absorber is reported. Under a pump power of 23.7W, the maximum average output power, minimum pulse width, pulse repetition rate and single pulse energy are 411mW, 560ns, 85 kHz, and 4.83μJ, respectively. This is the first demonstration of a Nd： YAG eye-safe laser passively Q-switched by graphene.
基金Supported by the Foundation of the State Key Laboratory of Crystal Material of Shandong University under Grant No KF1101the Foundation of Shandong University under Grant No 1170072613176+2 种基金the National Natural Science Foundation of China under Grant Nos 11004122 and 11204160the Special Grade of China Postdoctoral Science Foundation under Grant No 201104627the Independent Innovation Foundation of Shandong University under Grant No 2011GN058
文摘A diode-pumped actively Q-switched Raman laser is demonstrated, with YV04 employed as Raman active medium, based on a ceramic Nd：YAG laser operating at 1444nm. The first-stokes Raman generation at 1657nm is achieved. A maximum output power of as high as 612mW is obtained under a pump power of 20. 7 W and at a pulse repetition frequency rate of 20kHz, corresponding to an optical-to-optical conversion efficiency of 3%.
基金Supported by the Fund of Key Laboratory of Crystal Material of Shandong University under Grant No KF1101the Fund of Shandong University under Grant No 11170072613176.
文摘An efficient dual-wavelength laser-diode-pumped Nd:YAG ceramic laser operating at 1112 and 1116 nm is demonstrated.We obtain a maximum total output power of 3.43 W including a 1.77 W 1112 nm component and a 1.66 W 1116 nm component under a pump power of 16.1 W,corresponding to a slope efficiency of 23.7%and a total optical-to-optical efficiency of 21.3%.
基金Project supported by the National Natural Science Foundation of China(Grant Nos.61475089,51432007,and 61422511)
文摘A novel Nd, La：SrF_2 disordered crystal is prepared, and its continuous-wave wavelength tuning operation is performed for the first time. Employing a surface plasmon resonance（SPR） based gold nanobipyramids（G-NBPs） saturable absorber,we obtain a compact diode-pumped passively Q-switched Nd, La：SrF_2 laser. The stable Q-switched pulse operates with the shortest pulse duration of 1.15 μs and the maximum repetition rate of 41 k Hz. The corresponding single pulse energy is 2.24 μJ. The results indicate that G-NBPs could be a promising saturable absorber applied to the diode-pumped solid state lasers（DPSSLs）.
