共查询到20条相似文献,搜索用时 15 毫秒
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A high-power cw end-pumped laser device is demonstrated with a slab crystal of Nd:GdVO4 operating at 1063nm. Diode laser stacks at 880nm are used to pump Nd:GdVO4 into emitting level 4^F3/2. The 149 W output power is presented when the absorbed pump power is 390 W and the optical-to-optieal conversion efficiency is 38.2%. When the output power is 120 W, the M^2 factors are 2.3 in both directions. Additionally, mode overlap inside the resonator is analyzed to explain the beam quality deterioration. 相似文献
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激光二极管侧面泵浦的高效率Nd:YAG激光器 总被引:6,自引:1,他引:5
用准连续激光二极管列阵侧面泵浦Nd:YAG固体激光器,获得39.5mJ的静态输出,器件重复频率为50Hz,效率最高达39.5%,对该器件进行了细致的实验研究,验证了理论计算的正确性,并对实验结果进行了分析。 相似文献
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A conductively cooled, laser diode (LD) end-pumped, injection-seeded single frequency Nd:YAG laser is designed and impleinented. The laser utilizes Nd:YAG rod as gain medium and compact dual-endpumping arrangement using two fiber-coupled LDs with a maximum output of 150 W. The optimized ramp-fire technique is applied to build reliable single longitudinal mode oscillating. The laser is capable of producing a 10-raJ Q-switched pulse with 13-ns pulse width at 1064 nm at a pulse repetition rate of 250 Hz. The output beam qualities M2 of approximately 1.19 and 1.22 in horizontal and vertical directions are detected, respectively. 相似文献
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We report a Q-switched 2-μm Tm:YAG laser based on intracavity-pumped by a 1064-nm Nd:YAG laser operating at room temperature for the first time. An average output power of 5.1W is obtained with the repetition rate of 30kHz and a pulse width of 300ns. In addition, we demonstrate a 12.5-W continuous-wave 2-μm Tm:YAG laser, which is, to our best knowledge, the highest power for intracavity-pumping configuration. 相似文献
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We report, for the first time to our knowledge, a diode-pumped passive Q-switched 946nm Nd:YAG laser by using a GaAs as saturable absorber. The maximum average output power is 1.24 W at an incident pump power of 15 W, corresponding to a slope efficiency of 10%. Laser pulses with pulse duration of 70ns and repetition rate of 330 kHz are generated. 相似文献
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We demonstrate a 511 W laser diode pumped composite Nd:YAG ceramic laser. The optical pumping system is consisted of five laser diode stacked arrays arranged in a pentagonal shape around the ceramic rod whose size is φ6.35×144mm. When the pumping power is 1600 W, the cw laser output up to 511 W at 1064nm can be obtained with a linear piano-piano cavity, and the optical-to-optical efficiency is 31.9%. To our knowledge, this is the highest value of laser output by using a newly invented composite Nd:YAG ceramic rod as the gain medium. 相似文献
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We report an efficient continuous wave(cw) operationof 946nm and 473nm laser beams generated from a diodepumped composte Nd:YAG rod.A very simple compact linear cavity was employed with cavity length of 35mm.A composite Nd:YAG laser rod was used to release thermal effects.The maximum cw output of 3.3W at 946nm was obtained with slope efficiency of 22% at incident pump power of 17.5W.By intracavity doubling with an LBO crystal,as much as 590mW of single-ended blue output at 473nm was achieved with an optical-optical conversion efficiency of 3.4%.The total blue output would be 1.06W with overall conversion efficiency of 6.1% if the lasers emitted in both the directions were taken into account. 相似文献
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报道激光二极管泵浦的掺钕氟磷酸钙固体激光器,该器件在重复频率为100Hz的准连续状态下运行,当耦合输出透过率为8%时,得到31%的斜效率,比较了FAP和YAG这两种介质的激光器的性能,理论分析得出的两者的阈值泵浦功率的相对值与实验结果相一致,并证实FAP是一种有前途的适合激光二极管泵浦的激光介质。 相似文献
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PAVEL Nicolaie 《中国物理快报》2010,27(7):302-302
The paper published in Chin. Phys. Lett. 26 (2009) 124211 reported a Q-switched 2-tim Tm:YAG laser that is intracavity pumped by a Nd: YAG laser with emission at 1.06μm. However, analysis of the experimental setup concludes that only the Nd:YAG laser is Q-switched, and the Tm:YAG laser operates in the free-generation regime. Therefore, Q-switch operation for the 2μm emission wavelength is not realized. 相似文献
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激光二极管泵浦单频连续工作的Nd:YAG激光器 总被引:3,自引:2,他引:3
在国内首次报道了激光二极管泵浦单频连续工作的Nd:YAG激光器,采用扭摆模腔技术方法,在808nm激光二极管连续泵浦下,取得1064nm连续单频工作,输出功率55mW的结果,泵浦阈值276mW,斜率效率23%,线宽小于25MHz(受仪器测量精度限制)。 相似文献
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We demonstrate a high-efficiency continuous-wave Tm: YAG ceramic laser pumped with a Ti:sapphire laser. An output power up to 860mW is obtained under an absorbed pump power of 2.21 W at 785nm, corresponding to a slope efficiency of 42.1% and optical to optical efficiency of 22%. The measured central wavelength is 2012nm. 相似文献
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We report the compact diode-pumped continuous-wave (CW) Nd:LuV04 lasers operated at 916nm and 458nm for the first time. The maximum output power of 780mW at 916nm laser is obtained with a slope efficiency of 9.3%. We generate 50roW of 458nm blue laser employing a type-Ⅰ critical phase-matched LBO crystal. 相似文献
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A compact laser diode-pumped solid-state Nd:LuVO4 acousto-optic Q-switched laser is demonstrated at 916 nm of a quasi-three level for the first time. A pulse width of 130ns is observed when the pulse-repetition frequency is 10 kHz. The laser experiment shows that the Nd:Lu VO4 crystal can be used for efficient diode-pumped Q-switched lasers. 相似文献
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