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1.
We report the tunable mid-infrared generation with a periodically poled LinbO3(PPLN).Using an all-solid-state pumped Nd:YVO4 laser as the pump source and a PPLN nonlinear crystal with grating periods of 28.2-30.8μm,we have achieved wavelength conversion in the 2.90-4.05μm spectral range by period tuning.The use of confocal cavity design has brought a compact,all-solid-state configuration with an average output powers of idler up to -200mW.The maximum power of 277mW was obtained at the wavelength of 3.35um.  相似文献   
2.
We report a nanosecond Nd:YVO_4-pumped optical parametric oscillator (OPO) based on periodically poled LiNbO_3 (PPLN). Tuning is achieved in this experiment by varying the temperature and period of the PPLN. The design of double-pass singly resonant oscillator (DSRO) and confocal cavity enables the OPO threshold to be lowered considerably, resulting in a simple, compact, all-solid-state configuration with the mid-infrared idler powers of up to 466mW at 3.41μm.  相似文献   
3.
In this paper, we report a high peak power passively Q-switched laser-diode-end-pumped Nd:YVO4/Cr4+:YAG laser polarized along the C axis, generating 4.23-W average power and 18-kW peak power (144-μJ pulse power) with 8.0-ns time duration (29.4-kHz repetition rate) at 1064 nm while the pump power is 21.2 W.  相似文献   
4.
封面说明     
姚爱云 《物理》2004,33(4):281-281
  相似文献   
5.
In this paper, we report a high peak power passively Q-switched laser-diode-end-pumped Nd:YVO_4/Cr~(4+):YAG laser polarized along the C axis, generating 4.23-W average power and 18-kW peak power (144-μJ pulse power) with 8.0-ns time duration (29.4-kHz repetition rate) at 1064 nm while the pump power is 21.2 W.  相似文献   
6.
We report a new way, i.e. double-end-pumping, to extend the stability range of a laser resonator, in advantage of making the thermal loading be effectively divided between the ends of the laser crystal to reduce the thermal effect, thus to extend the stability range. Using this new way, we experimentally obtained a 2.7-W cw laser source at 671 nm by intracavity frequency doubling of 1342nm ofa Nd:YVO4 laser based on the nonlinear crystal LIB3O5. The maximum pump power is 28 W, which is higher than 13 W of the single-end-pumping.  相似文献   
7.
An efficient acousto-optically Q-switched extracavity frequency-doubled 532nm laser based on a diode-end-pumped master oscillator power amplifier (MOPA) is demonstrated. With a type I non-critlcally phase-matched LBO, 26W of average power at 532nm in a near diffraction limited mode at a repetition rate of 30kHz was generated under 43W pump power of 1064nm Nd:YVO4 laser, which correspond to a frequency-doubling conversion efficiency of 60%.  相似文献   
8.
研制了一台高光束质量的全固态Nd∶YAG激光器 ,采用KTP腔外倍频 ,获得了大于 2 0W准连续绿光输出 ,峰功率可达 1.15× 10 5W ,光束质量因子M2 值约为 4。  相似文献   
9.
本文报道了由双端泵浦Nd:YVO4晶体产生1342nm基频光,经过非线性晶体LBO腔内产生的671nm的红光光源。泵浦功率19.5W时,产生的671nm的红光平均功率是2.9W。光光转换效率为14.9%。分析了最近泵浦光斑尺寸,最佳聚焦位置,减少热透镜效应对输出功率的影响。双端泵浦结构和准连续运行模式大大减弱了热透镜效应。  相似文献   
10.
全固态三基色激光大屏幕投影显示实验   总被引:6,自引:0,他引:6  
三基色激光显示具有亮度高、色彩鲜艳、清晰度高、功耗低等优点,文章介绍了激光显示原理,并报道了用全固态非线性频率转换技术获得波长分别为671nm,532nm,和473nm的红绿蓝三基色激光,在国内首次实现全固态激光全色投影显示实验,同时提出了今后全固态激光显示的发展方向。  相似文献   
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