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报道了一种LD端面抽运Nd:YAG陶瓷、KTP腔内倍频的全固态连续波绿光激光器.当抽运功率为21.6 W时,1064 nm基频输出达到11.3 W,光—光转换效率为52.3%.采用Ⅱ类切割的KTP晶体作为腔内倍频介质,在直腔结构下获得了最大功率为1.86 W的532 nm绿光输出,光—光转换效率为7%.输出光斑具有高斯型强度分布,1 W输出时的M2因子约为1.7.
关键词:
全固态绿光激光器
Nd:YAG陶瓷
KTP倍频
直腔 相似文献
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LD泵浦Nd:YAG/Cr:YAG腔外频率变换高功率紫外激光器 总被引:8,自引:4,他引:4
用KTP晶体对激光二极管端面泵浦的Nd:YAG晶体;Cr:YAG被动调Q产生的1064nm脉冲激光器进行腔外倍频,用BBO晶体四倍频产生266 nm紫外激光.用15 W的LD阵列;当LD泵浦功率为12 W的情况下;红外(1064 μm)调Q平均输出功率为2.2 W;脉冲序列周期为40 μs;脉宽为18ns;峰值功率高达4.9kW.采用KTP腔外二倍频;532nm的绿光输出平均功率为850mW;用BBO腔外四倍频;266nm的紫外光输出平均功率高达215mW,绿光-紫外光光转换效率为25.2%, 红外到紫外总的转换效率为9.8%. 相似文献
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用KTP晶体对激光二极管端面泵浦的Nd∶YAG晶体,Cr∶YAG被动调Q产生的1064 nm脉冲激光器进行腔外倍频,用BBO晶体四倍频产生266 nm紫外激光.用15 W的LD阵列,当LD泵浦功率为12 W的情况下,红外(1064μm)调Q平均输出功率为2.2 W,脉冲序列周期为40μs,脉宽为18 ns,峰值功率高达4.9 kW.采用KTP腔外二倍频,532 nm的绿光输出平均功率为850 mW;用BBO腔外四倍频,266 nm的紫外光输出平均功率高达215 mW,绿光-紫外光光转换效率为25.2%,红外到紫外总的转换效率为9.8%. 相似文献
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被动调Q产生1064 nm脉冲激光在腔外聚焦后入射到KTP中,产生532 nm的倍频光,再通过LBO和频产生355 nm激光。当抽运功率为3.4 W时,基频光调Q输出平均功率为350 mW,峰值功率达3.5 kW。腔外二倍频532 nm绿光输出平均功率为110 mW,用Ⅰ类相位匹配LBO晶体和频获得36 mW的355 nm的紫外激光输出,三倍频效率(1064~355 nm)达到10.2%。由于Cr∶YAG晶体达到饱和吸收后,会呈现出各向异性的特征,对基频光的偏振状态有很大影响。实验中必须合理放置复合晶体,使基频光的偏振状态为近似线偏振以提高转换效率。 相似文献
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利用Nd∶YAG/Cr∶YAG/YAG键合晶体,建立了具有高平均输出功率的LD侧面泵浦被动调Q激光器系统.当Cr∶YAG的初始透过率为85%、最大泵浦光功率为187.5 W时,1 064nm激光的平均输出功率为83.68W.通过KTP晶体进行倍频,在最大泵浦光功率下,产生了27.2W532nm绿光激光脉冲,同时脉冲宽度和重复频率分别为210ns和21.2kHz;绿光单脉冲能量和峰值功率分别为1.28mJ和6.1kW;泵浦光(808nm)到倍频光(532nm)的光-光效率为14.5%. 相似文献
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激光二极管抽运Nd:YVO4/LBO腔内倍频5.3W连续波激光器 总被引:1,自引:0,他引:1
报道了激光二极管双向抽运Nd:YVO4晶体,LBO腔内倍频,最大输出功率为5.3W的连续波绿光激光器,采用LBO晶体Ⅰ类非临界相位匹配(NCPM),温度调谐,当抽运光功率为20W时,获得了5.3W TEM00模532nm绿光输出,光-光转换效率达26.5%,并对绿光模式及输出功率随LBO晶体温度的变化关系进行了测量,与理论结果符合较好。 相似文献
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PAN Feng 《中国物理C(英文版)》1991,15(2):178-186
VCS representantions of SO5 SU2 SU2 U1 U1 and SO5 U1 U1 are discussed.Reduced matrix elements for SO5 SU2 SU2 are derived.The multiplicity of a weight for SO5 is determined by using the K-matrix technique. 相似文献
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基于对海洋进行快速大面积探测或对潜通讯的需要.开始了对S2分子激光器的研制。S2分子激光器与其它几种激光器相比具有明显的优势.介绍了S2分子的获得方式、S2分子的势能曲线及特点、S2分子光谱特性等。经过反复论证及试验,取得了阶段性研究成果,为横向脉冲快放电小型S2分子激光器的研制及实现激光振荡奠定了坚实的基础。 相似文献
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Charge trapping characteristics of the metal-insulator-silicon (MIS) capacitors with Si02/HfO2//A12O3 stacked dielectrics are investigated for memory applications'. A capacitance-voltage hysteresis memory window as large as 7.3 V is achieved for the gate voltage sweeping of ±12 V, and a fiat-band voltage shift of 1.5 V is observed in terms of programming under 5 V and I ms. Furthermore, the time- and voltage-dependent charge trapping characteristics are also demonstrated, the former is related to charge trapping saturation and the latter is ascribed to variable tunnelling barriers for electron injecting and discharging under different voltages. 相似文献
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PAN Feng 《中国物理C(英文版)》1991,15(1):80-86
In this paper,Vector Coherent State (VCS) representations of SU3 in U1 U1 basis are discussed.Orthonormal basis vectors for SU3 U1 U1 are derived and the multiplicity of a weight for SU3 U1 U1 is determined by using K-matrix technique. 相似文献
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A Two-Parameter Deformed Two-Dimensional Interacting Boson Model With Uqp(U3)Uqp(U2)Uqp(SO2) Symmetry 下载免费PDF全文
A two-parameter deformed two-dimensional interacting boson model with Uqp(U3) Uqp(U2) Uqp(SO2)symmetry is constructed.It is found that the energy spectrum and transition matrix elements depend very sensitively on the second parameter of deformation. 相似文献
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Mixing between the 23S1 and 13D1 Ds is studied within the 3P0 model. If mixing between these two 1- states exists, Ds1*(2700)± and DsJ*(2860)± could be interpreted as the two orthogonal mixed states with mixing angle θ≈ -80° in the case of a special β for each meson. However, in the case of a universal β for all mesons, Ds1*(2700)± could be interpreted as the mixed state of 23S1 and 13D1 with mixing angle 12° < θ < 21° but DsJ*(2860)± seems difficult to interpret as the orthogonal partner of Ds1*(2700)±. 相似文献
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We report a thin film electroluminescent device with a three-layer structure (diamond/CeF3/SiO2 films), which has a luminance of 1.5 cd/m^2 at dc voltage 215 V. The electroluminescence spectrum at room temperature shows that the main peaks locate at 527 and 593nm, which are attributed to isolated emission centers of Ce^3+ ions. 相似文献
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Ferroelectric Properties of Bi3.25La0.75Ti3O12 Thin Films Crystallized inDifferent N2/O2 Ambients 下载免费PDF全文
Bi3.25La0.75 Ti3O12 (BLT) ferroelectric thin films are deposited by sol-gel method and annealed for crystallizaion in total l eccm N2/02 mixed gas with various ratio at 750℃ for 30rain. The effect of crystallization ambient on the structural and ferroelectric properties of the BLT films is studied. The growth direction and grain size of BLT film are revealed to affect ferroeleetric properties. Alter the BLT film is annealed in 20%O2, the largest P~ value is obtained, which is ascribed to an increase of random orientation and large grain size. The fatigue property is improved with the concentration of oxygen in the ambient increasing, which is ascribed to annealing in the ambient with high concentrated oxygen adequately decreasing the defects related to lack of oxygen. 相似文献
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大功率TEA CO2激光系统的电磁兼容设计 总被引:1,自引:0,他引:1
大功率TEA CO2激光系统工作时产生的强电磁干扰主要来源于激光主放电回路、脉冲火花开关和电源。这种强电磁脉冲干扰对激光系统内部及相关外部设备的电子系统具有很大的干扰和破坏作用。对大功率TEA CO2激光系统的电磁干扰进行了分析计算,在此基础上对大功率TEA CO2激光系统进行了EMC设计。硬件设计手段分别采用了对电磁干扰源和控制子系统进行屏蔽、系统合理布局与布线、滤波隔离,软件采用了数据冗余纠错、冗余化操作和数据鉴别等抑噪和纠错技术,有效地抑制了干扰电磁波在系统内外的传播,解决了大功率TEA CO2激光系统EMC问题。结果表明,对电磁干扰源和控制子系统进行屏蔽,系统合理布局与布线、滤波隔离等措施,是抑制电磁干扰,保证激光控制子系统硬件不受损坏的主要手段。软件抗干扰,是硬件抑制电磁干扰措施的补充和延伸,能使激光系统具有很高的可靠性。 相似文献