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    • 7. 发明申请
    • DIODE-PUMPED SOLID-STATE THIN SLAB LASER
    • 二极管泵浦固体薄板激光器
    • WO2003043144A2
    • 2003-05-22
    • PCT/US2002/036447
    • 2002-11-13
    • SPECTRA PHYSICS, INC.HODGSON, NormanHOFFMAN, Hanna, J.JORDAN, Wilhelm, A.
    • HODGSON, NormanHOFFMAN, Hanna, J.JORDAN, Wilhelm, A.
    • H01S
    • H01S3/0632H01S3/025H01S3/0407H01S3/042H01S3/08063H01S3/08081H01S3/094084H01S3/0941H01S3/11
    • An edge-pumped solid state thin slab laser apparatus is disclosed that is power scalable to well over 150 W for either multimode or near single transverse mode operation. A slab thickness is selected that is small enough to minimize thermal effects for a straight through beam yet large enough to allow efficient direct coupling of pump light from high power diode array stacks while also keeping the gain to within manageable levels for pulsed operation. Cooling of the slab is provided conductively, preferably by contact with metal blocks of high thermal conductivity. The edge-pumped solid state thin slab laser provides a near-one dimensional temperature gradient and heat flow direction that is perpendicular to the laser signal plane of propagation. The width of the slab is selected so as to maximize pump absorption length for a given laser material and both one and two-sided pumping schemes can be accommodated by the basic slab laser platform, depending on power, mode and beam quality requirements. The output power from the edge-pumped thin slab is generally scalable with slab length and the power available from diode array stacks used to pump the slab. The broad faces of the slab comprising the active medium may be coated with a material that is reflective at the pump wavelength or the slab can be sandwiched between two layers of dielectric of lower index of refraction so as to allow guiding of the pump light for better homogenization of the absorption, and hence the gain profile.
    • 公开了一种边缘泵浦固态薄板激光装置,对于多模式或接近单横模式操作,功率可伸缩至大于150W。 选择的板坯厚度足够小以使直通梁的热效应最小化,但足够大以允许来自高功率二极管阵列堆叠的泵浦光的有效的直接耦合,同时还将增益保持在可管理的水平以用于脉冲操作。 优选通过与导热性高的金属块接触来提供板坯的冷却。 边缘泵浦固态薄板激光器提供垂直于激光信号传播平面的近一维温度梯度和热流方向。 选择板坯的宽度以使给定激光材料的泵吸收长度最大化,并且根据功率,模式和光束质量要求,基板激光平台可以容纳单面和双面泵浦方案。 来自边缘泵送的薄板坯的输出功率通常具有可扩展性,其具有板坯长度和用于泵送板坯的二极管阵列堆叠的功率。 包含活性介质的板的宽面可以涂覆有在泵波长处反射的材料,或者板可以夹在较低折射率的两层电介质之间,以便允许泵浦光引导更好 吸收的均匀化,因此增益曲线。
    • 9. 发明申请
    • DISTRIBUTED COUPLED RESONATOR LASER
    • 分布式耦合共振器激光
    • WO2016125155A1
    • 2016-08-11
    • PCT/IL2016/050119
    • 2016-02-02
    • WI-CHARGE LTD.
    • ALPERT, OrtalRONEN, EitanNAHMIAS, OmerMOR, OriGOLAN, LiorSAGI, Ran
    • H01S3/08
    • H01S3/082H01S3/0604H01S3/08063H01S3/0815H01S3/0816
    • A laser system involving coupled distributed resonators disposed serially, with the lasing gain medium located in the main resonator and the output of that resonator being directed into a free space resonator, such that the main resonator output mirror is effectively the free space resonator. The distributed resonators end mirrors are retroreflectors. Interference occurs between light traveling towards the remote mirror of the free space resonator and light reflected therefrom, generating regions of high reflectivity. The coupling of the free space resonator to the regions of high reflectivity of the free space resonator enables the first resonator to lase efficiently, even though the true reflectivity of the main resonator output mirror outside of those regions is insufficient to enable efficient lasing, if at all. This coupled resonator structure enables lasing to occur with a high field of view and the high gain engendered by the high reflectivity regions.
    • 包括耦合分布式谐振器的激光系统,其串联设置,激光增益介质位于主谐振器中,并且该谐振器的输出被引导到自由空间谐振器中,使得主谐振器输出反射镜实际上是自由空间谐振器。 分布式谐振器端镜是后向反射器。 在朝向自由空间谐振器的远镜反射的光和从其反射的光之间发生干涉,产生高反射率的区域。 自由空间谐振器与自由空间谐振器的高反射率区域的耦合使得第一谐振器能够有效地发光,即使这些区域之外的主谐振器输出反射镜的真实反射率不足以实现有效的激光,如果在 所有。 该耦合谐振器结构使得能够以高视场和由高反射率区域产生的高增益发生激光。
    • 10. 发明申请
    • MINIATURISIERTER LASEROSZILLATOR-VERSTÄRKER
    • 小型化激光振荡器放大器
    • WO2009144248A1
    • 2009-12-03
    • PCT/EP2009/056459
    • 2009-05-27
    • EADS DEUTSCHLAND GMBHPEUSER, PeterPLATZ, Willi
    • PEUSER, PeterPLATZ, Willi
    • H01S3/094H01S3/06H01S3/23G01S17/02F02P23/04
    • H01S3/094084H01S3/0602H01S3/0627H01S3/08063H01S3/094053H01S3/094061H01S3/09415H01S3/113H01S3/2308
    • Die Erfindung betrifft eine miniaturisierte Laserverstärkeranordnung (20) mit: einer optischen Pumpquelle (20) zum Aussenden von Pumpstrahlung (3), einem Laseroszillator (6a), der durch einen einen Teil der Pumpstrahlung (3) zum Aussenden eines Laserstrahles (8) anregbar ist, einem Laserverstärker (24), der sowohl zum Empfangen des Laserstrahls (8) als auch der Pumpstrahlung (3) ausgebildet ist, um den Laserstrahl (8) mittels der Pumpstrahlung zu verstärken, und einer optischen Umlenkeinrichtung (22) zum Leiten von Pumpstrahlung (3) zu dem Laserverstärker (24). Um bei hohem Miniaturisierungsgrad die Leistung zu erhöhen, wird vorgeschla¬ gen, dass die optische Umlenkeinrichtung (22) einen Großteil der Pumpstrahlung (3) an dem Laseroszillator (6a) vorbei zu dem Laserverstärker (24) leitet, um sie dem Laserverstärker (24) zum Verstärken des Laserstrahles (8) zur Verfügung zu stellen.
    • 本发明涉及一种小型化的激光放大器组件(20),包括:一个光泵浦,用于发射泵浦辐射源(20)(3),一个激光振荡器(6a)中,它是由泵浦辐射(3)的一部分,用于发射激光束激发的(8) ,其被设计为既用于接收所述激光束(8)和泵浦辐射的激光放大器(24)(3),以用于引导泵浦辐射通过泵辐射,以及光学偏转装置(22)的装置放大的激光束(8)( 3)向激光放大器(24)。 到具有高度小型化的提高的性能,它是根vorgeschla¬在于,所述光学偏转装置(22)引导泵浦辐射(3)的激光振荡器(6a)中的大部分传递到激光放大器(24),以使其成为激光放大器(24) 以提供用于放大所述激光束(8)。