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    • 15. 发明申请
    • DIODE-PUMPED SOLID-STATE THIN SLAB LASER
    • 二极管泵浦固体薄板激光器
    • WO2004045034A1
    • 2004-05-27
    • PCT/US2003/036744
    • 2003-11-13
    • SPECTRA-PHYSICS, INC.HODGSON, NormanHOFFMAN, Hanna, J.JORDAN, Wilhelm, A.
    • HODGSON, NormanHOFFMAN, Hanna, J.JORDAN, Wilhelm, A.
    • H01S3/091
    • H01S3/063H01S3/025H01S3/0407H01S3/042H01S3/0606H01S3/0612H01S3/0615H01S3/0625H01S3/0632H01S3/08059H01S3/08063H01S3/08081H01S3/09408H01S3/094084H01S3/0941H01S3/117H01S2301/20
    • 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。
    • 16. 发明申请
    • GÜTEGESCHALTETER FESTKÖRPERLASER
    • 品质开关固体激光器
    • WO2015021488A1
    • 2015-02-19
    • PCT/AT2014/000146
    • 2014-07-22
    • KOPF, DanielMONTFORT LASER GMBH
    • KOPF, DanielAGAZZI, Laura
    • H01S3/08H01S3/081H01S3/0941H01S3/115H01S3/02H01S3/06
    • H01S3/08059H01S3/025H01S3/0606H01S3/0615H01S3/08063H01S3/08072H01S3/08095H01S3/0813H01S3/0816H01S3/0817H01S3/0818H01S3/0941H01S3/115
    • Ein gütegeschalteter Festkörperlaser mit einer Spitzenleistung von mehr als 1 MW umfasst einen Resonator, welcher einen ersten und einen zweiten Endspiegel (6, 7) und mit dem Laserstrahl zwischen dem ersten und dem zweiten Endspiegel (6, 7) zusammenwirkende optische Elemente aufweist, die ein gepumptes Lasermedium (1) umfassen, wobei der Laserstrahl vom ersten Endspiegel (6) in eine Richtung reflektiert wird, die zumindest im Wesentlichen parallel sowie gleichgerichtet mit der Richtung ist, in welche der Laserstrahl vom zweiten Endspiegel (7) reflektiert wird. Die mit dem Laserstrahl zwischen dem ersten und dem zweiten Endspiegel (6, 7) zusammenwirkenden optischen Elemente sind derart ausgebildet, dass sie bei einer Propagation eines Bildes (F) ausgehend vom ersten Endspiegel (6) bewirken, dass das Bild (F) nach der Propagation über die zwischen dem ersten und dem zweiten Endspiegel (6, 7) liegenden optischen Elemente und der Reflektion am zweiten Endspiegel (7) in Propagationsrichtung gesehen zumindest im Wesentlichen um 180° gegenüber seiner ursprünglichen in Propagationsrichtung gesehenen Ausrichtung relativ zur Strahlachse (5) um die Strahlachse (5) gedreht und seitenrichtig ist, wobei diese gedrehte und seitenrichtige Übertragung des Bildes (F) nur aufgrund von Reflektionen des Laserstrahls an den zwischen dem ersten und dem zweiten Endspiegel (6, 7) liegenden optischen Elementen und am zweiten Endspiegel (7) erfolgt. Der erste und der zweite Endspiegel (6, 7) sind starr miteinander verbunden.
    • 具有大于1兆瓦的峰值功率的Q开关固态激光器包括谐振器,其包括第一和第二端部的反射镜(6,7),并具有与所述第一和第二端部的反射镜之间的激光束(6,7)协作的光学元件 泵浦激光介质(1),其特征在于,从第一末端反射镜(6)的激光束被反射在平行的方向上和在与所述方向相同的方向上至少基本上,在从所述第二端反射镜(7)的激光束被反射。 的协同操作与第一和第二端部的反射镜之间的激光光束(6,7)的光学元件被形成为使得它们引起当图像传输(F)从第一端部反射镜(6)开始,该图像(F)之后的 传播看到在第一和第二端镜之间的位于(6,7)至少基本上180°相对于其原始取向的相对传播方向在光束轴(5)关于观察的光学元件和反射在传播方向上的第二端部反射镜(7) 旋转所述波束轴(5),并且是真正的到侧,所述旋转和所述图像(F)的横向正确转移仅仅是由于激光束在第一和第二端部的反射镜之间的平躺的反射(6,7)的光学元件和(在第二端镜7 )发生。 在第一和第二端部的反射镜(6,7)刚性地相互连接。
    • 17. 发明申请
    • MULTIPLEXED SPECTROSCOPIC ABSORBANCE FROM CRDS WAVE FORMS
    • 来自CRDS波形的多重光谱吸收
    • WO2014032078A1
    • 2014-03-06
    • PCT/AU2013/000866
    • 2013-08-06
    • NEWSOUTH INNOVATIONS PTY LIMITED
    • HARB, Charles Charbel
    • G01J3/42G01N21/00
    • G01N21/39G01J3/021G01J3/10G01J3/42G01J3/427G01J3/433G01J2003/102G01N21/031G01N21/3504G01N2201/06113H01S3/08063H01S3/105
    • Methods and optical detection systems (200, 300, 800, 900) for generating and processing a real-time time-domain cavity ringdown spectroscopy (CRDS) signal (831, 931) from an absorbing species in an optical detection system (200, 300, 800, 900) having an optical ringdown cavity (200, 300) are disclosed. The optical ringdown cavity (200, 300) is adapted for accepting a sample of an absorbing species. One or more modulated light signals (241,243,245,341) are generated using one or more light sources (240, 242, 244, 340). The light source(s) (240, 242, 244, 340) is pulsed at a specified pulse rate(s). The modulated light signal(s) (241,243,245, 341) is resonated using the optical ringdown cavity (200, 300) comprising a plurality of mirrors(220, 230), or sets of mirrors (320, 330), to produce the CRDS signal (831, 931). The reflectivity of the mirrors (220, 230), or sets of mirrors (320, 330), is dependent upon the pulse rate of the modulated light signals (241,243,245,341). Different beamlines (212, 214, 216, 312, 314, 316) are established by the modulated light signal(s) (241,243,245, 341) and the mirrors (220, 230, 320, 330) interacting with the absorbing species sample.
    • 用于从光学检测系统(200,300)中的吸收物质生成和处理实时时域衰减光谱(CRDS)信号(831,931)的方法和光学检测系统(200,300,800,900) ,800,900),其具有光学衰减腔(200,300)。 光学衰减腔(200,300)适于接收吸收物质的样品。 使用一个或多个光源(240,242,244,340)产生一个或多个调制光信号(241,243,245,341)。 光源(240,242,244,340)以指定的脉冲速率脉冲。 调制光信号(241,243,245,341)使用包括多个反射镜(220,230)或一组反射镜(320,330)的光学环形空腔(200,300)进行谐振,以产生CRDS信号 (831,931)。 反射镜(220,230)或反射镜组(320,330)的反射率取决于调制光信号的脉冲速率(241,243,245,341)。 通过调制光信号(241,243,245,341)和与吸收物质样品相互作用的反射镜(220,230,320,330)建立不同的光束线(212,214,216,312,314,316)。
    • 18. 发明申请
    • LASER APPARATUS AND PHOTOACOUSTIC APPARATUS
    • 激光装置和光电装置
    • WO2012140864A1
    • 2012-10-18
    • PCT/JP2012/002463
    • 2012-04-09
    • CANON KABUSHIKI KAISHAICHIHARA, ShigeruKOBAYASHI, Shuichi
    • ICHIHARA, ShigeruKOBAYASHI, Shuichi
    • H01S3/105H01S3/08
    • H01S3/105A61B5/0095H01S3/08063H01S3/08068H01S3/08072H01S3/1625H01S3/1636
    • A laser apparatus (301) includes a laser medium (302); a light source that radiates light to the laser medium, thereby exciting the laser medium and raising the temperature thereof; a reflecting unit (304) having a first plane that reflects light within a predetermined wavelength range from light generated by excitation of the laser medium; and an output mirror (303) disposed opposite the reflecting unit, with the laser medium (302) being interposed therebetween, and causing laser oscillation by inducing resonance of the light within a predetermined wavelength range between the first plane and the output mirror. The reflecting unit (304) is configured to be movable between a position in which light resonance is induced between the output mirror and the first plane and the laser apparatus is set to an oscillation state and a position in which the laser apparatus is set to a non - oscillation state. For example, the reflecting unit (304) has an AR-coated portion (305) and two portions (306, 307) with high reflectivity at different wavelengths to allow for wavelength tuning.
    • 激光装置(301)包括激光介质(302); 向激光介质照射光的光源,从而激发激光介质并提高其温度; 反射单元,具有从激光介质的激发产生的光反射预定波长范围内的光的第一平面; 以及与反射单元相对设置的输出镜(303),激光介质(302)插入其间,并且通过在第一平面和输出反射镜之间的预定波长范围内引起光的共振来引起激光振荡。 反射单元(304)被配置为可以在输出反射镜和第一平面之间感应到光谐振的位置和激光装置被设置为振荡状态的位置和激光装置被设置为 非振荡状态。 例如,反射单元(304)具有在不同波长处具有高反射率的AR涂覆部分(305)和两个部分(306,307),以允许波长调谐。