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    Dielectric coupled CO2 slab laser
    1.
    发明申请
    Dielectric coupled CO2 slab laser 有权
    介质耦合CO2平板激光器

    公开(公告)号：US20060029116A1

    公开(公告)日：2006-02-09

    申请号：US10912507

    申请日：2004-08-05

    申请人： Christian Shackleton ,  Phillip Gardner ,  Anthony DeMaria ,  Vernon Seguin ,  John Kennedy

    发明人： Christian Shackleton ,  Phillip Gardner ,  Anthony DeMaria ,  Vernon Seguin ,  John Kennedy

    IPC分类号： H01S3/22

    CPC分类号： H01S3/0315 ,  H01S3/0388 ,  H01S3/0407 ,  H01S3/041 ,  H01S3/09705 ,  H01S3/0971 ,  H01S3/2232

    摘要： A slab laser includes two elongated electrodes arranged spaced apart and face-to-face. Either one or two slabs of a solid dielectric material extend along the length of the electrodes between the electrodes. A discharge gap is formed either between one of the electrodes and one dielectric slab, or between two dielectric slabs. The discharge gap is filled with lasing gas. A pair of mirrors is configured and arranged to define a laser resonator extending through the gap. An RF potential is applied across the electrodes creating a gas discharge in the gap, and causing laser radiation to circulate in the resonator. Inserting dielectric material between the electrodes increases the resistance-capacitance (RC) time constant of the discharge structure compared with the RC time constant in the absence of dielectric material. This hinders the formation of arcs in the discharge, which enables the laser to operate with higher excitation power, higher lasing gas pressure, and higher output power than would be possible without the dielectric inserts.

    摘要翻译： 平板激光器包括间隔开并且面对面布置的两个细长电极。 一个或两个固体电介质材料板沿电极的电极长度延伸。 在一个电极和一个电介质板之间或两个电介质板之间形成放电间隙。 放电间隙充满激光气体。 一对反射镜被配置和布置成限定延伸穿过间隙的激光谐振器。 在电极上施加RF电位，在间隙中产生气体放电，并使激光辐射在谐振器中循环。 在不存在电介质材料的情况下，在电极间插入电介质材料会增加放电结构的电阻 - 电容（RC）时间常数。 这阻碍了放电中的电弧形成，这使得激光器能够在没有电介质插入件的情况下以更高的激发功率，更高的激光气体压力和更高的输出功率运行。

    Dielectric coupled CO2 slab laser
    2.
    发明申请
    Dielectric coupled CO2 slab laser 有权
    介质耦合CO2平板激光器

    公开(公告)号：US20050175054A1

    公开(公告)日：2005-08-11

    申请号：US10869964

    申请日：2004-06-17

    申请人： Christian Shackleton ,  Phillip Gardner ,  Anthony DeMaria ,  Vernon Seguin ,  John Kennedy

    发明人： Christian Shackleton ,  Phillip Gardner ,  Anthony DeMaria ,  Vernon Seguin ,  John Kennedy

    IPC分类号： H01S3/03 ,  H01S3/038 ,  H01S3/04 ,  H01S3/041 ,  H01S3/0975 ,  H01S3/22 ,  H01S3/223

    CPC分类号： H01S3/2232 ,  H01S3/0315 ,  H01S3/038 ,  H01S3/0385 ,  H01S3/0407 ,  H01S3/041 ,  H01S3/0975

    摘要： An slab CO2 laser includes spaced-apart elongated slab electrodes. A lasing gas fills a discharge gap between the electrodes. An RF power supply is connected across the electrodes and sustains an electrical discharge in the lasing gas in the discharge gap. Either one or two ceramic inserts occupy a portion of width of the electrodes and in contact with the electrodes. A discharge gap is formed between the portions of the width of the electrodes not occupied by the insert or inserts. Provision of the ceramic insert or inserts increases the resistance-capacitance (RC) time constant of the electrode impedance by increasing the capacitive component of the time constant. This hinders the formation of arcs in the discharge, which, in turn enables the inventive laser to operate with higher excitation power or higher lasing-gas pressure than would be possible without the dielectric insert. The ceramic insert also decreases the difference in impedance of the electrodes with and without a discharge. This leads to a better-behaved discharge, and a discharge that is easier to light.

    摘要翻译： 平板CO2激光器包括间隔开的细长板状电极。 激光气体填充电极之间的放电间隙。 RF电源跨越电极连接，并且在放电间隙中的激光气体中保持放电。 一个或两个陶瓷插入件占据电极宽度的一部分并与电极接触。 在未被插入物或插入物占据的电极的宽度部分之间形成放电间隙。 提供陶瓷插件或插件通过增加时间常数的电容分量来增加电极阻抗的电阻 - 电容（RC）时间常数。 这阻碍了放电中的电弧的形成，这又使得本发明的激光器能够在没有电介质插入件的情况下以更高的激发功率或更高的激光气体压力运行。 陶瓷插入件还减少了具有和没有放电的电极的阻抗差异。 这导致更好的放电，并且更容易点亮的放电。

    Pulsed CO2 laser including an optical damage resistant electro-optical switching arrangement
    3.
    发明授权
    Pulsed CO2 laser including an optical damage resistant electro-optical switching arrangement 失效
    脉冲CO2激光器包括光学损伤电光切换装置

    公开(公告)号：US07039079B2

    公开(公告)日：2006-05-02

    申请号：US10389081

    申请日：2003-03-14

    申请人： Vernon Seguin ,  Leon Newman ,  John Kennedy ,  Joel Fontanella ,  Anthony DeMaria

    发明人： Vernon Seguin ,  Leon Newman ,  John Kennedy ,  Joel Fontanella ,  Anthony DeMaria

    IPC分类号： H01S3/10

    CPC分类号： H01S3/2232 ,  H01S3/0315 ,  H01S3/09702 ,  H01S3/1075 ,  H01S3/1103 ,  H01S3/115

    摘要： A laser includes a gain medium located in a laser resonator. The gain medium generates plane polarized radiation plane polarized in a first polarization orientation. An electro-optical switch is located in the resonator. When the switch is activated the polarization plane of the laser radiation is rotated to a second orientation after making a forward and a reverse pass through the optical switch. When the switch is deactivated, the polarization orientation of the forward and reverse transmitted laser radiation remains about the same. A polarization selective device is located in the resonator between the electro-optical switch and the gain medium. The polarization selective device is arranged to permit circulation in the resonator of laser radiation in the first polarization orientation, and to restrict circulation of laser radiation in the second polarization orientation. The Gain medium is energized and the switch activated to allow energy to build in the gain medium. The switch is then deactivated to allow laser radiation to circulate in the resonator and deliver a laser pulse. A method of activating the switch by a sequence of DC pulses is disclosed.

    摘要翻译： 激光器包括位于激光谐振器中的增益介质。 增益介质产生以第一极化取向偏振的平面偏振辐射平面。 电光开关位于谐振器中。 当开关被激活时，激光辐射的偏振平面在通过光学开关的正向和反向通过之后被旋转到第二取向。 当开关被禁用时，正向和反向传输的激光辐射的偏振方向保持大致相同。 偏振选择装置位于电光开关和增益介质之间的谐振器中。 偏振选择装置被布置成允许在第一极化取向中的激光辐射的谐振器中循环，并且限制第二偏振取向中的激光辐射的循环。 增益介质通电，并且开关被激活以允许在增益介质中建立能量。 然后禁用开关以允许激光辐射在谐振器中循环并传递激光脉冲。 公开了通过一系列DC脉冲来激活开关的方法。

    Pulsed CO2 laser including an optical damage resistant electro-optical switching arrangement
    4.
    发明授权
    Pulsed CO2 laser including an optical damage resistant electro-optical switching arrangement 有权
    脉冲CO2激光器包括光学损伤电光切换装置

    公开(公告)号：US07113529B2

    公开(公告)日：2006-09-26

    申请号：US10389158

    申请日：2003-03-14

    申请人： Vernon Seguin ,  Leon Newman ,  R. Russel Austin ,  Anthony DeMaria

    发明人： Vernon Seguin ,  Leon Newman ,  R. Russel Austin ,  Anthony DeMaria

    IPC分类号： G02H6/26

    CPC分类号： H01S3/2232 ,  H01S3/0346 ,  H01S3/09702 ,  H01S3/106 ,  H01S3/115

    摘要： An electro-optical switch includes an optical assembly arranged to transmit laser-radiation. The optical assembly comprises an active optical crystal. On one of two opposite surfaces of the crystal is an optical window formed from a material having a refractive index lower than the material of the crystal. Heat deposited, as a result of transmission of the laser-radiation, at the surface of the crystal in contact with the widow is transferred to the window, thereby reducing the potential for optical damage to the crystal surface. The window is sufficiently thick that it has an odd integer multiple of quarter-wavelengths optical thickness at a wavelength about equal to a wavelength of the laser-radiation, thereby behaving as an antireflection device for the crystal at that wavelength. In one embodiment of the optical assembly, the active optical crystal is a cadmium telluride crystal and the window is formed from cesium bromide.

    摘要翻译： 电光开关包括布置成透射激光辐射的光学组件。 光学组件包括有源光学晶体。 在晶体的两个相对表面中的一个表面上是由折射率低于晶体材料的材料形成的光学窗口。 作为透射激光辐射的结果，在与寡妇接触的晶体的表面上进行热沉积被转移到窗口，由此降低了对晶体表面的光学损伤的可能性。 窗口足够厚，使得其具有在等于激光辐射波长的波长处的四分之一波长光学厚度的奇整数倍，从而表现为在该波长处的晶体的抗反射装置。 在光学组件的一个实施例中，有源光学晶体是碲化镉晶体，窗口由溴化铯形成。

    CO2 waveguide laser with beryllium oxide waveguides
    6.
    发明授权
    CO2 waveguide laser with beryllium oxide waveguides 有权
    具有铍氧化物波导的CO2波导激光器

    公开(公告)号：US07046709B2

    公开(公告)日：2006-05-16

    申请号：US10716001

    申请日：2003-11-18

    申请人： Vernon Seguin ,  Leon Newman ,  John Kennedy

    发明人： Vernon Seguin ,  Leon Newman ,  John Kennedy

    IPC分类号： H01S3/03

    CPC分类号： H01S3/0315 ,  H01S3/0305 ,  H01S3/076 ,  H01S3/2232

    摘要： A pulsed, Q-switched, waveguide CO2 laser includes a plurality of waveguide channels formed in a block of a beryllium oxide ceramic material and is operated at a wavelength between about 9.2 and 9.7 micrometers. The laser has an output power up to 55% greater than that of a similarly configured laser, operated at the same wavelength and pulse conditions, but wherein the waveguide channels are formed in a block of an alumina ceramic material.

    摘要翻译： 脉冲Q开关波导CO 2激光器包括形成在氧化铍陶瓷材料的块中的多个波导通道，并且在约9.2和9.7微米之间的波长下操作。 激光器的输出功率比类似配置的激光器的输出功率高出55％，在相同的波长和脉冲条件下工作，但是其中波导通道形成在氧化铝陶瓷材料的块中。

    CO2 waveguide laser with beryllium oxide waveguides
    7.
    发明申请
    CO2 waveguide laser with beryllium oxide waveguides 有权
    具有铍氧化物波导的CO2波导激光器

    公开(公告)号：US20050105581A1

    公开(公告)日：2005-05-19

    申请号：US10716001

    申请日：2003-11-18

    申请人： Vernon Seguin ,  Leon Newman ,  John Kennedy

    发明人： Vernon Seguin ,  Leon Newman ,  John Kennedy

    IPC分类号： H01S3/03 ,  H01S3/07 ,  H01S3/223

    CPC分类号： H01S3/0315 ,  H01S3/0305 ,  H01S3/076 ,  H01S3/2232

    摘要： A pulsed, Q-switched, waveguide CO2 laser includes a plurality of waveguide channels formed in a block of a beryllium oxide ceramic material and is operated at a wavelength between about 9.2 and 9.7 micrometers. The laser has an output power up to 55% greater than that of a similarly configured laser, operated at the same wavelength and pulse conditions, but wherein the waveguide channels are formed in a block of an alumina ceramic material.

    摘要翻译： 脉冲Q开关波导CO 2激光器包括形成在氧化铍陶瓷材料的块中的多个波导通道，并且在约9.2和9.7微米之间的波长下操作。 激光器的输出功率比类似配置的激光器的输出功率高出55％，在相同的波长和脉冲条件下工作，但是其中波导通道形成在氧化铝陶瓷材料的块中。

    Pulsed RF high pressure CO2 lasers
    8.
    发明授权
    Pulsed RF high pressure CO2 lasers 有权
    脉冲RF高压CO 2激光器

    公开(公告)号：US07453918B2

    公开(公告)日：2008-11-18

    申请号：US11484916

    申请日：2006-07-12

    申请人： Lanny Laughman ,  Vernon Seguin ,  Peter P. Chenausky ,  Robert Henschke ,  Eric R. Mueller

    发明人： Lanny Laughman ,  Vernon Seguin ,  Peter P. Chenausky ,  Robert Henschke ,  Eric R. Mueller

    IPC分类号： H01S3/22

    CPC分类号： H01S3/2232 ,  H01S3/0315 ,  H01S3/0385 ,  H01S3/041 ,  H01S3/076 ,  H01S3/0975

    摘要： An improved laser system includes a sealed-off, RF excited, diffusion cooled, high pressure, short pulsed, high peak power waveguide and slab CO2 laser that avoids problems typically associated with obtaining a diffused discharge at high gas pressures, without arcing and without corona, while maintaining the unsaturated gain and gas temperature experienced at low pressures and scaling to higher pressures. Such a system has a long operating life-time, and is capable of operation at high gas pressures to obtain relative fast rise and fall time pulses. The system emits relatively short pulse widths, with pulse energies up to and exceeding 30 mJ, with reasonably high pulse repetition rates. The system also has a low pulsed RF power duty cycle, thereby enabling the generation of high peak power pulses, as well as reasonable average power and reasonably high peak powers.

    摘要翻译： 改进的激光系统包括密封的，RF激发的，扩散冷却的，高压的，短脉冲的，高峰值功率波导和平板CO 2激光器，其避免了通常与在高处获得扩散放电有关的问题 气体压力，没有电弧和没有电晕，同时保持在低压下经历的不饱和增益和气体温度，并将其缩放到更高的压力。 这样的系统具有长的使用寿命，并且能够在高气体压力下操作以获得相对快速的上升和下降时间脉冲。 系统发射脉冲宽度相对较短，脉冲能量可达30 mJ，脉冲重复率相当高。 该系统还具有低脉冲RF功率占空比，从而能够产生高峰值功率脉冲，以及合理的平均功率和合理的高峰值功率。