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1. 发明申请

WO2008024094A2 HIGH DAMAGE THRESHOLD Q-SWITCHED CO2 LASER 审中-公开
标题翻译：高损耗阈值Q开关CO2激光器
公开(公告)号：WO2008024094A2
公开(公告)日：2008-02-28
申请号：PCT/US2006026681
申请日：2006-07-07
申请人： COHERENT INC , HUA CONGXUE , SEGUIN VERNON , NEWMAN LEON A , MUELLER ERIC R
发明人： HUA CONGXUE , SEGUIN VERNON , NEWMAN LEON A , MUELLER ERIC R
IPC分类号： H01S3/115
CPC分类号： H01S3/2232 , H01S3/08054 , H01S3/08095 , H01S3/0813 , H01S3/0817 , H01S3/10046 , H01S3/115
摘要： A thin film polarizer (TFP) and a half-wave CdTe electro-optical crystal are utilized to achieve a higher damage threshold in Q-switching CO 2 lasers for material processing applications. Half-wave CdTe electro-optical modulators can be used without the arcing and corona problems typically associated with the higher drive voltage by placing low dielectric constant insulators (such as BeO) around the CdTe crystal. Doubling the voltage placed across a CdTe crystal enables the crystal to function as a half-wave phase retarder EO switch with the same dimensions as a crystal functioning as a quarter-wave EO modulator. These half-wave EO switches can be used with TFPs to shape the output pulses, as well as to direct alternate pulses of repetitively pulsed super pulsed slab lasers to alternate scanners, thereby doubling the output of laser hole drilling systems.
摘要翻译：利用薄膜偏振器（TFP）和半波长CdTe电光晶体来实现用于材料加工应用的Q开关CO 2/2激光器的更高的损伤阈值。通过在CdTe晶体周围放置低介电常数绝缘体（如BeO），可以使用半波长的CdTe电光调制器，而不会产生通常与较高驱动电压相关的电弧和电晕问题。将跨越CdTe晶体的电压加倍使晶体能够作为与作为四分之一波长EO调制器的晶体相同尺寸的半波相位延迟器EO开关。这些半波EO开关可以与TFP一起使用，以形成输出脉冲，以及将重复脉冲的超脉冲平板激光器的交替脉冲引导到交替的扫描仪，从而使激光钻孔系统的输出加倍。

2. 发明申请

WO2006026143A3 APPARATUS FOR MODIFYING CO2 SLAB LASER PULSES 审中-公开
标题翻译：用于修改二氧化碳柱激光脉冲的装置
公开(公告)号：WO2006026143A3
公开(公告)日：2006-07-13
申请号：PCT/US2005029025
申请日：2005-08-16
申请人： COHERENT INC , NEWMAN LEON A , KENNEDY JOHN , FONTANELLA JOEL , GARDNER PHILLIP J
发明人： NEWMAN LEON A , KENNEDY JOHN , FONTANELLA JOEL , GARDNER PHILLIP J
IPC分类号： G02F1/03 , B23K26/06 , G02F1/355 , H01S3/00
CPC分类号： B23K26/0622 , B23K26/382 , B23K2201/42 , B23K2203/50 , G02F1/0327 , G02F2203/54 , H01S3/0057
摘要： The quality of pulses output from laser systems such as super-pulsed CO 2 slab lasers (306) can be improved using half-wavelength electro-optic modulators (EOMs) (302), in combination with thin film polarizers (TFPs) (304). A voltage applied across a CdTe crystal of the EOM rotates the polarization of a pulse passing through the EOM by 90°. The polarization determines whether the pulse passes through, or is redirected by, the TFP. The voltage applied to the crystal can be pulsed to prevent a drop in charge, which could allow radiation to leak to the application. A totem pole switch (312) used to apply voltage to the EOM can receive a pulsed voltage for improved performance. Directing by the EOM allows pulses to be clipped at the front/back end(s), split into portions, and/or directed to separate scanners. Directing pulses or pulse portions to different scanners can increase the output of systems such as hole drilling systems.
摘要翻译：可以使用半波长电光调制器（EOM）（302）与薄膜组合来改善从激光系统（例如超级脉冲CO 2/2）平板激光器（306）输出的脉冲的质量偏振器（TFP）（304）。施加在EOM的CdTe晶体两端的电压将通过EOM的脉冲的极化旋转90°。极化决定脉冲是否通过TFP或被TFP重定向。施加到晶体的电压可以被脉冲以防止电荷下降，这可能使辐射泄漏到应用中。用于向EOM施加电压的图腾柱开关（312）可以接收脉冲电压以提高性能。通过EOM引导允许在前/后端剪切脉冲，分割成部分，和/或指向分离的扫描仪。将脉冲或脉冲部分引导到不同的扫描仪可以增加系统的输出，例如钻孔系统。

3. 发明申请

WO2010080650A3 COMPENSATION FOR TRANSIENT HEATING OF LASER MIRRORS 审中-公开
标题翻译：激光镜暂时加热的补偿
公开(公告)号：WO2010080650A3
公开(公告)日：2010-08-26
申请号：PCT/US2009069194
申请日：2009-12-22
申请人： COHERENT INC , PAPANIDE ADRIAN , NEWMAN LEON A , LAUGHMAN LANNY
发明人： PAPANIDE ADRIAN , NEWMAN LEON A , LAUGHMAN LANNY
IPC分类号： H01S3/034 , G02B7/18 , H01S3/04
CPC分类号： H01S3/0401 , H01S3/0346 , H01S3/2232
摘要： A mirror assembly for a carbon dioxide (CO2) slab laser resonator includes a center section having a rectangular cross-section and a pair of thermal balancing bars. A concave reflecting surface formed on a front edge of a center section. The side-bars are attached to either side of the center section and extend forward of the reflective surface. Dimensions of the center section and side bars are selected to position the thermal neutral plane of the assembly close to the reflective surface. This minimizes changes the radius of curvature of the reflective surface due to heating by circulating radiation in the resonator.
摘要翻译：用于二氧化碳（CO2）板状激光谐振器的反射镜组件包括具有矩形横截面的中心部分和一对热平衡条。凹面反射面形成在中心部分的前边缘上。侧杆附接到中心部分的任一侧并且在反射表面的前方延伸。选择中心部分和侧杆的尺寸，使组件的热中性平面靠近反射表面。这使得由于在谐振器中循环辐射的加热而导致的反射表面的曲率半径的变化最小化。

4. 发明申请

WO2008121297A3 RF EXCITED CO2 SLAB LASER TUBE HOUSING AND ELECTRODES COOLING 审中-公开
标题翻译：射频激光二氧化碳SLAB激光管外壳和电极冷却
公开(公告)号：WO2008121297A3
公开(公告)日：2008-11-27
申请号：PCT/US2008003995
申请日：2008-03-27
申请人： COHERENT INC , NEWMAN LEON A , SHACKLETON CHRISTIAN J , PAPANIDE ADRIAN
发明人： NEWMAN LEON A , SHACKLETON CHRISTIAN J , PAPANIDE ADRIAN
IPC分类号： H01S3/041 , H01S3/223
CPC分类号： H01S3/2232 , H01S3/0014 , H01S3/03 , H01S3/0407 , H01S3/041
摘要： The laser tube housing of a C02 slab laser is provided with a cooling system in which coolant fluid tubes are inserted into hollowed out portions formed in the longitudinal sidewalls of the laser tube housing. Mounting the coolant fluid tubes in this way provides enhanced cooling and increased stiffness of the laser tube housing. Also, a cooling system is provided for the laser electrode assembly that relies on a manifold system that is mounted on a longitudinal sidewall of the laser tube housing to route coolant fluid through the sidewall to the electrode assembly; sidewall flow of the coolant fluid enables the end flanges of the laser tube housing to be remove without disturbing either the electrodes or the optical resonator of the laser. Also, a bracket assembly is provided for attaching the laser electrode assembly to a longitudinal sidewall of the laser tube housing. The bracket assembly includes two brackets attached to an end of the electrode assembly and also attached to a longitudinal sidewall of the laser tube housing near the longitudinal ends of said housing.
摘要翻译： CO 2平板激光器的激光管壳体设置有冷却系统，其中冷却剂流体管被插入形成在激光管壳体的纵向侧壁中的中空部分中。以这种方式安装冷却剂流体管可提供激光管壳体的增强的冷却和增加的刚度。此外，为激光电极组件提供依赖于安装在激光管壳体的纵向侧壁上以将冷却剂流体通过侧壁引导到电极组件的歧管系统的冷却系统; 冷却剂流体的侧壁流动使得能够去除激光管壳体的端部凸缘而不干扰激光器的电极或光学谐振器。此外，提供了一种支架组件，用于将激光电极组件附接到激光管壳体的纵向侧壁。支架组件包括附接到电极组件的端部并且还附接到靠近所述壳体的纵向端部的激光管壳体的纵向侧壁的两个支架。

5. 发明申请

WO2007142862A3 TRANSFORMER FOR IMPEDANCE-MATCHING POWER OUTPUT OF RF AMPLIFIER TO GAS-LASER DISCHARGE 审中-公开
标题翻译：射频放大器的功率输出阻抗匹配用于气体放电的变压器
公开(公告)号：WO2007142862A3
公开(公告)日：2008-03-20
申请号：PCT/US2007012409
申请日：2007-05-24
申请人： COHERENT INC , ROBOTHAM W SHEF , HAUER FREDERICK W , NEWMAN LEON A
发明人： ROBOTHAM W SHEF , HAUER FREDERICK W , NEWMAN LEON A
IPC分类号： H01F19/04 , H01F27/28 , H01F41/04
CPC分类号： H01F19/04 , H01F27/2804 , H01F41/041 , H03F1/565 , H05K1/165
摘要： An RF impedance-matching transformer (200) for matching the output impedance of an RF amplifier to the discharge of a gas-discharge laser includes upper and lower dielectric plates (206, 204) arranged face-to-face and bonded together. A primary U-shaped strip winding (208) is embedded in the bonded surface of one of the dielectric plates. A secondary strip- winding (210) is formed on an exposed surface of the upper dielectric plates. A ground-plane electrode (202) formed on an exposed surface of the lower dielectric plate. An electrical connector connects one end of the secondary strip-winding to the ground-plane electrode via a via-hole (214) extending through the dielectric plates. The other end of the secondary strip-winding can be connected to the laser.
摘要翻译：用于将RF放大器的输出阻抗与气体放电激光器的放电相匹配的RF阻抗匹配变压器（200）包括面对面并且结合在一起的上和下介电板（206,204）。初级U形条形绕组（208）嵌入在一个电介质板的接合表面中。在上电介质板的暴露表面上形成次级带状绕组（210）。形成在下介电板的暴露表面上的接地平面电极（202）。电连接器通过延伸穿过电介质板的通孔（214）将次级带状绕组的一端连接到接地平面电极。第二条带绕组的另一端可以连接到激光器。

6. 发明申请

WO2013148530A3 COMPACT CO2 SLAB-LASER 审中-公开
公开(公告)号：WO2013148530A3
公开(公告)日：2013-12-19
申请号：PCT/US2013033611
申请日：2013-03-22
申请人： COHERENT INC
发明人： NEWMAN LEON A , PAPANIDE ADRIAN , RZEWNICKI MATHEW DAVID , HENNESSEY THOMAS V
IPC分类号： H01S3/04 , G02B27/09 , H01S3/00 , H01S3/02 , H01S3/03 , H01S3/041 , H01S3/097 , H01S3/22 , H01S3/223
CPC分类号： H01S3/04 , H01S3/005 , H01S3/0078 , H01S3/02 , H01S3/0315 , H01S3/0407 , H01S3/041 , H01S3/097 , H01S3/22 , H01S3/2232
摘要： A compact C02 slab-laser is contained in a fluid cooled housing (40) having three compartments (46, 48, 50). One compartment (48) houses discharge electrodes (70, 71) and a laser resonator. Another compartment (48) houses a radio-frequency power supply (RFPS) assembled on a fluid-cooled chill plate (82) and an impedance- matching network. The remaining compartment (50) houses beam- conditioning optics including a spatial filter (290, 340). The housing (40) and RFPS chill-plate (82) are on a common coolant-fluid circuit having a single input (214, 259) and a single output (216, 272). The spatial filter (290, 340) is optionally fluid-coolable on the common coolant fluid circuit.
摘要翻译：紧凑的CO 2平板激光器包含在具有三个隔室（46,48,50）的流体冷却壳体（40）中。一个隔室（48）容纳放电电极（70,71）和激光谐振器。另一隔室（48）容纳组装在流体冷却冷却板（82）和阻抗匹配网络上的射频电源（RFPS）。剩余的隔间（50）容纳包括空间滤波器（290,340）的波束调节光学元件。壳体（40）和RFPS冷却板（82）位于具有单个输入（214,259）和单个输出（216,272）的公共冷却剂流体回路上。空气过滤器（290,340）可选地在公共冷却剂流体回路上流体冷却。

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