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354 条记录 (耗时 0.029 秒)

    Self mode-locking semiconductor disk laser
    81.
    发明授权
    Self mode-locking semiconductor disk laser 有权
    自锁式半导体磁盘激光器

    公开(公告)号：US09461434B2

    公开(公告)日：2016-10-04

    申请号：US14389247

    申请日：2013-03-27

    申请人： SOLUS TECHNOLOGIES LIMITED

    发明人： Craig James Hamilton ,  Graeme Peter Alexander Malcolm ,  Lukasz Kornaszewski

    IPC分类号： H01S3/081 ,  H01S5/10 ,  H01S3/086 ,  H01S3/11 ,  H01S5/065 ,  H01S5/14 ,  H01S5/34 ,  H01S3/08 ,  H01S5/024 ,  H01S5/04 ,  H01S5/183 ,  H01S3/094

    CPC分类号： H01S3/0813 ,  H01S3/0805 ,  H01S3/0817 ,  H01S3/086 ,  H01S3/094053 ,  H01S3/1112 ,  H01S5/02484 ,  H01S5/041 ,  H01S5/0657 ,  H01S5/1075 ,  H01S5/141 ,  H01S5/183 ,  H01S5/34

    摘要： The present invention describes a self mode locking laser and a method for self mode locking a laser. The laser (1) comprises a resonator terminated by first (3) and second (4) mirrors and folded by a third mirror (5). The third mirror comprises a single distributed Bragg reflector (17) upon which is mounted a multilayer semiconductor gain medium (18) and which includes at least one quantum well layer and an optical Kerr lensing layer (22). Self mode locking may be achieved by configuring the laser resonator such that the lensing effect of the Kerr lensing layer acts to reduce an astigmatism deliberately introduced to the cavity mode. The self mode locking of the laser may be further enhanced by selecting the length of the resonator such that a round trip time of a cavity mode is matched with an upper-state lifetime of one or more semiconductor carriers located within the gain medium.

    摘要翻译： 本发明描述了一种自锁式激光器和一种自锁式激光器的方法。 激光器（1）包括由第一（3）和第二（4）反射镜端接并由第三反射镜（5）折叠的谐振器。 第三反射镜包括单个分布式布拉格反射器（17），其上安装有多层半导体增益介质（18），并且其包括至少一个量子阱层和光学克尔透镜层（22）。 可以通过配置激光谐振器来实现自锁定，使得克尔透镜层的透镜效应用于减少有意引入空腔模式的象散。 可以通过选择谐振器的长度使得腔模式的往返时间与位于增益介质内的一个或多个半导体载体的上限寿命相匹配来进一步增强激光器的自锁定。

    Laser Crystal
    82.
    发明申请
    Laser Crystal 审中-公开
    激光水晶

    公开(公告)号：US20160268765A1

    公开(公告)日：2016-09-15

    申请号：US15031917

    申请日：2014-10-27

    申请人： ATLA LASERS AS

    发明人： Irina T. SOROKINA

    IPC分类号： H01S3/109 ,  H01S3/11 ,  H01S3/16

    CPC分类号： H01S3/1095 ,  H01S3/0816 ,  H01S3/1112 ,  H01S3/1118 ,  H01S3/1623 ,  H01S3/1628 ,  H01S5/0605

    摘要： The present disclosure provides a method of optimising an optical system of a mode-locked laser oscillator or a regenerative, multi-pass or single pass amplifier. The method may include the steps of identifying crystallographic axes of an active laser gain medium crystal, cutting the crystal, and orienting the crystal in the optical system in a predetermined orientation relative to a propagation vector of a laser pulse depending on the required output of the optical system.

    摘要翻译： 本公开提供了一种优化模式锁定激光振荡器或再生，多通或单通放大器的光学系统的方法。 该方法可以包括以下步骤：根据激光脉冲的所需输出，相对于激光脉冲的传播矢量，以预定的方向识别有源激光增益介质晶体的结晶轴，切割晶体和定向光学系统中的晶体 光学系统。

    Pulse laser generator and optical fiber sensor system using same
    84.
    发明授权
    Pulse laser generator and optical fiber sensor system using same 有权
    脉冲激光发生器和光纤传感器系统使用相同

    公开(公告)号：US09312656B2

    公开(公告)日：2016-04-12

    申请号：US14404116

    申请日：2013-05-31

    申请人： KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

    发明人： Ho Jae Lee ,  Ki Nam Joo

    IPC分类号： G02B21/36 ,  H01S3/11 ,  G01K11/32 ,  G01D5/353 ,  G01B11/16 ,  G01L11/02 ,  G01L1/24 ,  H01S3/067 ,  H01S3/1055 ,  H01S3/106 ,  H01S3/16

    CPC分类号： H01S3/11 ,  G01B11/165 ,  G01D5/35309 ,  G01K11/32 ,  G01K11/3206 ,  G01L1/242 ,  G01L11/025 ,  H01S3/06791 ,  H01S3/1055 ,  H01S3/106 ,  H01S3/1112 ,  H01S3/1618

    摘要： Disclosed are a pulse laser generator and an optical fiber sensor system using the same. The optical fiber sensor system includes a main optical coupler that receives pulse laser light generated from a pulse laser generator from a first input terminal, branches the light to first and second output terminals to output, and outputs, through a third output terminal, light input reversely from the first and second output terminals, a reference optical fiber that is connected to the first output terminal, a multi-point sensing optical fiber unit that is connected to the second output terminal, and in which optical fibers are connected in series or in parallel corresponding to a plurality of sensing points, an optical detection unit that is connected to the third output terminal, and a diagnosis processing unit that detects a change of the physical quantity for the sensing points from signals from the optical detection unit.

    摘要翻译： 公开了一种脉冲激光发生器和使用该脉冲激光发生器的光纤传感器系统。 光纤传感器系统包括：主光耦合器，其从第一输入端接收从脉冲激光发生器产生的脉冲激光，将光分支到第一和第二输出端以输出，并通过第三输出端输出光输入 与第一和第二输出端相反，连接到第一输出端的参考光纤，连接到第二输出端的多点感测光纤单元，其中光纤串联连接或 并行对应于多个检测点，连接到第三输出端的光学检测单元，以及诊断处理单元，其从来自光学检测单元的信号检测感测点的物理量的变化。

    Compact, coherent, high brightness light sources for the mid and far IR
    85.
    发明授权
    Compact, coherent, high brightness light sources for the mid and far IR 有权
    紧凑，连贯，高亮度的光源，适用于中远红外线

    公开(公告)号：US09252554B2

    公开(公告)日：2016-02-02

    申请号：US14221704

    申请日：2014-03-21

    申请人： IMRA AMERICA, INC.

    发明人： Martin E. Fermann

    IPC分类号： H01S3/067 ,  H01S3/11 ,  B23K26/00 ,  H01S3/10 ,  H01S3/16

    CPC分类号： H01S3/06725 ,  B23K26/352 ,  B23K26/361 ,  B23K26/362 ,  H01S3/06712 ,  H01S3/06741 ,  H01S3/0675 ,  H01S3/06754 ,  H01S3/06791 ,  H01S3/10015 ,  H01S3/10092 ,  H01S3/1112 ,  H01S3/1118 ,  H01S3/1608 ,  H01S3/1616

    摘要： Compact high brightness light sources for the mid and far IR spectral region, and exemplary applications are disclosed based on passively mode locked Tm fiber comb lasers. In at least one embodiment the coherence of the comb sources is increased in a system utilizing an amplified single-frequency laser to pump the Tm fiber comb laser. The optical bandwidth generated by the passively mode locked Tm fiber comb laser is further decreased by using simultaneous 2nd and 3rd order dispersion compensation using either appropriate chirped fiber Bragg gratings for dispersion compensation, or fibers with appropriately selected values of 2nd and 3rd order dispersion. Fibers with large anomalous values of third order dispersion, or fibers with large numerical apertures, for example fibers having air-holes formed in the fiber cladding may be utilized.

    摘要翻译： 基于被动模式锁定的Tm光纤梳状激光器公开了用于中红外光谱区域和远红外光谱区域的紧凑型高亮度光源，以及示例性应用。 在至少一个实施例中，在利用放大的单频激光器来泵浦Tm纤维梳状激光器的系统中，梳状源的相干性增加。 通过使用用于色散补偿的适当的啁啾光纤布拉格光栅或具有适当选择的二阶和三阶色散值的光纤，通过使用同时的二次和三阶色散补偿来进一步减少由被动模式锁定的Tm光纤梳状激光器产生的光学带宽。 可以使用具有三阶分散的大异常值的纤维或具有大数值孔径的纤维，例如在纤维包层中形成具有空气孔的纤维。

    LASER PROCESSING APPARATUS
    86.
    发明申请
    LASER PROCESSING APPARATUS 审中-公开
    激光加工设备

    公开(公告)号：US20160001397A1

    公开(公告)日：2016-01-07

    申请号：US14790662

    申请日：2015-07-02

    申请人： Microinspection, Inc.

    发明人： Tak EUN ,  Cheol-woong BYUN ,  Young-min PARK

    IPC分类号： B23K26/046 ,  B23K26/062 ,  B23K26/064 ,  B23K26/0622

    CPC分类号： B23K26/046 ,  B23K26/0624 ,  B23K26/0648 ,  B23K26/0652 ,  H01S3/0057 ,  H01S3/1112

    摘要： The present disclosure provides a laser processing apparatus. A laser processing apparatus includes a laser generator, a laser amplifier, a chromatic dispersion tuner and an optical focusing unit. The laser generator is configured to generate ultrashort pulse laser having chirp characteristics by simultaneously generating a plurality of wavelengths. The laser amplifier is configured to amplify the laser generated by the laser generator. The chromatic dispersion tuner is configured to adjust chirp and pulse width of the laser output from the laser amplifier. The optical focusing unit is configured to irradiate a workpiece with the laser after adjusting the depth of focus of the laser with the chirp and the pulse width adjusted by the chromatic dispersion tuner.

    摘要翻译： 本公开提供了一种激光加工设备。 激光加工装置包括激光发生器，激光放大器，色散调谐器和光聚焦单元。 激光发生器被配置为通过同时产生多个波长来产生具有啁啾特性的超短脉冲激光器。 激光放大器被配置为放大由激光发生器产生的激光。 色散调谐器被配置为调节来自激光放大器的激光输出的啁啾和脉冲宽度。 光聚焦单元被配置为在利用啁啾调节激光器的焦深并且通过色散调谐器调节的脉冲宽度之后，用激光照射工件。

    HIGH POWER ULTRA-SHORT LASER DEVICE
    88.
    发明申请
    HIGH POWER ULTRA-SHORT LASER DEVICE 有权
    大功率超短激光器件

    公开(公告)号：US20150288126A1

    公开(公告)日：2015-10-08

    申请号：US14264307

    申请日：2014-04-29

    申请人： Electronics and Telecommunications Research Institute ,  GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY

    发明人： Dong Hoon SONG ,  Do Kyeong KO ,  Dong Ho SHIN ,  Hwang Woon LEE ,  Moon Youn JUNG ,  Won Bae CHO

    IPC分类号： H01S3/00 ,  H01S3/102 ,  H01S3/11

    CPC分类号： H01S3/005 ,  G02B5/09 ,  G02B17/004 ,  H01S3/07 ,  H01S3/08068 ,  H01S3/0811 ,  H01S3/0813 ,  H01S3/0823 ,  H01S3/094038 ,  H01S3/1024 ,  H01S3/11 ,  H01S3/1112 ,  H01S3/1625 ,  H01S3/1636 ,  H01S2301/02

    摘要： Disclosed is a high power ultra-short pulsed laser device increasing pulse energy by using resonators. A pulsed laser device may comprise a first resonator making a pump beam resonate primarily and passing the pump beam which resonated through a first output mirror; and a second resonator comprising a first multiple reflection mirror and a second multiple reflection mirror. Also, the first multiple reflection mirror includes at least one first small area mirror, and the second multiple reflection mirror includes at least one second small area mirror, and the second resonator makes the laser beam delivered from the first resonator resonate by reflecting the laser beam repetitively. Therefore, the pulsed laser device may increase pulse energy without using a multi-stage amplifier so that a high power ultra-short pulsed laser beam can be generated.

    摘要翻译： 公开了一种通过使用谐振器增加脉冲能量的大功率超短脉冲激光器件。 脉冲激光装置可以包括使泵浦光束主要谐振并使通过第一输出镜谐振的泵浦光束通过的第一谐振器; 以及包括第一多反射镜和第二多反射镜的第二谐振器。 此外，第一多反射镜包括至少一个第一小面积反射镜，并且第二多反射镜包括至少一个第二小面积反射镜，并且第二谐振器使得从第一谐振器传递的激光束通过反射激光束而谐振 重复。 因此，脉冲激光装置可以在不使用多级放大器的情况下增加脉冲能量，从而可以产生高功率超短脉冲激光束。

    PULSE LASER GENERATOR AND OPTICAL FIBER SENSOR SYSTEM USING SAME
    90.
    发明申请
    PULSE LASER GENERATOR AND OPTICAL FIBER SENSOR SYSTEM USING SAME 有权
    脉冲激光发生器和光纤传感器系统

    公开(公告)号：US20150138531A1

    公开(公告)日：2015-05-21

    申请号：US14404116

    申请日：2013-05-31

    申请人： KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

    发明人： Ho Jae Lee ,  Ki Nam Joo

    IPC分类号： H01S3/11 ,  G01K11/32 ,  G01B11/16 ,  G01L11/02

    CPC分类号： H01S3/11 ,  G01B11/165 ,  G01D5/35309 ,  G01K11/32 ,  G01K11/3206 ,  G01L1/242 ,  G01L11/025 ,  H01S3/06791 ,  H01S3/1055 ,  H01S3/106 ,  H01S3/1112 ,  H01S3/1618

    摘要： Disclosed are a pulse laser generator and an optical fiber sensor system using the same. The optical fiber sensor system includes a main optical coupler that receives pulse laser light generated from a pulse laser generator from a first input terminal, branches the light to first and second output terminals to output, and outputs, through a third output terminal, light input reversely from the first and second output terminals, a reference optical fiber that is connected to the first output terminal, a multi-point sensing optical fiber unit that is connected to the second output terminal, and in which optical fibers are connected in series or in parallel corresponding to a plurality of sensing points, an optical detection unit that is connected to the third output terminal, and a diagnosis processing unit that detects a change of the physical quantity for the sensing points from signals from the optical detection unit.

    摘要翻译： 公开了一种脉冲激光发生器和使用该脉冲激光发生器的光纤传感器系统。 光纤传感器系统包括：主光耦合器，其从第一输入端接收从脉冲激光发生器产生的脉冲激光，将光分支到第一和第二输出端以输出，并通过第三输出端输出光输入 与第一和第二输出端相反，连接到第一输出端的参考光纤，连接到第二输出端的多点感测光纤单元，其中光纤串联连接或 并行对应于多个检测点，连接到第三输出端的光学检测单元，以及诊断处理单元，其从来自光学检测单元的信号检测感测点的物理量的变化。