Dispersion compensation in a chirped pulse amplification system
    1.
    发明授权
    Dispersion compensation in a chirped pulse amplification system 有权
    啁啾脉冲放大系统中的色散补偿

    公开(公告)号:US08189971B1

    公开(公告)日:2012-05-29

    申请号:US12077658

    申请日:2008-03-19

    IPC分类号: G02B6/34 H01S3/00

    摘要: Systems and methods for producing ultra-short optical pulses are provided. According to various embodiments, optical pulses are generated, stretched, amplified, and compressed to ultra-short lengths. In order to achieve the ultra-short lengths, dispersion compensation is provided prior to amplification and optionally before compression. Dispersion compensation prior to amplification can be performed by passing the optical pulses through a polarization-maintaining fiber that includes a nonlinear Bragg grating. In some embodiments, the optical pulses are repeatedly circulated through the polarization-maintaining fiber that includes the nonlinear Bragg grating. Dispersion compensation before compression can be achieved by passing the amplified optical pulse through another length of polarization-maintaining fiber.

    摘要翻译: 提供了用于产生超短脉冲的系统和方法。 根据各种实施例,产生光脉冲,拉伸,放大和压缩至超短的长度。 为了实现超短的长度,在放大之前和可选地在压缩之前提供色散补偿。 可以通过使光脉冲通过包括非线性布拉格光栅的偏振保持光纤来执行放大之前的色散补偿。 在一些实施例中,光脉冲被重复地循环通过包括非线性布拉格光栅的偏振保持光纤。 压缩前的色散补偿可以通过将放大的光脉冲通过另一长度的偏振保持光纤来实现。

    Active tuning of temporal dispersion in an ultrashort pulse laser system
    4.
    发明授权
    Active tuning of temporal dispersion in an ultrashort pulse laser system 有权
    主动调谐超短脉冲激光系统中的时间色散

    公开(公告)号:US08150271B1

    公开(公告)日:2012-04-03

    申请号:US12887025

    申请日:2010-09-21

    IPC分类号: H04B10/04

    CPC分类号: H04B10/25137 H04B10/508

    摘要: A chirped pulse amplification (CPA) system and method is described wherein the dispersion of the system is tuned by actively tuning one or more system components, for example, using a temperature or strain gradient, or using actinic radiation. In other embodiments, an additional element, such as a modulator, is added to the CPA system to actively to tune the pulse. A pulse monitor is added to the system to measure an output pulse and provide feedback to one or more active tuning elements.

    摘要翻译: 描述了啁啾脉冲放大(CPA)系统和方法,其中通过主动调谐一个或多个系统组件(例如使用温度或应变梯度)或使用光化辐射来调节系统的色散。 在其他实施例中,诸如调制器的附加元件被添加到CPA系统中以主动调谐脉冲。 脉冲监视器被添加到系统中以测量输出脉冲并向一个或多个主动调谐元件提供反馈。

    Combination optical isolator and pulse compressor
    5.
    发明授权
    Combination optical isolator and pulse compressor 失效
    组合光隔离器和脉冲压缩机

    公开(公告)号:US07436866B2

    公开(公告)日:2008-10-14

    申请号:US11291609

    申请日:2005-11-30

    IPC分类号: H01S3/10

    CPC分类号: H01S3/0057 H01S3/0064

    摘要: Optical systems configured for both changing the length of a laser pulse and operating as an optical isolator are disclosed. In some embodiments, optical isolation is achieve contemporaneously with laser pulse expansion or compression by using a grating based compressor or expander as one of the polarization elements of the optical isolator. In some embodiments, optical isolation is achieved contemporaneously with laser pulse expansion or compression by using a mode converter and a Bragg fiber as one of the polarization elements of the optical isolator. In some embodiments, a sub-wavelength polarizer including magnetic garnet is included in the optical isolator.

    摘要翻译: 公开了配置用于改变激光脉冲长度并作为光隔离器工作的光学系统。 在一些实施例中,通过使用基于光栅的压缩器或扩展器作为光隔离器的偏振元件之一,同时实现激光脉冲扩展或压缩的光学隔离。 在一些实施例中,通过使用模式转换器和布拉格光纤作为光隔离器的偏振元件之一,同时实现激光脉冲扩展或压缩的光学隔离。 在一些实施例中,包括磁性石榴石的亚波长偏振器包括在光隔离器中。

    Post amplification optical isolator
    7.
    发明授权
    Post amplification optical isolator 有权
    后置放大光隔离器

    公开(公告)号:US07139116B1

    公开(公告)日:2006-11-21

    申请号:US11333824

    申请日:2006-01-17

    IPC分类号: H01S3/00 H01S3/10

    CPC分类号: H01S3/0057 H01S3/0064

    摘要: Optical systems configured for both changing the length of a laser pulse and operating as an optical isolator are disclosed. In some embodiments, optical isolation is achieve contemporaneously with laser pulse expansion or compression by using a grating based compressor or expander as one of the polarization elements of the optical isolator. In some embodiments, optical isolation is achieved contemporaneously with laser pulse expansion or compression by using a mode converter and a Bragg fiber as one of the polarization elements of the optical isolator. In some embodiments, a sub-wavelength polarizer including magnetic garnet is included in the optical isolator. In some embodiments, an optical isolator is disposed between a final pulse amplifier and a target material in order to prevent light resulting from the delivery of an amplified laser pulse to the target material from traveling back to the final pulse amplifier.

    摘要翻译: 公开了配置用于改变激光脉冲长度并作为光隔离器工作的光学系统。 在一些实施例中,通过使用基于光栅的压缩器或扩展器作为光隔离器的偏振元件之一,同时实现激光脉冲扩展或压缩的光学隔离。 在一些实施例中,通过使用模式转换器和布拉格光纤作为光隔离器的偏振元件之一,同时实现激光脉冲扩展或压缩的光学隔离。 在一些实施例中,包括磁性石榴石的亚波长偏振器包括在光隔离器中。 在一些实施例中,光隔离器设置在最终脉冲放大器和目标材料之间,以便防止由放大的激光脉冲传送到目标材料而导致的光返回到最终的脉冲放大器。

    High-order Bragg fiber dispersion correction
    8.
    发明授权
    High-order Bragg fiber dispersion correction 有权
    高阶布拉格光纤色散校正

    公开(公告)号:US07835646B2

    公开(公告)日:2010-11-16

    申请号:US11440607

    申请日:2006-05-24

    IPC分类号: H04J14/02

    摘要: The present invention generally concerns the use of Bragg optical fibers in chirped pulse amplification systems for the production of high-pulse-energy ultrashort optical pulses. A gas-core Bragg optical fiber waveguide can be advantageously used in such systems to stretch the duration of pulses so that they can be amplified, and/or Bragg fibers can be used to compress optical signals into much shorter duration pulses after they have been amplified. Bragg fibers can also function as near-zero-dispersion delay lines in amplifier sections.

    摘要翻译: 本发明一般涉及在啁啾脉冲放大系统中使用布拉格光纤用于生产高脉冲能量超短脉冲光脉冲。 气体布拉格光纤波导可以在这样的系统中有利地用于延长脉冲的持续时间以便它们被放大,和/或布拉格光纤可以用于在光信号被放大之后将光信号压缩成更短的持续时间脉冲 。 布拉格光纤也可以用作放大器部分中的近零色散延迟线。

    Active tuning of temporal dispersion in an ultrashort pulse laser system
    9.
    发明授权
    Active tuning of temporal dispersion in an ultrashort pulse laser system 有权
    主动调谐超短脉冲激光系统中的时间色散

    公开(公告)号:US07822347B1

    公开(公告)日:2010-10-26

    申请号:US11391936

    申请日:2006-03-28

    IPC分类号: H04B10/04

    CPC分类号: H04B10/25137 H04B10/508

    摘要: A chirped pulse amplification (CPA) system and method is described wherein the dispersion of the system is tuned by actively tuning one or more system components, for example, using a temperature or strain gradient, or using actinic radiation. In other embodiments, an additional element, such as a modulator, is added to the CPA system to actively to tune the pulse. A pulse monitor is added to the system to measure an output pulse and provide feedback to one or more active tuning elements.

    摘要翻译: 描述了啁啾脉冲放大(CPA)系统和方法,其中通过主动调谐一个或多个系统组件(例如使用温度或应变梯度)或使用光化辐射来调节系统的色散。 在其他实施例中,诸如调制器的附加元件被添加到CPA系统中以主动调谐脉冲。 脉冲监视器被添加到系统中以测量输出脉冲并向一个或多个主动调谐元件提供反馈。