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29 条记录 (耗时 0.019 秒)

    Pulse selecting in a chirped pulse amplification system
    3.
    发明授权
    Pulse selecting in a chirped pulse amplification system 有权
    啁啾脉冲放大系统中的脉冲选择

    公开(公告)号：US07787175B1

    公开(公告)日：2010-08-31

    申请号：US11563957

    申请日：2006-11-28

    申请人： James F. Brennan, III ,  Laurent Vaissié ,  Michael Mielke ,  Tolga Yilmaz

    发明人： James F. Brennan, III ,  Laurent Vaissié ,  Michael Mielke ,  Tolga Yilmaz

    IPC分类号： H01S3/10 ,  H04B10/17

    CPC分类号： B23K26/0624

    摘要： A chirped pulse amplification (CPA) system and method is described wherein a pulse selector is added after a final amplifier in the system. The pulse selector is configured to select amplified pulses such that the system output repetition rate of the CPA system is below an ASE-limiting repetition rate of the amplifiers. The system may also comprise pulse pickers placed before the final amplifier to control pulse energy of the amplified pulses.

    摘要翻译： 描述了一种啁啾脉冲放大（CPA）系统和方法，其中在系统中的最终放大器之后添加脉冲选择器。 脉冲选择器被配置为选择放大脉冲，使得CPA系统的系统输出重复率低于放大器的ASE限制重复率。 系统还可以包括放置在最终放大器之前的脉冲拾取器，以控制放大脉冲的脉冲能量。

    Temperature stabilized optical fiber package
    6.
    发明授权
    Temperature stabilized optical fiber package 有权
    温度稳定的光纤封装

    公开(公告)号：US06668126B2

    公开(公告)日：2003-12-23

    申请号：US09860070

    申请日：2001-05-17

    申请人： George J. Knox ,  James F. Brennan, III

    发明人： George J. Knox ,  James F. Brennan, III

    IPC分类号： G02B600

    CPC分类号： G02B6/4453 ,  G02B6/02176

    摘要： A temperature stabilization package comprises a hollow external housing of a thermally insulating material. The hollow external housing includes a holder and a lid to cover the holder. The holder includes a floor having at least one projection and a separating wall around the projection. An internal surface of the lid has at least one post formed therein. The housing surrounds a container that includes a base and a cover over the base to form an internal cavity inside the container. An outer face of the base has at least one lower socket. The cover includes at least one upper collar so that the container may be coupled inside the hollow external housing by engagement of a lower socket with a projection and an upper collar with a post to hold the container substantially surrounded by, but spaced from, the wall and the hollow external housing. The internal cavity maintains a substantially uniform region of temperature therein, shielded from unstable thermal conditions outside the hollow external housing of the temperature stabilization package.

    摘要翻译： 温度稳定包装包括绝热材料的中空外壳。 中空的外壳包括保持器和盖以覆盖保持器。 保持器包括具有至少一个突起和围绕突起的分隔壁的地板。 盖的内表面具有形成在其中的至少一个柱。 壳体围绕容器，该容器包括基部和覆盖在基座上的盖，以在容器内形成内部空腔。 基座的外表面具有至少一个下插座。 所述盖包括至少一个上部套环，使得所述容器可以通过下部插座与突起的接合而联接在所述中空的外部壳体内部，并且所述上部套环具有柱，以将所述容器基本上围绕所述壁 和中空的外壳。 内部空腔在其中保持基本上均匀的温度区域，以防止温度稳定包装件的中空外壳外的不稳定的热条件。

    Method for writing arbitrary index perturbations in a wave-guiding structure
    7.
    发明授权
    Method for writing arbitrary index perturbations in a wave-guiding structure 失效
    在波导结构中写任意指数扰动的方法

    公开(公告)号：US6035083A

    公开(公告)日：2000-03-07

    申请号：US110495

    申请日：1998-07-06

    申请人： James F. Brennan, III ,  Dwayne L. LaBrake

    发明人： James F. Brennan, III ,  Dwayne L. LaBrake

    IPC分类号： G02B5/18 ,  G02B6/02 ,  G02B6/12 ,  G02B6/124 ,  G02B6/34 ,  H01S3/00

    CPC分类号： G02B6/124 ,  G02B6/02138 ,  G02B6/02147 ,  G02B6/29317 ,  G02B6/29394 ,  G02B2006/12107 ,  G02B2006/12109 ,  G02B2006/12138 ,  G02B6/02095 ,  G02B6/02152 ,  H01S3/0057

    摘要： A method and an apparatus for writing arbitrary refractive index perturbations along an optical waveguide. The method includes the steps of providing a waveguide having a photosensitive region and providing a writing beam of actinic radiation having a nominal diameter D, the writing beam defining an optical axis. A waveguide is translated relative to the optical axis of the writing beam at a known velocity v(t). A modulator modulates the radiation intensity I(t) of the writing beam as a function of time t to deliver a fluence of radiation, .PHI.(x), directly to the waveguide, wherein ##EQU1## The refractive index change .DELTA.n.sub.(x) at a position x along the waveguide length is related to the fluence delivered to that position as, .DELTA.n.sub.(x) =C.multidot..PHI..sub.(x), wherein C is a scaling factor that accounts for the photosensitivity of the waveguide.

    摘要翻译： 一种用于沿光波导写任意折射率扰动的方法和装置。 该方法包括以下步骤：提供具有感光区域的波导，并提供具有标称直径D的光束辐射的写入光束，该写入光束限定光轴。 以已知的速度v（t）相对于写入光束的光轴平移波导。 调制器调制作为时间t的函数的写入光束的辐射强度I（t），以将辐射能量PHI（x）直接传递到波导，其中折射率在位置处改变DELTA n（x） 沿着波导长度的x与递送到该位置的能量密度相关，如DELTA n（x）= Cx PHI（x），其中C是考虑波导的光敏性的比例因子。

    SEVERAL MEASUREMENT MODALITIES IN A CATHETER-BASED SYSTEM
    8.
    发明申请
    SEVERAL MEASUREMENT MODALITIES IN A CATHETER-BASED SYSTEM 审中-公开
    基于CATHETER的系统中的几种测量模式

    公开(公告)号：US20110313299A1

    公开(公告)日：2011-12-22

    申请号：US13224988

    申请日：2011-09-02

    申请人： James F. Brennan, III

    发明人： James F. Brennan, III

    IPC分类号： A61B6/00

    CPC分类号： A61B5/02007 ,  A61B5/0066 ,  A61B5/0075 ,  A61B5/0086 ,  A61B5/065 ,  A61B5/6858 ,  A61N5/0601

    摘要： The invention provides optical switching-based systems and methods for catheter-based optical diagnosis which are particularly well suited to determining the condition of blood vessels, including the state of the vessels with respect to atherosclerosis and its development. Various embodiments provide catheter-based spectroscopic systems that are configured to cycle between different optical interrogation techniques such as Raman spectroscopy, optical coherence tomography and time-resolved laser-induced fluorescence spectroscopy. One embodiment of the invention provides an intravascular catheter-based diagnostic system that cycles between fingerprint region (200-2,500 cm−1) Raman spectroscopy and high-wavenumber region (2,500-4,000 cm−1) Raman spectroscopy.

    摘要翻译： 本发明提供基于光学开关的基于导管的光学诊断的系统和方法，其特别适合于确定血管的状况，包括关于动脉粥样硬化及其发展的血管状态。 各种实施例提供了基于导管的光谱系统，其被配置为在诸如拉曼光谱学，光学相干断层摄影和时间分辨激光诱导荧光光谱之间的不同光学询问技术之间循环。 本发明的一个实施方案提供了一种基于血管内导管的诊断系统，其在指纹区域（200-2,500cm -1）拉曼光谱学和高波数区域（2,500-4,000cm -1）拉曼光谱学之间循环。