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    • 22. 发明授权
    • Wavelength selective switch
    • 波长选择开关
    • US08867016B2
    • 2014-10-21
    • US13418274
    • 2012-03-12
    • Hongwei MaoLifu GongTian ZhuJian Liu
    • Hongwei MaoLifu GongTian ZhuJian Liu
    • G02F1/13
    • G02B6/356G02B6/29302G02B6/29313G02B6/2938G02B6/3558G02F1/31H04J14/0212H04J14/06H04Q11/0005H04Q2011/0026H04Q2011/0035
    • Methods, systems, and apparatus, for optical switching. In one aspect, a wavelength selective switch includes one or more optical input ports; one or more optical output ports; a first optical wavelength dispersion element configured to separate the plurality of wavelength channels of the input optical beam; a second optical wavelength dispersion element configured to combine two or more separate optical beams each having one or more different wavelengths, into a combined beam having the plurality of wavelength channels; a polarization modulator array configured to independently change a polarization orientation of an optical beam passing through; optical components for directing optical beams corresponding to respective wavelength channels to different polarizing modulation cells; and a polarization beam splitter configured to route received optical beams to particular output paths according to polarization orientation.
    • 用于光交换的方法,系统和装置。 一方面,波长选择开关包括一个或多个光输入端口; 一个或多个光输出端口; 第一光波长色散元件,被配置为分离所述输入光束的所述多个波长通道; 第二光波长色散元件,被配置为将具有一个或多个不同波长的两个或更多个分离光束组合成具有多个波长通道的组合光束; 偏振调制器阵列,被配置为独立地改变通过的光束的偏振取向; 用于将对应于各个波长信道的光束引导到不同的偏振调制单元的光学部件; 以及偏振分束器,其被配置为根据偏振取向将接收的光束路由到特定的输出路径。
    • 23. 发明授权
    • Fiber geometrical management for TEM00 mode pulse energy scaling of fiber lasers and amplifiers
    • 光纤几何管理用于TEM00模式脉冲能量定标的光纤激光器和放大器
    • US08837038B2
    • 2014-09-16
    • US13615472
    • 2012-09-13
    • Jian Liu
    • Jian Liu
    • H01S3/067G02B6/024G02B6/122G02B6/12
    • H01S3/06729C03B2203/302G02B6/02G02B6/024G02B6/1228G02B2006/12038H01S3/06745H01S3/06754
    • Methods and systems for managing pulse energy scaling are disclosed, including generating electromagnetic radiation; coupling the electromagnetic radiation to a fiber geometrical management system comprising: a tapered fiber comprising: an elliptical or rectangular core centrally positioned within a single or double cladding shell, wherein the core comprises a fiber material and a doped gain medium; an input face wherein the doped core comprises a major axis and a minor axis, wherein the ratio of the major to minor axis at the input face ranges from about 1 to about 100; an output face wherein the doped core comprises a major axis and a minor axis, wherein the ratio of the major to minor axis at the output face ranges from about 1 to about 100; and wherein the major (minor) axis is adiabatically or linearly tapered from the input face to the output face. Other embodiments are described and claimed.
    • 公开了用于管理脉冲能量缩放的方法和系统,包括产生电磁辐射; 将所述电磁辐射耦合到光纤几何管理系统,所述光纤几何管理系统包括:锥形光纤,包括:中心地位于单包层或双包层外壳内的椭圆形或矩形芯,其中所述芯包括纤维材料和掺杂增益介质; 输入面,其中所述掺杂芯包括长轴和短轴,其中所述输入面处的所述主轴与所述短轴的比率在约1至约100的范围内; 输出面,其中所述掺杂芯包括长轴和短轴,其中所述输出面处的所述主轴与所述短轴的比率在约1至约100的范围内; 并且其中主(次)轴从输入面到输出面绝热或线性渐缩。 描述和要求保护其他实施例。
    • 25. 发明授权
    • 2 micron femtosecond fiber laser
    • 2微米飞秒光纤激光器
    • US08792158B2
    • 2014-07-29
    • US13452817
    • 2012-04-20
    • Jian LiuPeng WanLihmei Yang
    • Jian LiuPeng WanLihmei Yang
    • H01S3/067
    • H01S3/067H01S3/06725H01S3/06754H01S3/083H01S3/1112H01S3/1118H01S3/161H01S3/1616H01S3/1698
    • Methods and systems for generating femtosecond fiber laser pulses are disclose, including generating a signal laser pulse from a seed laser oscillator; using a first amplifier stage comprising an input and an output, wherein the signal laser pulse is coupled into the input of the first stage amplifier and the output of the first amplifier stage emits an amplified and stretched signal laser pulse; using an amplifier chain comprising an input and an output, wherein the amplified and stretched signal laser pulse from the output of the first amplifier stage is coupled into the input of the amplifier chain and the output of the amplifier chain emits a further amplified, stretched signal laser pulse. Other embodiments are described and claimed.
    • 公开了用于产生飞秒光纤激光脉冲的方法和系统,包括从种子激光振荡器产生信号激光脉冲; 使用包括输入和输出的第一放大器级,其中所述信号激光脉冲耦合到所述第一级放大器的输入中,并且所述第一放大级的输出发射放大和拉伸的信号激光脉冲; 使用包括输入和输出的放大器链,其中来自第一放大器级的输出的放大和拉伸的信号激光脉冲耦合到放大器链的输入端,并且放大器链的输出发射进一步放大的拉伸信号 激光脉冲。 描述和要求保护其他实施例。
    • 28. 发明授权
    • Near-field material processing system
    • 近场材料处理系统
    • US08675193B2
    • 2014-03-18
    • US13454042
    • 2012-04-23
    • Jian LiuHuan Huang
    • Jian LiuHuan Huang
    • G01J3/30
    • G01N21/718G01N33/0057
    • Methods and systems for real time feedback and control of near-field material processing are disclosed, including generating electromagnetic radiation from a USP laser coupled to a central processing unit; coupling the electromagnetic radiation to an acousto-optic modulator; coupling the electromagnetic radiation to a beam delivery system; coupling the electromagnetic radiation to a beam delivery fiber; using the electromagnetic radiation to generate a plasma on a target mounted to an adjustable stage coupled to the central processing unit; coupling the electromagnetic radiation from the plasma to a plasma spectrum collection system; coupling the electromagnetic radiation to a spectrum analysis unit; coupling the electromagnetic radiation to a detector; and coupling the detector to the central processing unit; wherein the central processing unit uses the output from the detector as feedback in making adjustments to the USP laser and the adjustable stage. Other embodiments are described and claimed.
    • 公开了用于近场材料处理的实时反馈和控制的方法和系统,包括从耦合到中央处理单元的USP激光产生电磁辐射; 将电磁辐射耦合到声光调制器; 将电磁辐射耦合到光束传送系统; 将电磁辐射耦合到束输送光纤; 使用所述电磁辐射在安装到可耦合到所述中央处理单元的可调节台上的目标上产生等离子体; 将来自等离子体的电磁辐射耦合到等离子体谱采集系统; 将电磁辐射耦合到频谱分析单元; 将电磁辐射耦合到检测器; 并将检测器耦合到中央处理单元; 其中中央处理单元使用来自检测器的输出作为对USP激光器和可调节级进行调整的反馈。 描述和要求保护其他实施例。
    • 29. 发明申请
    • METHOD FOR PREPARING ATOSIBAN ACETATE
    • 制备阿托品酸酯的方法
    • US20130261285A1
    • 2013-10-03
    • US13579030
    • 2011-12-22
    • Qing XiaoJian LiuHongling LiYaping MaJiancheng Yuan
    • Qing XiaoJian LiuHongling LiYaping MaJiancheng Yuan
    • C07K7/64
    • C07K7/64C07K7/16
    • The present invention provides a method for preparing atosiban acetate. The method comprises the following steps of: synthesizing to obtain linear atosiban; dissolving the linear atosiban in an acetonitrile aqueous solution, adjusting the pH value with ammonia water, adding H2O2 for oxidizing, filtering, purifying, and transferring salt to obtain the atosiban acetate. In the present invention, an appropriate route is provided, the linear atosiban is synthesized by adopting a solid phase method, and the atosiban is obtained by liquid phase oxidation. The method has the advantages of capabilities of solving the problem of insolubility of the linear atosiban, reducing the reaction size to the maximum extent and shortening reaction time, and being high in yield and easy to industrialize.
    • 本发明提供了一种制备醋酸托西班醋酸酯的方法。 该方法包括以下步骤:合成得到线性阿托西班; 将线性阿托西班溶解在乙腈水溶液中,用氨水调节pH值,加入H 2 O 2进行氧化,过滤,纯化和转移盐,得到醋酸阿托品。 在本发明中,提供了适当的途径,通过采用固相法合成线性阿托西班,通过液相氧化获得阿托西班。 该方法具有解决线性阿托西班不溶性问题的能力,最大限度地减少反应尺寸,缩短反应时间,产率高,易于工业化的优点。
    • 30. 发明授权
    • Method and apparatus for wavelength locking free optical frequency comb based differential absorption Lidar
    • 用于波长锁定自由光学频率梳差分吸收激光的方法和装置
    • US08541744B1
    • 2013-09-24
    • US13791924
    • 2013-03-09
    • Jian Liu
    • Jian Liu
    • G01N21/00
    • G01S17/10G01N21/39G01N2021/1793G01N2021/394G01S7/4802G01S7/4817G01S7/484G01S7/486G01S17/42G01S17/95Y02A90/19
    • Methods and systems for wavelength locking free OFC based DIAL are disclosed, including generating electromagnetic radiation from a mode-locked fiber laser; coupling the electromagnetic radiation to an acousto-optic modulator; coupling the electromagnetic radiation to a power amplifier; collimating and coupling the amplified electromagnetic radiation into a scanner; steering the collimated and amplified electromagnetic radiation onto a target; using a telescope to collect a portion of the backscattered electromagnetic radiation from the target; coupling the collected portion of the backscattered electromagnetic radiation into a DWDM; using a photon counting receiver coupled to the DWDM to measure a multiple OFC on-resonant band intensity and a multiple OFC off-resonant band intensity; and comparing the multiple OFC on-resonant band intensity with the multiple OFC off-resonant band intensity in order to determine one or more concentrations of one or more molecules within the target. Other embodiments are described and claimed.
    • 公开了用于波长锁定的基于OFC的DIAL的方法和系统,包括从锁模光纤激光器产生电磁辐射; 将电磁辐射耦合到声光调制器; 将电磁辐射耦合到功率放大器; 将放大的电磁辐射准直并耦合到扫描仪中; 将准直和放大的电磁辐射转向目标; 使用望远镜收集来自目标的反向散射电磁辐射的一部分; 将所收集的背散射电磁辐射部分耦合到DWDM中; 使用耦合到DWDM的光子计数接收器来测量多个OFC导通共振频带强度和多个OFC非共振频带强度; 以及将多个OFC共振频带强度与多个OFC非共振频带强度进行比较,以便确定目标内的一个或多个分子的一种或多种浓度。 描述和要求保护其他实施例。