利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

10 条记录 (耗时 0.037 秒)

    Light source for generating an output signal having spaced apart frequencies
    6.
    发明授权
    Light source for generating an output signal having spaced apart frequencies 有权
    用于产生具有间隔开的频率的输出信号的光源

    公开(公告)号：US07315697B2

    公开(公告)日：2008-01-01

    申请号：US10173579

    申请日：2002-06-18

    申请人： Israel Smilanski ,  Isaac Shpantzer ,  Jacob B. Khurgin ,  Nadejda Reingand ,  Pak Shing Cho ,  Yaakov Achiam

    发明人： Israel Smilanski ,  Isaac Shpantzer ,  Jacob B. Khurgin ,  Nadejda Reingand ,  Pak Shing Cho ,  Yaakov Achiam

    IPC分类号： H04J14/02 ,  H04B10/04

    CPC分类号： H04J14/005 ,  H04B10/2543 ,  H04B10/2563 ,  H04B10/2572 ,  H04B10/505 ,  H04B10/508 ,  H04J14/02

    摘要： A multiple wavelength light source generates an output signal having a comb of accurately spaced apart frequencies with variable free spectral range in the C-band of optical fiber communication. The light source employs an electro-optical modulator (EOM) driven by a signal generator which modulates with EOM with multiple modulation frequencies to widen the output spectrum of signal. The EOM has a crystal provided with a waveguide. The waveguide may be doped with a rare-earth metal to impart gain properties to equalize the intensities of the comb. In one preferred embodiment, Er, Yt or other doping elements provide the gain property to waveguides. The crystal is also provided with periodically poled structure, and this may be engineered so as to form domains of unequal widths to improve the efficiency of modulation. The output signal from the light source may be split and presented to a bank of filters to create a multiple signals, each signal having one of the spaced apart frequencies. The output signals may be used as channels to be modulated by data and then combined in dense wavelength division multiplexing system, or may be used as a soliton source in time-division multiplexed communication systems.

    摘要翻译： 多波长光源在光纤通信的C波段中产生具有可变自由光谱范围的精确间隔开的频率梳的梳状输出信号。 光源采用由信号发生器驱动的电光调制器（EOM），该调制器利用具有多个调制频率的EOM进行调制，以加宽信号的输出频谱。 EOM具有配有波导的晶体。 波导可以掺杂稀土金属以赋予增益特性以均衡梳子的强度。 在一个优选实施例中，Er，Yt或其它掺杂元件为波导提供增益特性。 晶体还具有周期性极化结构，并且这可以被设计成形成不等宽度的域以提高调制效率。 来自光源的输出信号可以被分离并呈现给一组滤波器以产生多个信号，每个信号具有间隔开的频率之一。 输出信号可以用作要由数据调制的信道，然后在密集波分复用系统中组合，或者可以用作时分多路复用通信系统中的孤立源。

    Method and system for acoustically tuning a light source
    7.
    发明授权
    Method and system for acoustically tuning a light source 有权
    声源调谐光源的方法和系统

    公开(公告)号：US06671425B1

    公开(公告)日：2003-12-30

    申请号：US10173581

    申请日：2002-06-18

    申请人： Jacob B. Khurgin ,  Nadejda Reingand ,  Isaac Shpantzer ,  Israel Smilanski ,  Pak Shing Cho

    发明人： Jacob B. Khurgin ,  Nadejda Reingand ,  Isaac Shpantzer ,  Israel Smilanski ,  Pak Shing Cho

    IPC分类号： G02F1335

    CPC分类号： H04J14/005 ,  G02F1/125 ,  G02F1/21 ,  G02F2001/212 ,  H01S3/0635 ,  H01S3/0637 ,  H01S3/1068 ,  H01S3/1608 ,  H01S3/2383

    摘要： The present invention relates to an integrated light source having first and second optical waveguides defining a first optical coupling region for coupling light therebetween. At least one of the optical waveguides includes a gain medium configured to emit light upon irradiation. The light source also includes a first acoustic wave source to subject the first optical coupling region to acoustic waves having a longitudinal frequency &ohgr;AC1, whereby a frequency of light propagating along one of the first and second waveguides differs from a frequency of light propagating along the other waveguide by an amount by an amount &ohgr;AC1.

    摘要翻译： 本发明涉及具有第一和第二光波导的集成光源，其限定用于在其间耦合光的第一光耦合区域。 光波导中的至少一个包括被配置为在照射时发光的增益介质。 光源还包括第一声波源，用于使第一光耦合区域具有纵向频率ωgaAC1的声波，由此沿着第一和第二波导中的一个传播的光的频率不同于沿另一个传播的光的频率 波导量的量为ωgaAC1。

    Linear geometry thyratron
    9.
    发明授权
    Linear geometry thyratron 失效
    线性几何闸流闸

    公开(公告)号：US4668896A

    公开(公告)日：1987-05-26

    申请号：US708910

    申请日：1985-03-06

    申请人： Stanley R. Byron ,  Thomas Burkes ,  Rodney A. Petr ,  Israel Smilanski

    发明人： Stanley R. Byron ,  Thomas Burkes ,  Rodney A. Petr ,  Israel Smilanski

    IPC分类号： H01J17/56 ,  H01J17/12

    CPC分类号： H01J17/56

    摘要： The low pressure gas-filled thyratron is scalable in the long dimension. Internally the tube is formed as a tetrode, with an auxiliary grid placed between the cathode and the control grid. A DC or pulsed power source drives the auxiliary grid both to insure uniform cathode emission and to provide a grid-cathode plasma prior to commutation. The high voltage holdoff structure consists of the anode, the control grid and its electrostatic shielding baffles, and a main quartz insulator. A small gas flow supply and exhaust system is used that eliminates the need for a hydrogen reservoir and permits other gases, such as helium, to be used. The thyratron provides a low inductance, high current, long lifetime switch configuration; useful for switch-on applications involving large scale lasers and other similar loads that are distributed in a linear geometry.

    摘要翻译： 低压充气闸流管在长尺寸上是可扩展的。 在内部，管形成四极管，辅助栅极放置在阴极和控制栅之间。 DC或脉冲电源驱动辅助电网以确保均匀的阴极发射，并在换向之前提供栅极 - 阴极等离子体。 高压抑制结构由阳极，控制栅格及其静电屏蔽挡板和主石英绝缘体组成。 使用一种小型气流供排系统，消除了对氢气储存器的需要，并允许使用其他气体，如氦气。 闸流管提供低电感，高电流，长寿命的开关配置; 对于涉及大规模激光器和分布在线性几何中的其他类似负载的开关应用是有用的。

    Methods and systems for high-data-rate quantum cryptography
    10.
    发明授权
    Methods and systems for high-data-rate quantum cryptography 失效
    高数据量子密码学的方法和系统

    公开(公告)号：US07113598B2

    公开(公告)日：2006-09-26

    申请号：US10844903

    申请日：2004-05-13

    申请人： Allen M. Flusberg ,  Jonah H. Jacob ,  Martin A. Jaspan ,  Israel Smilanski

    发明人： Allen M. Flusberg ,  Jonah H. Jacob ,  Martin A. Jaspan ,  Israel Smilanski

    IPC分类号： H04K1/00

    CPC分类号： H04L9/0858

    摘要： Methods and systems enabling enhanced bit-rate QKD fiber-based key delivery. In one embodiment, a secure communications network of this invention includes a number of communication nodes, each of the communication nodes being connected to a quantum channel. At least one of the communication nodes (a sending node) includes a multiplexing system capable of assembling a succession of substantially single photons in a predetermined order. At least another of the communication nodes (a receiving node) includes a receiving system capable of receiving at least some of the assembled succession of substantially single photons, a demultiplexing system capable of separating the received assembled succession of substantially single photons into a number of separated successions of substantially single photons, and, a number of detector systems, each one of the detector systems being capable of detecting one separated succession of the successions of substantially single photons.

    摘要翻译： 方法和系统，可实现增强的基于比特率QKD光纤的密钥传递。 在一个实施例中，本发明的安全通信网络包括多个通信节点，每个通信节点连接到量子信道。 通信节点（发送节点）中的至少一个包括能够以预定顺序组装一系列基本单个光子的多路复用系统。 至少另一个通信节点（接收节点）包括能够接收基本上单个光子的组合的序列中的至少一些的接收系统，能够将接收到的组合的基本上单个光子的序列分离成多个分离的多个光子的解复用系统 基本上单个光子的连续，以及多个检测器系统，每个检测器系统能够检测基本上单个光子的一系列分离的连续序列。