利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

4 条记录 (耗时 0.009 秒)

    Optical amplifier having automatic gain control with improved performance
    2.
    发明申请
    Optical amplifier having automatic gain control with improved performance 有权
    具有自动增益控制的光放大器具有改进的性能

    公开(公告)号：US20030030894A1

    公开(公告)日：2003-02-13

    申请号：US09925838

    申请日：2001-08-08

    申请人： Photuris, Inc.

    发明人： Andrew John Stentz

    IPC分类号： H01S003/00

    CPC分类号： H01S3/06754 ,  H01S3/10015 ,  H01S3/1301 ,  H01S3/1305

    摘要： A method and apparatus is provided for automatically controlling the gain of an optical amplifier. The method begins by generating a first control signal based on a feed-forward error signal and a second control signal based on the feedback error signal. Next, the pump source is adjusted in accordance with the control signals. In this way both the speed of a feed-forward arrangement and the accuracy of a feedback arrangement can be achieved.

    摘要翻译： 提供了一种用于自动控制光放大器的增益的方法和装置。 该方法开始于基于反馈误差信号基于前馈误差信号和第二控制信号产生第一控制信号。 接下来，根据控制信号调节泵浦源。 以这种方式，可以实现前馈布置的速度和反馈布置的精度。

    Wavelength division multiplexed optical communication system having a reconfigurable optical switch and a tunable backup laser transmitter
    3.
    发明申请
    Wavelength division multiplexed optical communication system having a reconfigurable optical switch and a tunable backup laser transmitter 有权
    具有可重构光开关和可调谐备用激光发射器的波分复用光通信系统

    公开(公告)号：US20020145778A1

    公开(公告)日：2002-10-10

    申请号：US10099561

    申请日：2002-03-15

    申请人： Photuris, Inc.

    发明人： Thomas Andrew Strasser ,  Paul Bonenfant ,  Jefferson L. Wagener

    IPC分类号： H04B010/08 ,  H04J014/02

    CPC分类号： G02B6/356 ,  G02B6/29305 ,  G02B6/29367 ,  G02B6/29395 ,  G02B6/3512 ,  G02B6/3548 ,  G02B6/357 ,  G02B6/3578 ,  G02B6/4215 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0279 ,  H04J14/0295 ,  H04J14/0297 ,  H04Q2011/0009 ,  H04Q2011/0016 ,  H04Q2011/0018 ,  H04Q2011/0024 ,  H04Q2011/003 ,  H04Q2011/0081

    摘要： In a WDM optical communication system that includes a plurality of nodes interconnected by communication links, a node is provided that includes a reconfigurable optical switch having a plurality of input ports and at least one output port. The node also includes a plurality of transmitters that are each coupled to one of the input ports of the optical switch. Each of the transmitters generate an information-bearing optical signal at a different channel wavelength from one another. The reconfigurable optical switch is adaptable to receive at any of the input ports any of the channel wavelengths at which the plurality of transmitters operate and direct the channel wavelengths to the output port. At least one backup transmitter is coupled to one of the input ports of the optical switch. The backup transmitter includes a tunable laser tunable to any of the channel wavelengths at which the plurality of transmitters operate. The reconfigurable optical switch includes at least one wavelength selective element that selects at least one channel wavelength from among any of the channel wavelengths received at any of the input ports. The switch also includes a plurality of optical elements associated with the wavelength selective elements, Each of the optical elements direct one of the selected channel wavelengths selected by the associated wavelength selective element to the output port independently from every other channel wavelength. The selected channel wavelengths directed to the output port are combined on the output port.

    摘要翻译： 在包括通过通信链路互连的多个节点的WDM光通信系统中，提供了包括具有多个输入端口和至少一个输出端口的可重新配置光开关的节点。 节点还包括多个发射机，每个发射机都耦合到光开关的一个输入端口。 每个发射机产生彼此不同信道波长的信息承载光信号。 可重构光开关适于在任何输入端口处接收多个发射器操作的任何信道波长，并将信道波长引导到输出端口。 至少一个备用发射器耦合到光开关的一个输入端口。 备用发射器包括可调谐激光器，可调谐到多个发射器操作的任何通道波长。 可重构光开关包括至少一个波长选择元件，其从在任何输入端口处接收的任何通道波长中选择至少一个信道波长。 开关还包括与波长选择元件相关联的多个光学元件。 每个光学元件将相关联的波长选择元件选择的所选择的通道波长中的一个独立于每隔一个通道波长引导到输出端口。 指向输出端口的所选择的信道波长在输出端口上组合。

    Optical attenuator employing a fusion splice
    4.
    发明申请
    Optical attenuator employing a fusion splice 审中-公开
    使用熔接的光衰减器

    公开(公告)号：US20030108307A1

    公开(公告)日：2003-06-12

    申请号：US10008370

    申请日：2001-12-06

    申请人： Photuris, Inc.

    发明人： Lars Erik Eskildsen ,  Torben N. Nielsen

    IPC分类号： G02B006/255 ,  G02B006/26

    CPC分类号： G02B6/2551 ,  G02B6/266

    摘要： An optical attenuator and a method of making an optical attenuator is disclosed. The method begins by arranging a first end of a first optical fiber and a second end of a second optical fiber so that they face one another in close proximity. The first and second ends of the optical fibers are then laterally offset from one another and the first end of the first fiber is fused to the second end of the second fiber to create a fusion splice. Next, the attenuation imposed on an optical signal transmitted from the first to the second optical fiber and through the fusion splice is measured to determine an initial deviation in attenuation from a prescribed value. The fusion splice is then re-fused while exerting an axially directed force on the first and second ends of the optical fiber. The measurement step is repeated to determine a subsequent deviation in attenuation from the prescribed value and the re-fusion step is repeated to reduce the subsequent deviation in attenuation. If necessary, this process is repeated until a resulting deviation in attenuation falls within a prescribed tolerance.

    摘要翻译： 公开了一种光衰减器和一种制造光衰减器的方法。 该方法开始于布置第一光纤的第一端和第二光纤的第二端，使得它们彼此紧密相对。 然后光纤的第一和第二端彼此横向偏移，并且第一光纤的第一端熔合到第二光纤的第二端以产生熔接。 接下来，测量施加在从第一光纤到第二光纤和熔接的光信号上的衰减，以确定衰减的初始偏离量与规定值。 然后，在光纤的第一和第二端上施加轴向定向的力，熔接熔合物。 重复测量步骤以确定随后的衰减与规定值的偏差，并且重复重熔步骤以减少随后的衰减偏差。 如果需要，重复该过程，直到产生的衰减偏差落在规定的公差内。