利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

61 条记录 (耗时 0.046 秒)

    Fast Dynamic Gain Control In An Optical Fiber Amplifier
    31.
    发明申请
    Fast Dynamic Gain Control In An Optical Fiber Amplifier 有权
    光纤放大器中的快速动态增益控制

    公开(公告)号：US20080007819A1

    公开(公告)日：2008-01-10

    申请号：US11858501

    申请日：2007-09-20

    申请人： Xiang Zhou ,  Martin Birk

    发明人： Xiang Zhou ,  Martin Birk

    IPC分类号： H01S3/091

    CPC分类号： H01S3/302 ,  H01S3/06754 ,  H01S3/094096 ,  H01S3/10015 ,  H01S2301/04 ,  H04B10/2916 ,  H04B10/296

    摘要： The present invention provides methods and apparatuses for controlling a gain of an optical fiber amplifier. Gain circuitry operates in an opened loop configuration and uses a predetermined function relating a power variation of at least one wavelength region with a pump power adjustment for at least one optical pump. Two approximate linear relationships between the input signal power variations and the required pump power adjustments are utilized in controlling the Raman fiber amplifier. Each approximate linear relationship includes at least one linear coefficient that relates a power variation for a specific wavelength region and a power adjustment of a specific Raman pump. The dynamic gain control technique is applicable to an Erbium-doped fiber/waveguide amplifier. Also, a dynamic gain control technique controls a backward-pumped Raman amplifier, in which the power variation is determined at one geographical location and the optical pumps are controlled at another geographical location.

    摘要翻译： 本发明提供了用于控制光纤放大器的增益的方法和装置。 增益电路以开环配置工作，并且使用将至少一个波长区域的功率变化与用于至少一个光泵的泵功率调整相关联的预定功能。 输入信号功率变化与所需泵浦功率调整之间的两个近似线性关系用于控制拉曼光纤放大器。 每个近似线性关系包括至少一个线性系数，其涉及特定波长区域的功率变化和特定拉曼泵的功率调整。 动态增益控制技术适用于掺铒光纤/波导放大器。 此外，动态增益控制技术控制反向泵浦拉曼放大器，其中在一个地理位置确定功率变化，并且将光泵控制在另一地理位置。

    Fast Dynamic Gain Control in an Optical Fiber Amplifier
    34.
    发明申请
    Fast Dynamic Gain Control in an Optical Fiber Amplifier 有权
    光纤放大器中的快速动态增益控制

    公开(公告)号：US20070058242A1

    公开(公告)日：2007-03-15

    申请号：US11550258

    申请日：2006-10-17

    申请人： Xiang Zhou ,  Martin Birk

    发明人： Xiang Zhou ,  Martin Birk

    IPC分类号： H01S3/00 ,  H04B10/12

    CPC分类号： H01S3/10007 ,  H01S3/06754 ,  H01S3/10015 ,  H01S3/302 ,  H04B10/2916 ,  H04B10/2942 ,  H04B10/296

    摘要： The present invention provides methods and apparatuses for controlling a gain of an optical fiber amplifier. Gain circuitry operates in an opened loop configuration and uses a predetermined function relating a power variation of at least one wavelength region with a pump power adjustment for at least one optical pump. Two approximate linear relationships between the input signal power variations and the required pump power adjustments are utilized in controlling the Raman fiber amplifier. Each approximate linear relationship includes at least one linear coefficient that relates a power variation for a specific wavelength region and a power adjustment of a specific Raman pump. The dynamic gain control technique is applicable to an Erbium-doped fiber/waveguide amplifier. Also, a dynamic gain control technique controls a backward-pumped Raman amplifier, in which the power variation is determined at one geographical location and the optical pumps are controlled at another geographical location.

    摘要翻译： 本发明提供了用于控制光纤放大器的增益的方法和装置。 增益电路以开环配置工作，并且使用将至少一个波长区域的功率变化与用于至少一个光泵的泵功率调整相关联的预定功能。 输入信号功率变化与所需泵浦功率调整之间的两个近似线性关系用于控制拉曼光纤放大器。 每个近似线性关系包括至少一个线性系数，其涉及特定波长区域的功率变化和特定拉曼泵的功率调整。 动态增益控制技术适用于掺铒光纤/波导放大器。 此外，动态增益控制技术控制反向泵浦拉曼放大器，其中在一个地理位置确定功率变化，并且将光泵控制在另一地理位置。

    Fast dynamic gain control in an optical fiber amplifier
    35.
    发明申请
    Fast dynamic gain control in an optical fiber amplifier 有权

    公开(公告)号：US20060187538A1

    公开(公告)日：2006-08-24

    申请号：US11273868

    申请日：2005-11-15

    申请人： Xiang Zhou ,  Martin Birk

    发明人： Xiang Zhou ,  Martin Birk

    IPC分类号： H01S3/00

    CPC分类号： H01S3/302 ,  H01S3/06754 ,  H01S3/094096 ,  H01S3/10015 ,  H01S2301/04 ,  H04B10/2916 ,  H04B10/296

    摘要： The present invention provides methods and apparatuses for controlling a gain of an optical fiber amplifier. Gain circuitry operates in an opened loop configuration and uses a predetermined function relating a power variation of at least one wavelength region with a pump power adjustment for at least one optical pump. Two approximate linear relationships between the input signal power variations and the required pump power adjustments are utilized in controlling the Raman fiber amplifier. Each approximate linear relationship includes at least one linear coefficient that relates a power variation for a specific wavelength region and a power adjustment of a specific Raman pump. The dynamic gain control technique is applicable to an Erbium-doped fiber/waveguide amplifier. Also, a dynamic gain control technique controls a backward-pumped Raman amplifier, in which the power variation is determined at one geographical location and the optical pumps are controlled at another geographical location.

    Arrangement for low cost path protection for optical communications networks
    38.
    发明授权
    Arrangement for low cost path protection for optical communications networks 有权
    用于光通信网络的低成本路径保护的安排

    公开(公告)号：US07551816B1

    公开(公告)日：2009-06-23

    申请号：US12152564

    申请日：2008-05-15

    申请人： Martin Birk ,  Angela Lan Chiu ,  John L. Strand

    发明人： Martin Birk ,  Angela Lan Chiu ,  John L. Strand

    IPC分类号： G02B6/26 ,  H04B10/08

    CPC分类号： H04B10/07955 ,  H04B10/032 ,  H04B10/077 ,  H04B10/07953

    摘要： An arrangement provides low cost path protection in an optical communications network. The arrangement has a portion 3 that provides (broadcasts) an outbound optical signal, and at least first and second transmitting portions 202, 206 transmit the outbound optical signal simultaneously onto at least first and second respective mutually distinct optical pathways 231, 232. Meanwhile, a selection arrangement 204 selects among plural incoming optical signals (via 1, 5) according to a SELECT control signal 228 to provide a selected signal, and an analyzer 222 analyzes characteristics of the selected signal to provide the SELECT control signal 228.

    摘要翻译： 一种布置在光通信网络中提供低成本路径保护。 该布置具有提供（广播）出站光信号的部分3，并且至少第一和第二传输部分202,206同时将出站光信号发射到至少第一和第二相应的相互不同的光学路径231,232上。同时， 选择装置204根据SELECT控制信号228在多个输入光信号（经由1,5）中选择提供所选择的信号，并且分析器222分析所选信号的特性以提供SELECT控制信号228。

    Selection Of A Signal Input From An Optical Fiber Member
    39.
    发明申请
    Selection Of A Signal Input From An Optical Fiber Member 失效
    选择光纤部件的信号输入

    公开(公告)号：US20080187311A1

    公开(公告)日：2008-08-07

    申请号：US12060303

    申请日：2008-04-01

    申请人： Martin Birk ,  Philip H. Gerard

    发明人： Martin Birk ,  Philip H. Gerard

    IPC分类号： H04J14/00

    CPC分类号： G01M11/33

    摘要： Methods and systems for analyzing optical parameters of a selected optical fiber member are disclosed. A signal input from an optical fiber member may be selected by instructing a corresponding optical separation device. The output from the corresponding optical separation device may be combined with the outputs of other optical separation devices using an optical coupler. A measurement circuit may measure the optical parameter from the output. Proper operation of an optical separation device may be validated by a monitoring circuit. The monitoring circuit may provide an indication to a user or may be processed by a diagnostic processor. A processing circuit may select one of the optical separation devices in order to measure the optical parameter for a corresponding optical fiber member and consequently may instruct an adjustment circuit to cause the selected optical fiber member to conform to a desired value of the optical parameter.

    摘要翻译： 公开了用于分析所选择的光纤部件的光学参数的方法和系统。 可以通过指示相应的光学分离装置来选择来自光纤构件的信号输入。 来自相应的光学分离装置的输出可以使用光耦合器与其它光学分离装置的输出组合。 测量电路可以从输出端测量光学参数。 光分离装置的正确操作可以通过监视电路来验证。 监视电路可以向用户提供指示，或者可以由诊断处理器来处理。 处理电路可以选择一个光学分离装置，以便测量对应的光纤部件的光学参数，并且因此可以指示调节电路使选定的光纤部件符合光学参数的期望值。

    System for flexible multiple broadcast service delivery over a WDM passive optical network based on RF block-conversion of RF service bands within wavelength bands
    40.
    发明授权
    System for flexible multiple broadcast service delivery over a WDM passive optical network based on RF block-conversion of RF service bands within wavelength bands 失效
    基于波段范围内RF服务频带的RF块转换的WDM无源光网络的灵活多广播业务传送系统

    公开(公告)号：US07085495B2

    公开(公告)日：2006-08-01

    申请号：US09916652

    申请日：2001-07-30

    申请人： Martin Birk ,  Patrick P. Iannone ,  Kenneth C. Reichmann ,  Nicholas J. Frigo ,  Cedric F. Lam

    发明人： Martin Birk ,  Patrick P. Iannone ,  Kenneth C. Reichmann ,  Nicholas J. Frigo ,  Cedric F. Lam

    IPC分类号： H04J14/00

    CPC分类号： H04J14/02 ,  H04J14/0298

    摘要： A system and method for simultaneous delivery of a plurality of independent blocks of 500 MHz digital broadcast television services, stacking a plurality of RF blocks on a plurality of spectrally sliced WDM optical bands. The method for delivering a plurality of video blocks to a user terminal serviced by a remote node comprises the steps of receiving, by a first WDM, a broadband signal from a broadband signal source, separating, by the first WDM, the broadband signal into a plurality of optical bands, modulating each of the plurality of optical bands with a composite signal representing data in a plurality of independent RF blocks to form a plurality of modulated signals, forwarding the plurality of modulated signals to a second WDM to form a combined broadcast signal, transmitting the combined broadcast signal over feeder fiber to a remote node, selecting a RF block for distribution over a distribution fiber to a conventional satellite set-up box at a user's site and forwarding the selected RF block to the user's site. A novel method and system for reducing spontaneous beat noise is also disclosed.

    摘要翻译： 一种用于同时传送500MHz数字广播电视服务的多个独立块的系统和方法，在多个频谱分片的WDM光谱带上堆叠多个RF块。 用于将多个视频块传送到由远程节点服务的用户终端的方法包括以下步骤：由第一WDM从宽带信号源接收宽带信号，由第一WDM将宽带信号分离成 多个光带，用表示多个独立RF块中的数据的复合信号调制多个光带中的每一个以形成多个调制信号，将多个调制信号转发到第二WDM以形成组合广播信号 通过馈线光纤将组合的广播信号发送到远程节点，通过分配光纤选择RF块以在用户的​​现场向传统的卫星设置盒传送，并将所选择的RF块转发到用户的站点。 还公开了一种用于减少自发节拍噪声的新颖方法和系统。