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    Optical ring network having enhanced security and reduced loss
    1.
    发明授权
    Optical ring network having enhanced security and reduced loss 失效
    光环网具有增强的安全性和减少的损耗

    公开(公告)号：US06748175B1

    公开(公告)日：2004-06-08

    申请号：US09333409

    申请日：1999-06-15

    申请人： Laura Ellen Adams ,  Jon Anderson ,  Robert Mario Broberg

    发明人： Laura Ellen Adams ,  Jon Anderson ,  Robert Mario Broberg

    IPC分类号： H04B1020

    CPC分类号： H04J14/0213 ,  H04J14/0206

    摘要： A fiber-optic WDM ring carries communication traffic among a plurality of nodes, each node associated with respective subscriber premises. The WDM ring includes an optical add-drop module (OADM) at each node for adding and dropping signals associated with that node. The WDM ring also includes active terminal equipment at each node for conditioning incoming and outgoing data and for converting between the optical and electrical domains. The OADM at each of at least some nodes, to be referred to as enhanced nodes, is situated at a site physically separated from the powered terminal equipment, and is coupled to the powered terminal equipment via an optical medium. At each enhanced node, traffic not destined for that node is routed through no more than one enclosure on subscriber premises that requires a connection. If there is such enclosure, it contains the OADM.

    摘要翻译： 光纤WDM环承载多个节点之间的通信业务，每个节点与相应的用户房屋相关联。 WDM环包括在每个节点处的用于添加和删除与该节点相关联的信号的光学分插模块（OADM）。 WDM环还包括在每个节点处的有源终端设备，用于调节进入和离开数据以及在光域和电域之间进行转换。 被称为增强节点的至少一些节点中的每一个处的OADM位于与被动终端设备物理分离的站点处，并且经由光学介质耦合到被动终端设备。 在每个增强型节点，不是目的地为该节点的流量通过不需要连接的用户驻地上的一个以上的机箱进行路由。 如果有这样的外壳，它包含OADM。

    Optical add-drop module with low loss and high isolation
    2.
    发明授权
    Optical add-drop module with low loss and high isolation 有权
    光分插模块具有低损耗和高隔离度

    公开(公告)号：US06577415B1

    公开(公告)日：2003-06-10

    申请号：US09333407

    申请日：1999-06-15

    申请人： Laura Ellen Adams ,  Jon Anderson ,  Robert Mario Broberg ,  Gadi Lenz

    发明人： Laura Ellen Adams ,  Jon Anderson ,  Robert Mario Broberg ,  Gadi Lenz

    IPC分类号： H04J1402

    CPC分类号： H04J14/0213 ,  H04J14/0206

    摘要： An optical add-drop module (OADM) includes in the through-path exactly two thin-film filters (TFFs) having respective passbands that approximately coincide in wavelength. Each TFF has a respective across-the-band isolation level, representing the smallest isolation achieved at any wavelength within the passband. The respective reflection characteristic curves of the two TFFs are at least partially complementary, such that the OADM isolation level exceeds the logarithmic sum of the across-the-band isolation levels of the respective TFFs.

    摘要翻译： 光学分插模块（OADM）在通路中包括正好两个薄膜滤波器（TFF），其具有波长近似一致的相应通带。 每个TFF具有相应的跨带隔离级别，表示在通带内的任何波长处实现的最小隔离。 两个TFF的相应反射特性曲线至少部分互补，使得OADM隔离电平超过相应TFF的跨带隔离电平的对数和。

    Broadband tunable semiconductor laser source
    6.
    发明授权
    Broadband tunable semiconductor laser source 失效
    宽带可调半导体激光源

    公开(公告)号：US6108362A

    公开(公告)日：2000-08-22

    申请号：US954305

    申请日：1997-10-17

    申请人： Laura Ellen Adams ,  Clyde George Bethea ,  Wei-Chiao Fang ,  Gerald Nykolak ,  Roosevelt People ,  Arthur Mike Sergent ,  Tawee Tanbun-Ek ,  Won-Tien Tsang

    发明人： Laura Ellen Adams ,  Clyde George Bethea ,  Wei-Chiao Fang ,  Gerald Nykolak ,  Roosevelt People ,  Arthur Mike Sergent ,  Tawee Tanbun-Ek ,  Won-Tien Tsang

    IPC分类号： H01S3/10 ,  H01S5/0625 ,  H01S5/10 ,  H01S5/00 ,  H01S3/08

    CPC分类号： H01S5/06258 ,  H01S5/10

    摘要： A tunable semiconductor laser comprises a gain section having an MQW active region, a uniform pitch grating DFB region, and first waveguide. A composite reflector, including a second MQW region and a second waveguide, forms a cavity resonator with the DFB region. A voltage applied to the composite reflector induces a quantum confined stark effect, thereby allowing the wavelength to be altered. In one embodiment, the current drive to the active region and the shape of the first waveguide (e.g., a raised-sine function) are mutually adapted so that N longitudinal modes have essentially the same threshold gain and so that the DFB region spanned by the first waveguide is segmented into N zones, each zone providing optical feedback at a different wavelength corresponding to a different longitudinal mode.

    摘要翻译： 可调谐半导体激光器包括具有MQW有源区，均匀间距光栅DFB区和第一波导的增益部。 包括第二MQW区域和第二波导的复合反射器与DFB区域形成空腔谐振器。 施加到复合反射器的电压引起量子限制的斯塔克效应，从而允许改变波长。 在一个实施例中，对有源区域的当前驱动和第一波导的形状（例如，升高的正弦函数）相互适应，使得N个纵向模式具有基本上相同的阈值增益，并且使得由 第一波导被分割成N个区域，每个区域提供对应于不同纵向模式的不同波长的光学反馈。

    Automatic configuration and optimization of optical transmission using raw error rate monitoring
    8.
    发明授权
    Automatic configuration and optimization of optical transmission using raw error rate monitoring 有权
    使用原始错误率监控自动配置和优化光传输

    公开(公告)号：US06889347B1

    公开(公告)日：2005-05-03

    申请号：US09881951

    申请日：2001-06-15

    申请人： Laura Ellen Adams ,  John Paul Mattia ,  Jonathan P. King

    发明人： Laura Ellen Adams ,  John Paul Mattia ,  Jonathan P. King

    IPC分类号： H04B10/02 ,  H04B10/08 ,  H04B10/158 ,  G01F11/00 ,  H04B10/00 ,  H04J14/02

    CPC分类号： H04B10/07953 ,  H04B10/69

    摘要： The system includes a receiver for receiving a bit stream; an error monitor for indicating a first error rate for a first set of data received in the bit stream; and an adjustable circuit for converting an incoming signal into the bit stream using a reference signal that is modulated using a control signal. The system also includes a subsystem for correlating the first error rate and the control signal to generate the reference signal. The control signal has an amplitude that is selected so that a second set of data received in the bit stream has a second error rate that is less than the first error rate.

    摘要翻译： 该系统包括用于接收位流的接收器; 用于指示在比特流中接收的第一组数据的第一错误率的错误监视器; 以及用于使用使用控制信号调制的参考信号将输入信号转换成比特流的可调节电路。 该系统还包括用于使第一错误率和控制信号相关以产生参考信号的子系统。 控制信号具有选择的幅度，使得在比特流中接收的第二组数据具有小于第一错误率的第二错误率。

    WDM optical networks arranged for internetworking with packet networks
    9.
    发明授权
    WDM optical networks arranged for internetworking with packet networks 有权
    WDM光网络布置成与分组网络进行网络互连

    公开(公告)号：US06798993B1

    公开(公告)日：2004-09-28

    申请号：US09574501

    申请日：2000-05-19

    申请人： Laura Ellen Adams ,  Malathi Veeraraghavan

    发明人： Laura Ellen Adams ,  Malathi Veeraraghavan

    IPC分类号： H04J1402

    CPC分类号： H04J14/021 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0284 ,  H04Q11/0066 ,  H04Q11/0071 ,  H04Q2011/0073 ,  H04Q2011/0088

    摘要： A connectionless packet network and an optical WDM network are interconnected by one or more optical interface modules (gateways) that include both optical to electrical interfaces, as well as a connection management module, or control element, that is arranged to control the OADM's and the configuration of lasers and port assignments within the gateways, such that a route through the optical network to a desired endpoint is selected. The OADM's can be programmed, (i.e., locally or remotely controlled by the control element) such that the wavelengths that can be added or dropped by an OADM can be changed, thereby allowing routes to be established through the optical network, from an originating gateway to a destination gateway. In addition, the optical interface modules can include a plurality tunable lasers that can be controlled such that routes can be established through the optical network without requiring changes to the routing table that associates particular endpoints with particular ports. The system can be operated in a “provisioned” mode, where connections are set up a priori (i.e., before actual traffic flow starts), or in a “switched” mode, where connections are set up on a session by session (call by call) basis. The interface modules can be integrated with the components otherwise present in conventional packet routers, or housed separately in intelligent gateways that interconnect conventional packet routers with OADM's on an optical WDM network.

    摘要翻译： 无连接分组网络和光WDM网络通过包括光电接口的一个或多个光接口模块（网关）以及连接管理模块或控制元件互连，所述连接管理模块或控制元件被布置成控制OADM和 配置网关内的激光器和端口分配，使得选择通过光网络到期望端点的路由。 OADM可以被编程（即，由控制元件本地或远程控制），使得可以改变由OADM添加或丢弃的波长，从而允许通过光网络从始发网关建立路由 到目的地网关。 此外，光接口模块可以包括多个可调激光器，其可以被控制，使得可以通过光网络建立路由，而不需要改变将特定端点与特定端口相关联的路由表。 该系统可以在“配置”模式下操作，其中连接先验地（即，在实际业务流开始之前）或在“切换”模式中建立连接，其中连接在会话上建立（由呼叫 呼叫）基础。 接口模块可以与传统分组路由器中存在的组件集成，或单独安装在将常规分组路由器与光学WDM网络上的OADM相互连接的智能网关中。