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1. 发明授权

US07956993B2 Method for increasing accuracy of measurement of mean polarization mode dispersion 有权
标题翻译：提高平均偏振模色散测量精度的方法
公开(公告)号：US07956993B2
公开(公告)日：2011-06-07
申请号：US12916820
申请日：2010-11-01
申请人： Mikhail Boroditsky , Mikhail Brodsky , Nicholas J. Frigo , Peter Magill
发明人： Mikhail Boroditsky , Mikhail Brodsky , Nicholas J. Frigo , Peter Magill
IPC分类号： G01N21/00
CPC分类号： G01M11/336 , G01M11/331 , H04B10/2569
摘要： A method of determining a mean square differential group delay associated with a length of optical fiber. The method including measuring a polarization mode dispersion vector as a function of frequency, using a frequency-domain polarization mode dispersion measurement apparatus. The method also including calculating a second-order polarization mode dispersion vector as a function of frequency by calculating a derivative of the polarization mode dispersion vector with respect to frequency. Also, calculating the mean of the magnitude of the second-order polarization mode dispersion vector to obtain a first result. Further, multiplying a proportionality coefficient by the first result to calculate the mean square differential group delay.
摘要翻译：一种确定与光纤长度相关的均方根差分群延迟的方法。该方法包括使用频域偏振模色散测量装置测量作为频率的函数的偏振模色散矢量。该方法还包括通过计算相对于频率的偏振模色散矢量的导数来计算作为频率的函数的二阶偏振模色散矢量。此外，计算二阶偏振模色散矢量的幅度的平均值以获得第一结果。此外，将比例系数乘以第一结果以计算均方差差群延迟。

2. 发明授权

US07454139B2 High-capacity packet-switched ring network 有权
标题翻译：大容量分组交换环网
公开(公告)号：US07454139B2
公开(公告)日：2008-11-18
申请号：US11480605
申请日：2006-07-03
申请人： Mikhail Boroditsky , Nicholas J. Frigo , Aleksandra Smiljanic
发明人： Mikhail Boroditsky , Nicholas J. Frigo , Aleksandra Smiljanic
IPC分类号： H04B10/00
CPC分类号： H04J14/0283 , H04J14/0212 , H04J14/0226 , H04J14/0241 , H04J14/0254 , H04L12/5602 , H04L2012/5632 , H04L2012/5649 , H04L2012/5679 , H04Q11/0005 , H04Q11/0066 , H04Q11/0478 , H04Q2011/002 , H04Q2011/0022 , H04Q2011/0033 , H04Q2011/0035 , H04Q2011/0064 , H04Q2011/0069 , H04Q2011/0092
摘要： A packet-switched WDMA ring network has an architecture utilizing packet stacking and unstacking for enabling nodes to access the entire link capacity by transmitting and receiving packets on available wavelengths. Packets are added and dropped from the ring by optical switches. A flexible credit-based MAC protocol along with an admission algorithm enhance the network throughput capacity.
摘要翻译：分组交换WDMA环网具有利用分组堆叠和拆包的架构，以使得节点能够通过发送和接收可用波长的分组来访问整个链路容量。数据包通过光开关从环路中添加和丢弃。灵活的基于信用的MAC协议以及接纳算法增强了网络吞吐能力。

3. 发明授权

US07366417B2 Delivering multicast services on a wavelength division multiplexed network using a configurable four-port wavelength selective crossbar switch 失效
标题翻译：使用可配置的四端口波长选择性交叉开关在波分复用网络上提供多播服务
公开(公告)号：US07366417B2
公开(公告)日：2008-04-29
申请号：US11328782
申请日：2006-01-10
申请人： Mark D. Feuer , Nicholas J. Frigo , Cedric F. Lam
发明人： Mark D. Feuer , Nicholas J. Frigo , Cedric F. Lam
IPC分类号： H04J14/00
CPC分类号： H04Q11/0005 , H04Q11/0062 , H04Q2011/0016 , H04Q2011/0022 , H04Q2011/0026 , H04Q2011/0032 , H04Q2011/0035 , H04Q2011/0047 , H04Q2011/0058
摘要： A method and a system in which selected wavelengths of a wavelength division multiplexed (WDM) signal are modulated with multicast data for multicasting data services on an optical network. The WDM signal is received from a hub node of the optical network, such as a unidirectional ring network or a bi-directional ring network. A four-port wavelength crossbar switch (4WCS) selectably switches selected wavelengths from the optical network to a modulator loop. The modulator loop includes a multicast modulator that modulates the selected plurality of wavelengths with the multicast data. Each modulated wavelength is then switched back to the optical network by the 4WCS switch, and sent to a plurality of subscriber nodes of the optical network. This architecture allows a facility provider to be physically separated from a content provider, and affords the flexibility of selectively delivering multicast content to individual subscribers.
摘要翻译：一种方法和系统，其中波分复用（WDM）信号的选定波长用组播数据进行调制，用于在光网络上组播数据业务。从光网络的集线器节点（例如单向环网或双向环网）接收WDM信号。四端口波长交叉开关（4WCS）可选择地将所选波长从光网络切换到调制器环路。调制器环路包括用多播数据调制所选择的多个波长的多播调制器。然后通过4WCS交换机将每个调制波长切换回光网络，并发送到光网络的多个订户节点。该架构允许设施提供者在物理上与内容提供商分离，并且提供选择性地将多播内容递送给个体用户的灵活性。

4. 发明授权

US07319817B1 System for transparent node for WDM shared “virtual ring” networks 失效
标题翻译：用于WDM共享“虚拟环”网络的透明节点系统
公开(公告)号：US07319817B1
公开(公告)日：2008-01-15
申请号：US11237542
申请日：2005-09-28
申请人： Nicholas J. Frigo , Patrick P. Iannone , Kenneth C. Reichmann , Aleksandra Smiljanic
发明人： Nicholas J. Frigo , Patrick P. Iannone , Kenneth C. Reichmann , Aleksandra Smiljanic
IPC分类号： H04B10/20 , H04B10/00 , H04J14/00
CPC分类号： H04J14/0227 , H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0252 , H04J14/0283 , H04J14/0286
摘要： A system and method for a transparent WDM metro ring architecture in which optics enables simultaneous provisioning of dedicated wavelengths for high-end user terminals, while low-end user terminals share wavelengths on “virtual rings”. All wavelengths are sourced by the network and remotely modulated at customer “End Stations” by low cost semiconductor optical amplifiers, which also serve as transmission amplifiers. The transparent WDM metro ring architecture permits the communication of information and comprises a fiber optical feeder ring, at least one fiber optical distribution ring, a network node (NN), at least one access node (AN) said network node and said at least one access node connected via said fiber optical feeder ring and at least one end station (ES) connected via said fiber optical distribution ring to said at least one access node, wherein said user is attached to said at least one end station. A simple node that supports bi-directional propagation in transparent WDM metro architectures using “virtual rings” is also described. A method for communicating information over a WDM fiber optical ring network architecture in a metro access arena using one or more wavelengths, which can be shared by a plurality of user terminals, each user terminal coupled to an end station comprises the steps of sending downstream data packets, sending optical chalkboard packets consisting of ones and sending control signals.
摘要翻译：一种用于透明WDM城域环形架构的系统和方法，其中光学器件能够为高端用户终端同时提供专用波长，而低端用户终端在“虚拟环”上共享波长。所有波长都由网络采购，并通过低成本的半导体光放大器在客户“端站”进行远程调制，这也是发射放大器。透明WDM城域环形架构允许信息的通信，包括光纤馈线环，至少一个光纤分配环，网络节点（NN），至少一个接入节点（AN），所述网络节点和所述至少一个经由所述光纤馈线环连接的接入节点和经由所述光纤配光环连接到所述至少一个接入节点的至少一个终端站（ES），其中所述用户附接到所述至少一个终端站。还描述了使用“虚拟环”在透明WDM城域架构中支持双向传播的简单节点。一种用于在城域接入竞技场中通过WDM光纤光环网架构传送信息的方法，其使用可由多个用户终端共享的一个或多个波长，耦合到终端站的每个用户终端包括以下步骤：发送下行数据数据包，发送由一个组成的光学黑板包和发送控制信号。

5. 发明授权

US06697574B2 Multiple input waveguide grating router for broadcast and multicast services 失效
标题翻译：用于广播和多播服务的多输入波导光栅路由器
公开(公告)号：US06697574B2
公开(公告)日：2004-02-24
申请号：US09822821
申请日：2001-04-02
申请人： Nicholas J. Frigo , Patrick P Iannone , Cedric F. Lam , Kenneth C Reichmann
发明人： Nicholas J. Frigo , Patrick P Iannone , Cedric F. Lam , Kenneth C Reichmann
IPC分类号： H04J1400
CPC分类号： H04Q11/0005 , H04J14/02 , H04Q2011/0015 , H04Q2011/0016 , H04Q2011/0032 , H04Q2011/0047 , H04Q2011/0049
摘要： An optical telecommunications network suitable for carrying broadcast and switched services. The network includes a wavelength division multiplexing (WDM) coupled to a waveguide grating router (WGR). In accordance with the invention, an adjacent input port is connected with the same optical content. Thus, its outputs are adjacent (or wrapped around). According, the optical power in each of the broadcast bands at the outputs remains the same but is reduced by a factor of two in power for each channel but occupying twice as many channels. This has the effect of increasing the SNR by a factor of two.
摘要翻译：适用于承载广播和交换业务的光通信网络。网络包括耦合到波导光栅路由器（WGR）的波分复用（WDM）。根据本发明，相邻的输入端口与相同的光学内容连接。因此，其输出是相邻的（或缠绕的）。据说，输出中每个广播频带的光功率保持不变，但每个频道的功率减少了2倍，但占用的频道数量是两倍。这具有将SNR增加一倍的效果。

6. 发明授权

US06577422B1 Long reach delivery of broadcast services using broadband optical sources and pre-compensation dispersion 失效
标题翻译：使用宽带光源和预补偿分散长距离传送广播业务
公开(公告)号：US06577422B1
公开(公告)日：2003-06-10
申请号：US09252860
申请日：1999-02-18
申请人： Nicholas J. Frigo , Patrick P. Iannone , Kenneth C. Reichmann
发明人： Nicholas J. Frigo , Patrick P. Iannone , Kenneth C. Reichmann
IPC分类号： H04B1000
CPC分类号： H04B10/25133 , H04B10/272 , H04B2210/254 , H04J14/0226 , H04J14/0232 , H04J14/0246 , H04J14/025 , H04J14/0282
摘要： A broadcast delivery system allows the delivery of broadband broadcast services over a WDM Passive Optical Network. These broadband services can be carried on optical broadband carriers or signals in a cost-effective manner by utilizing shared dispersion-compensated fiber (DCF) over a group of feeder lines or a group of PONs. A broadband optical signal is provided over a plurality of feeder lines. Each feeder line is connected to a remote node for distribution to subscribers. One dispersion-compensated fiber is shared for a plurality of feeder lines.
摘要翻译：广播传送系统允许通过WDM无源光网络传送宽带广播服务。通过在一组馈线或一组PON上利用共享色散补偿光纤（DCF），可以以成本有效的方式在光宽带载波或信号上承载这些宽带业务。宽带光信号被提供在多个馈线上。每个馈线连接到远程节点以分配给订户。一个色散补偿光纤被共享用于多个馈线。

7. 发明授权

US06445485B1 Micro-machine polarization-state controller 失效
标题翻译：微机极化状态控制器
公开(公告)号：US06445485B1
公开(公告)日：2002-09-03
申请号：US09754622
申请日：2001-01-04
申请人： Nicholas J. Frigo , Evan L. Goldstein , Lih-Yuan Lin , Chuan Pu , Robert William Tkach
发明人： Nicholas J. Frigo , Evan L. Goldstein , Lih-Yuan Lin , Chuan Pu , Robert William Tkach
IPC分类号： G02F103
CPC分类号： G02B6/272 , G02B6/2766 , G02B6/29395
摘要： Methods and systems for controlling the state of polarization of an optical beam using micro-machined devices are provided. By cascading a number of simple polarization state rotators integrated on a number of silicon substrates, the state of polarization of an optical beam can be effectively manipulated to any point on the Poincaré sphere.
摘要翻译：提供了使用微加工装置来控制光束的偏振状态的方法和系统。通过级联多个硅衬底上的许多简单的偏振态旋转器，光束的偏振状态可以有效地被操纵到庞加莱球体上的任意点。

8. 发明授权

US06222654B1 Optical node system for a ring architecture and method thereof 失效
公开(公告)号：US06222654B1
公开(公告)日：2001-04-24
申请号：US08905879
申请日：1997-08-04
申请人： Nicholas J. Frigo
发明人： Nicholas J. Frigo
IPC分类号： H04J1402
CPC分类号： H04J14/0201 , H04J14/0206 , H04J14/0213
摘要： An optical node system for an optical ring network reduces certain costs associated with current ring architectures by using at least a portion of the light from an incoming optical signal to transmit an outgoing optical signal. In accordance with certain embodiments, the node includes an optical multiplexer which receives optical signals having a plurality of wavelengths. The optical multiplexer can be configured to output optical signals having certain wavelengths and to route at least one optical signal from the ring of at least one particular wavelength (or wavelength band) to a corresponding optical transceiver. The optical transceiver receives the incoming optical signal of the particular wavelength routed from the optical multiplexer and transmits at least a portion of the light from the incoming optical signal having the particular wavelength. The optical transceiver can modulate user information onto the light of the particular wavelength and/or pass at least a portion of the incoming optical signal for transmission as an outgoing optical signal onto the optical ring network. Thus, the optical node system alleviates the need for nodes to have a laser tuned to the particular wavelength for transmitting an outgoing optical signal having the particular wavelength.

9. 发明授权

US6118565A Coherent optical communication system 失效
标题翻译：相干光通信系统
公开(公告)号：US6118565A
公开(公告)日：2000-09-12
申请号：US940755
申请日：1997-09-30
申请人： Nicholas J. Frigo
发明人： Nicholas J. Frigo
IPC分类号： H04J14/00 , H04B10/20 , H04B10/26 , H04J14/02 , H04B10/00
CPC分类号： H04B10/2587
摘要： A coherent optical system includes an optical coupler or combiner for combining a received upstream optical signal and an optical local oscillator signal. The coherent optical system further includes a coherent optical receiver which is configured to receive and process the combined optical signal from the optical coupler to retrieve upstream information from the upstream optical signal. In certain embodiments, the coherent optical communication system includes a central office having an optical source for generating a composite downstream optical signal made up of downstream optical signals of particular wavelengths (or sets of wavelengths). A downstream optical signal having a particular wavelength (or set of wavelengths) is routed to a downstream destination with a portion of the downstream optical signal (after modulation with upstream information) being returned to the central office as an upstream optical signal of the particular wavelength (or set of wavelengths) which is part of a composite upstream optical signal. At the central office, the optical coupler or combiner combines the received upstream optical signal and the optical local oscillator signal, and the coherent optical receiver processes the combined optical signal. The optical source for generating the downstream optical signals can be the same or a similar optical source for generating the local oscillator signal. Thus, the coherent optical system can alleviate the problems and costs associated with generating the local oscillator signal because the same or a similar source is readily available. Using the same or similar optical source to generate the downstream optical signals and the local oscillator system permits an increase in capacity without the additional cost of wavelength-registered and -stabilized optical sources at the subscriber locations.
摘要翻译：相干光学系统包括用于组合接收的上行光信号和光本地振荡器信号的光耦合器或组合器。相干光学系统还包括相干光接收器，其被配置为从光耦合器接收并处理组合的光信号以从上游光信号中检索上游信息。在某些实施例中，相干光通信系统包括具有用于产生由特定波长（或一组波长）的下行光信号组成的复合下行光信号的光源的中心局。具有特定波长（或一组波长）的下行光信号被路由到具有下游光信号的一部分（在具有上行信息的调制之后）的下游目的地作为特定波长的上行光信号返回到中心局（或一组波长），其是复合上行光信号的一部分。在中心局，光耦合器或组合器组合接收的上行光信号和光本地振荡器信号，并且相干光接收机处理组合的光信号。用于产生下行光信号的光源可以是相同的或用于产生本地振荡器信号的类似的光源。因此，相干光学系统可以减轻与产生本地振荡器信号相关的问题和成本，因为相同或相似的源是容易获得的。使用相同或相似的光源来产生下行光信号，并且本地振荡器系统允许增加容量，而不需要在用户位置处波长注册和稳定的光源的附加成本。

10. 发明授权

US6014477A Article comprising a photostrictive switching element 失效
标题翻译：文章包括光致伸缩开关元件
公开(公告)号：US6014477A
公开(公告)日：2000-01-11
申请号：US926213
申请日：1997-09-09
申请人： Bradley Paul Barber , David John Bishop , Nicholas J. Frigo , Peter Ledel Gammel
发明人： Bradley Paul Barber , David John Bishop , Nicholas J. Frigo , Peter Ledel Gammel
IPC分类号： G02B6/35 , G02B26/02 , G02F1/01 , G02B6/26
CPC分类号： G02B6/3568 , G02B26/02 , G02F1/0126 , G02B6/3512 , G02B6/3548 , G02B6/358
摘要： A switching element according to this invention comprises a photostrictive member. Exposing the member to control light results in a dimensional change in the material. This change is utilized for changing the relative position between an optical fiber and another element, exemplarily a further fiber, a corrugated member, or a mirror, such that signal radiation is directed to a predetermined output port. A variety of exemplary switching elements are disclosed, including interferometric, beam-steering, evanescent field and mode conversion switching elements. Disclosed are also optical communication systems that utilize such switching elements, including passive optical networks.
摘要翻译：根据本发明的开关元件包括光致伸缩构件。暴露成员控制光导致材料的尺寸变化。该改变用于改变光纤和另一元件之间的相对位置，例如另外的光纤，波纹部件或反射镜，使得信号辐射被引导到预定的输出端口。公开了各种示例性的开关元件，包括干涉测量，光束转向，消逝场和模式转换开关元件。还公开了利用这种开关元件（包括无源光网络）的光通信系统。

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