公开(公告)号：US20040208537A1

公开(公告)日：2004-10-21

申请号：US10651746

申请日：2003-08-29

发明人： Ki-Cheol Lee ,  Yun-Je Oh ,  Tae-Sung Park ,  Jong-Kwon Kim

IPC分类号： H04B010/24

CPC分类号： H04J14/0282 ,  H04J14/0226 ,  H04J14/0227 ,  H04J14/0238 ,  H04J14/0247 ,  H04J14/0252 ,  H04Q11/0067 ,  H04Q11/0071 ,  H04Q2011/0064

摘要： A PON (Passive Optical Network) and method employing CDMA for upstream communications to avoid complicated systems such as Machine Access Control. The downstream communications are broadcast in a non-CDMA protocol such as TDM. The PON includes: A PON (Passive Optical Network) employing CDMA (Code Division Multiple Access) comprising: a plurality of ONTs (Optical Network Terminals) corresponding to subscribers; WDM filters for dividing upstream and downstream wavelengths; an OLT (Optical Line Terminal) for receiving optical signals transmitted from the ONTs and transmitting the received optical signals to a higher network, the OLT transmitting signals transmitted from the higher network into ONTs; and an optical coupler, wherein: each ONT includes a first switching unit connected to at least one lower interface, such as computers, a level transformer for converting Ethernet signals having levels of null0null and null1null into data signals of levels of nullnull1null and nullnull1null, a first code generator for generating CDMA codes as specific codes so as to discriminate each ONT, and a first multiplier for performing spread spectrum function by multiplying the data signals by the CDMA codes, thereby transmitting Ethernet signals transmitted from the lower interfaces into the higher network; and the OLT includes an optical receiver for receiving optical signals transmitted from the ONTs, a branching filter for branching upstream CDMA signals received through the optical receiver, a plurality of second code generators for generating codes for despread, a plurality of second multipliers for multiplying received signals by the codes generated from the second code generators, and a plurality of data decider for extracting data through correlation calculation, thereby transmitting Ethernet signals transmitted from higher interfaces into the higher network.

摘要翻译： PON（Passive Optical Network，无源光网络）和采用CDMA进行上行通信的方法，以避免机器访问控制等复杂系统。 下行通信以诸如TDM的非CDMA协议广播。 PON包括：采用CDMA（码分多址）的PON（被动光网络），包括：对应于用户的多个ONT（光网络终端）; 用于分割上游和下游波长的WDM滤波器; 用于接收从ONT发送的光信号并将接收到的光信号发送到较高网络的OLT（光线路终端），OLT将从较高网络发送的信号发送到ONT; 和光耦合器，其中：每个ONT包括连接到诸如计算机的至少一个下部接口的第一开关单元，用于将具有“0”和“1”电平的以太网信号转换成“ -1'和'+1'，第一代码发生器，用于产生CDMA代码作为特定代码以便区分每个ONT;以及第一乘法器，用于通过将数据信号乘以CDMA代码来执行扩频功能，由此发送以太网信号 从较低的接口传输到较高的网络; 并且OLT包括用于接收从ONT发送的光信号的光接收器，用于分支通过光接收器接收的上行CDMA信号的分支滤波器，用于生成用于解扩的代码的多个第二代码发生器，用于将所接收的乘法相乘的多个第二乘法器 通过由第二代码生成器生成的代码的信号，以及用于通过相关计算提取数据的多个数据判定器，从而将从高级接口发送的以太网信号发送到较高的网络。

公开(公告)号：US20040120712A1

公开(公告)日：2004-06-24

申请号：US10638378

申请日：2003-08-12

发明人： Eddie Kai Ho Ng ,  Michael Joseph McCloskey

IPC分类号： H04B010/24

CPC分类号： H04B10/077 ,  H04B10/07955 ,  H04J14/0221

摘要： A method and system for multi-level power management in an optical network is provided. They include three levels of power equalization. The first level of power management equalizes the powers of channels in a band of channels. The second level of power management equalizes the average powers of bands of channels on a fiber. The third level of control equalizes the powers of bands of channels on working and protection fibers for a path in the optical network. As a result, this multi-level power management in the network provides a dynamic, automatic method for the network to adjust to changing operating conditions and configurations and to maintain relatively stable network powers. Each level of power management may be implemented jointly or independently, and operates autonomously so that, for example, one modification comprises continuous first level control and only periodic second level control.

摘要翻译： 提供了一种用于光网络中多级电源管理的方法和系统。 它们包括三级功率均衡。 电源管理的第一级使频道频道的功率相等。 功率管理的第二级别使光纤上的通道的平均功率相等。 第三级控制使光网络中的路径的工作和保护光纤上的信道频带的功率相等。 因此，网络中的这种多级电源管理为网络提供了一种动态的，自动的方法来适应不断变化的运行条件和配置，并保持相对稳定的网络功率。 每个级别的功率管理可以联合地或独立地实现，并且自主地操作，使得例如一个修改包括连续的第一级控制和仅仅周期性的第二级控制。

公开(公告)号：US20040033079A1

公开(公告)日：2004-02-19

申请号：US10455774

申请日：2003-06-04

发明人： Samir Satish Sheth ,  Marvin R. Young ,  Jeffrey Lloyd Cox ,  John W. Ayres III

IPC分类号： H04B010/24

CPC分类号： H04B10/801 ,  Y10S370/907

摘要： The invention is relevant to optical fiber transmission systems, and in particular, pertains to the transceiver cards in an optical fiber transport system. In particular the invention teaches an improved transceiver card architecture that allows high density, flexibility and interchangeability of functionality.

摘要翻译： 本发明涉及光纤传输系统，特别涉及光纤传输系统中的收发信机卡。 特别地，本发明教导了改进的收发器卡架构，其允许功能的高密度，灵活性和可互换性。

公开(公告)号：US20040022536A1

公开(公告)日：2004-02-05

申请号：US10621588

申请日：2003-07-17

发明人： Jun-Ho Koh ,  Kyong-Joon Chun ,  Byung-Chang Kang ,  Yun-Je Oh

IPC分类号： H04B010/24

CPC分类号： H04Q11/0067 ,  H04B10/272 ,  H04J14/02 ,  H04Q11/0066 ,  H04Q11/0071

摘要： Disclosed is a broadcast/communication unified passive optical network system. The network system comprises: an optical line termination that time-division multiplexes the received digital broadcast signals, receives communication signals through the internet, and wavelength-division multiplexes and transmits the broadcast signals and the communication signals; a plurality of optical network units connected to the optical line termination in one-to-multi connection, each optical network unit receiving the broadcast signals and the communication signals from the optical line termination, time-division demultiplexing the broadcast signals, and sending the broadcast signals selected from the above broadcast signals in accordance with a subscriber control signal and the communicating signals; and, a plurality of setup boxes connected to the each optical network unit in one-to-multi connection, each setup box receiving the broadcast signals and communication signals from each corresponding optical network unit and sending the subscriber control signal inputted by a subscriber to the corresponding optical network unit.

摘要翻译： 公开了广播/通信统一的无源光网络系统。 网络系统包括：时分复用接收到的数字广播信号，通过因特网接收通信信号的光线路终端，以及波分复用并发送广播信号和通信信号; 多个光网络单元，以一对多连接方式连接到光线路终端，每个光网络单元从光线路终端接收广播信号和通信信号，对广播信号进行时分解复用，并发送广播 根据用户控制信号和通信信号从上述广播信号中选择的信号; 以及多个连接到每个光网络单元的设置盒，每个设置盒从每个对应的光网络单元接收广播信号和通信信号，并将用户输入的用户控制信号发送给 相应的光网络单元。

公开(公告)号：US20030194234A1

公开(公告)日：2003-10-16

申请号：US10140384

申请日：2002-05-06

发明人： Kamakshi Sridhar ,  An Ge ,  Wonhong Cho

IPC分类号： H04B010/24

CPC分类号： H04J14/0283 ,  H04J14/0227 ,  H04J14/0241 ,  H04Q11/0062 ,  H04Q11/0071 ,  H04Q2011/0086

摘要： A technique for assigning a wavelength to a new flow in WDM ring networks that minimizes the total number of OE and EO interfaces added to the network is described. A SuperSet comprising thirteen cases representing the spatial relationship between existing wavelengths and the new flow is identified. An OE/EO table identifies for each case in the SuperSet the total number of OE and EO interfaces added. A QoS table identifies an order of priority for selection of a wavelength given a traffic class of the new flow. A mapping of traffic in the network to one of the SuperSet cases is identified and the optimal case that minimizes the total number of OE/EO interfaces added is selected using the OE/EO table. In one embodiment, a wavelength corresponding to the selected case is assigned to the flow. In another embodiment, a determination is made using the QoS table and wavelength grades whether assigning the selected wavelength will result in an acceptable performance for all network traffic.

摘要翻译： 描述了一种用于将波长分配给WDM环形网络中的新流的技术，其将添加到网络的OE和EO接口的总数最小化。 确定了包含十三个表示现有波长与新流之间的空间关系的超集。 OE / EO表为SuperSet中的每个案例标识添加的OE和EO接口的总数。 QoS表识别给定新流的流量类别的波长的选择的优先级顺序。 识别网络中流量到SuperSet案例之一的映射，并使用OE / EO表选择最小化添加的OE / EO接口总数的最佳情况。 在一个实施例中，对应于所选择的情况的波长被分配给流。 在另一个实施例中，使用QoS表和波长等级确定是否分配所选择的波长将导致所有网络业务的可接受的性能。

公开(公告)号：US20030048513A1

公开(公告)日：2003-03-13

申请号：US10287109

申请日：2002-11-01

发明人： Scott H. Bloom ,  Victor J. Chan ,  James J. Alwan

IPC分类号： H04B010/24 ,  H04J014/06

CPC分类号： H04B10/1125 ,  H04B10/2587

摘要： An optical transceiver such as used, for example, in a wireless optical network (WON), includes multiple laser sources including a first laser source configured to transmit a first output channel beam having a first optical characteristic and at least a second laser source configured to transmit a second output channel beam having a second optical characteristic; multiple detectors including a first detector configured to detect a first input channel beam having the first optical characteristic and at least a second detector configured to detect a second input channel beam having the second optical characteristic; and multiple apertures including a first aperture through which the first output channel beam and the second input channel beam pass and a second aperture through which the second output channel beam and the first input channel beam pass.

摘要翻译： 诸如在无线光网络（WON）中使用的光收发器包括多个激光源，包括被配置为传输具有第一光学特性的第一输出通道光束的第一激光源和至少一个配置成 发射具有第二光学特性的第二输出通道光束; 多个检测器，包括被配置为检测具有第一光学特性的第一输入通道光束的第一检测器和被配置为检测具有第二光学特性的第二输入通道光束的至少第二检测器; 以及多个孔，包括第一输出通道光束和第二输入通道光束通过的第一孔径以及第二输出通道光束和第一输入通道光束通过的第二孔径。

公开(公告)号：US20040223761A1

公开(公告)日：2004-11-11

申请号：US10797814

申请日：2004-03-10

发明人： Jorg-Reinhardt Kropp

IPC分类号： H04B010/24

CPC分类号： H04B10/40 ,  G02B6/4206 ,  G02B6/4246

摘要： The invention relates to a bidirectional transmitting and receiving device having a transmitting component having an emission area of a first size, that emits light at a first wavelength, and a receiving component having a receiving area of a second size, that receives light at a second wavelength. The device further includes coupling optics for coupling a light between the transmitting component and the receiving component on the one hand and an optical waveguide that is to be coupled thereto on the other hand. According to the invention, the coupling optics have a diffraction structure that focuses light at the first wavelength and at the second wavelength differently, and the transmitting component and the receiving component are arranged alongside one another or one above the other, with transmitting component being located at the focus of the diffraction structure for the emitted wavelength, and light which is emitted from the transmitting component at the first wavelength being imaged on the end surface of the optical waveguide.

摘要翻译： 本发明涉及一种双向发送和接收装置，其具有发射部件，其具有第一尺寸的发射区域，其发射第一波长的光;以及接收部件，其具有第二尺寸的接收区域，该接收部件在第二波长处接收光 波长。 该装置还包括耦合光学器件，用于一方面在发射部件和接收部件之间耦合光，另一方面用于耦合光耦合到另一方面的光波导。 根据本发明，耦合光学器件具有以不同的方式聚焦第一波长和第二波长的光的衍射结构，并且发射部件和接收部件沿着彼此或彼此并排设置，其中发射部件位于 在发射波长的衍射结构的焦点处，并且从第一波长的透射分量发射的光被成像在光波导的端面上。

公开(公告)号：US20040120711A1

公开(公告)日：2004-06-24

申请号：US10472864

申请日：2004-02-13

发明人： J?ouml;rg-Peters Elbers ,  Uwe Fischer ,  Christoph Glingener ,  Manfred Lobjinski

IPC分类号： H04B010/24

CPC分类号： H04B10/0797 ,  H04B10/0793 ,  H04B10/07953

摘要： An optical transmission system is provided in which the signals are transmitted at different wavelengths between terminals of a transmission network and only those signals are regenerated whose quality parameters require regeneration. A management system, when deciding about the location of regeneration, takes the design and the properties of the transmission network including the existing regeneration possibilities and the possible routing into consideration.

摘要翻译： 提供了一种光传输系统，其中信号在传输网络的终端之间以不同的波长传输，并且仅这些信号被再生，其质量参数需要再生。 管理系统在决定再生的位置时，考虑到现有的再生可能性和可能的​​路由选择传输网络的设计和属性。

公开(公告)号：US20040109686A1

公开(公告)日：2004-06-10

申请号：US10646027

申请日：2003-08-22

发明人： Chao Xiang Shi

IPC分类号： H04B010/24

CPC分类号： H04J14/0221 ,  H04B10/25073 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/0212 ,  H04J14/0213

摘要： An all-optical reference node in an optical communication network detects the power in each channel and, using an optical power monitor and a series of voltage-controlled attenuators connected in a feedback loop, adjusts the power in each channel so as to equalize the power in all channels. The optical reference node also removes amplified spontaneous emissions. Likewise, the power of each channel added at an add/drop node is equalized to the power in the channels that pass through the add/drop node. Thus the power in the respective channels is equal through the network, and amplifiers located at intervals on the network are not driven into saturation as they attempt to amplify weaker signals. According to another embodiment, a simplified optical communication network contains only passive components.

摘要翻译： 光通信网络中的全光参考节点检测每个通道中的功率，并且使用连接在反馈回路中的光功率监视器和一系列压控衰减器来调整每个通道中的功率，以使功率均衡 在所有渠道。 光学参考节点还消除了放大的自发辐射。 同样，在加/减节点处添加的每个通道的功率与通过加/减节点的通道中的功率相等。 因此，各个信道中的功率通过网络相等，并且位于网络上的间隔的放大器在尝试放大较弱的信号时不会被驱动到饱和状态。 根据另一个实施例，简化的光通信网络仅包含无源组件。

公开(公告)号：US20040091270A1

公开(公告)日：2004-05-13

申请号：US10381817

申请日：2003-07-31

发明人： Youngwan Choi ,  Kyuman Cho

IPC分类号： H04B010/24

CPC分类号： H04B10/1149 ,  H04B10/40

摘要： The present invention relates to the optical transmitter, receiver and application apparatus thereof for OWLL (Optical WireLess Link) which transmits and receives the optical signals through the free space and FSON (Free Space Optical Network) system using OWLL. Photonic devices such as laser diode and photo detector and electronics for driving the photonic devices are formed directly on a single printed circuit board as a standardized module and the PCB is assembled with optical instrument which is also manufactured as a standardized optical module. Then, the optical transmitter, receiver and application apparatus thereof becomes small, light, cost-effective, multi-functional and reliable.

摘要翻译： 本发明涉及用于通过自由空间发送和接收光信号的OWLL（Optical WireLess Link）的光发射机，接收机和应用装置，以及使用OWLL的FSON（自由空间光网络）系统。 用于驱动光子器件的激光二极管和光电检测器等光子器件直接作为标准化模块形成在单个印刷电路板上，并且PCB也与制造为标准化光学模块的光学仪器组装在一起。 然后，其光发射机，接收机及其应用装置变得小巧，轻便，经济有效，多功能可靠。