公开(公告)号：US20120294621A1

公开(公告)日：2012-11-22

申请号：US13468393

申请日：2012-05-10

Applicant: Joseph Mazzochette ,  Edward J. MacMullen ,  Jerome Lomurno

Inventor： Joseph Mazzochette ,  Edward J. MacMullen ,  Jerome Lomurno

IPC: H04B10/12

CPC classification number: H04B10/2575

Abstract: An apparatus for simulating radio frequency (RF) signal propagation characteristics in a wireless communication network is disclosed. The apparatus includes a set of optical modulators in electrical communication with corresponding ones of a set of RF terminals. A set of optical demodulators is in optical communication with corresponding ones of the set of optical modulators and corresponding ones of the set of RF terminals. A set of optical delay lines may be configured to be in optical communication with the corresponding ones of the set of optical modulators and the corresponding ones of the set of optical demodulators.

Abstract translation: 公开了一种用于模拟无线通信网络中的射频（RF）信号传播特性的装置。 该装置包括与一组RF终端中的相应电路电通信的一组光调制器。 一组光学解调器与该组光学调制器中的相应光学调制器和RF端子组中的对应的光学解调器进行光通信。 一组光学延迟线可以被配置为与所述一组光调制器中的对应的光调制器和所述一组光解调器中的对应的光延迟线光通信。

公开(公告)号：US08295710B2

公开(公告)日：2012-10-23

申请号：US13002551

申请日：2009-07-06

Applicant: Winter Marcus

Inventor： Winter Marcus

IPC: H04B10/12 ,  G02F1/03

CPC classification number: H04B10/505 ,  H04B10/541 ,  H04B10/548

Abstract: The invention describes a modulator for the quadrature modulation of an optical carrier signal with an I- and a Q-portion, where a first optical multimode interferometer (MMI) splits the optical carrier signal into four branches and that in pairs of branches the I-portion and the Q-portion respectively is modulated with a Mach-Zehnder-Structure and a second optical multimode interferometer (MMI) combines the modulated I-portion and Q-portion again to one quadrature modulated optical output signal (OS).

Abstract translation: 本发明描述了一种用于利用I和Q部分对光载波信号进行正交调制的调制器，其中第一光学多模干涉仪（MMI）将光载波信号分成四个分支，并且在成对的分支中I- 部分和Q部分分别用马赫 - 曾德结构进行调制，第二光学多模干涉仪（MMI）将调制的I部分和Q部分再次组合成一个正交调制的光输出信号（OS）。

公开(公告)号：US08295709B2

公开(公告)日：2012-10-23

申请号：US12755254

申请日：2010-04-06

Applicant: Kazuhiro Kunimatsu ,  Tsukasa Takahashi

Inventor： Kazuhiro Kunimatsu ,  Tsukasa Takahashi

IPC: H04B10/12

CPC classification number: H04B10/25133 ,  H04B10/671

Abstract: A dispersion compensation device includes a variable dispersion compensator configured to subject an input optical signal to dispersion compensation, an optical receiver configured to convert an optical signal subjected to dispersion compensation into an electrical signal, recover a clock signal and a received data signal from the electrical signal, and output clock lock information indicating whether the clock signal is locked to the electrical signal, a signal processor configured to output bit error rate information on the received data signal, and a controller configured to variably control a dispersion compensation value of the variable dispersion compensator based on the bit error rate information and the clock lock information.

Abstract translation: 色散补偿装置包括可变色散补偿器，被配置为使输入光信号进行色散补偿;光接收器，被配置为将经受色散补偿的光信号转换为电信号，从电信号中恢复时钟信号和接收数据信号 信号和输出时钟锁定信息，指示时钟信号是否被锁定到电信号;信号处理器，被配置为输出关于接收到的数据信号的误码率信息;以及控制器，被配置为可变地控制可变色散的色散补偿值 补偿器基于误码率信息和时钟锁信息。

公开(公告)号：US08294983B2

公开(公告)日：2012-10-23

申请号：US12472481

申请日：2009-05-27

Applicant: Takahiro Matsumoto

Inventor： Takahiro Matsumoto

IPC: H04B10/17 ,  H04B10/12

CPC classification number: G02B6/1226 ,  B82Y20/00 ,  H01S3/213 ,  H01S3/2308 ,  H01S5/0207 ,  H01S5/0218 ,  H01S5/041 ,  H01S5/1046 ,  H01S5/50

Abstract: In an optical amplifier including a metal layer having an incident/reflective surface adapted to receive incident light and output its reflective light, and a dielectric layer formed on an opposite surface of the metal layer opposing the incident/reflective surface, the incident light excites surface plasmon resonance light in the metal layer while the dielectric layer is excited, so that an extinction coefficient of the dielectric layer is made negative.

Abstract translation: 在包括具有适于接收入射光并输出其反射光的入射/反射表面的金属层的光放大器中，以及形成在与入射/反射表面相对的金属层的相对表面上的电介质层，入射光激发表面 在电介质层被激发的同时在金属层中的等离子体共振光，使得电介质层的消光系数为负。

公开(公告)号：US08290374B2

公开(公告)日：2012-10-16

申请号：US12646701

申请日：2009-12-23

Applicant: Junrui Li ,  Jing Nui ,  Chunyan Yang ,  Changbin Hu ,  Kai Liu

Inventor： Junrui Li ,  Jing Nui ,  Chunyan Yang ,  Changbin Hu ,  Kai Liu

IPC: H04B10/12

CPC classification number: H04B10/697 ,  H04B10/032 ,  H04J14/0295

Abstract: A dispersion compensation method and a dispersion compensation device in an optical communication system are provided. The method mainly includes the following steps. A dispersion compensation value transmitted through a working path at a second wavelength is received through a non-working path at a first wavelength in an optical communication system. The non-working path at the first wavelength and the working path at the second wavelength use the same service channel. Dispersion in the non-working path at the first wavelength is compensated according to the dispersion compensation value. Therefore, no matter the working path is a main path or a backup path, the dispersion compensation value on the non-working path can be accurately regulated in time, such that the dispersion of the working path reaches an optimal status each time after the protection switching occurs to the service, thereby ensuring the fast switching of the service.

Abstract translation: 提供了一种光通信系统中的色散补偿方法和色散补偿装置。 该方法主要包括以下步骤。 通过光通信系统中的第一波长的非工作路径接收通过第二波长的工作路径发送的色散补偿值。 第一波长的非工作路径和第二波长的工作路径使用相同的服务信道。 根据色散补偿值补偿在第一波长的非工作路径中的色散。 因此，无论工作路径为主路径还是备用路径，都能够及时准确地调整非工作路径上的色散补偿值，使得工作路径的分散在保护后每次达到最佳状态 对服务进行切换，从而确保服务的快速切换。

公开(公告)号：US08290363B2

公开(公告)日：2012-10-16

申请号：US12184273

申请日：2008-08-01

Applicant: Toshiaki Nakajima ,  Kenji Yasuhara

Inventor： Toshiaki Nakajima ,  Kenji Yasuhara

IPC: H04B10/08 ,  H04B10/12

CPC classification number: G01M11/3136 ,  H04B10/071

Abstract: An optical line monitoring apparatus, including: a group information recording portion which records group information about to which splitter respective terminators are connected; a normal information recording portion which records intensities of reflected lights from a plurality of terminators in a state in which a failure is not occurring in optical lines; a monitored information recording portion which records intensities of reflected lights from the plurality of terminators in failure monitoring time; an attenuation amount determination portion which determines a terminator the reflected light intensity of which is attenuated compared with the corresponding reflected light intensity in normal information; and a control portion which determines, if the intensities of the reflected lights of all the terminators connected to the same splitter are attenuated by the same value, that a failure has occurred between the test apparatus and the splitter to which all the terminators are connected.

公开(公告)号：US08284479B2

公开(公告)日：2012-10-09

申请号：US12543415

申请日：2009-08-18

Applicant: Youichi Akasaka ,  Takao Naito

Inventor： Youichi Akasaka ,  Takao Naito

IPC: H04B10/17 ,  H04B10/12

CPC classification number: H01S3/09408 ,  H01S3/0014 ,  H01S3/094053 ,  H01S3/1022

Abstract: A system for optical communication including an optical amplifier card configured to receive a plurality of pump laser modules. The optical amplifier card includes a receptacle configured to receive the pump laser module, a connector configured to couple the pump laser module to the optical amplifier card, a monitor configured to measure at least the optical output power of the pump laser module, and a pump combiner communicatively coupled to the monitor. The pump combiner is configured to receive a signal from the monitor indicating a drop in the output power of a first pump laser module below a threshold level, and, in response to the signal, switch the optical amplifier card from using the optical power of the first pump laser module to using the optical power of a second pump laser module without substantially affecting normal operation of the optical amplifier card.

Abstract translation: 一种用于光通信的系统，包括配置成接收多个泵激光器模块的光放大器卡。 光放大器卡包括被配置为接收泵浦激光器模块的插座，被配置为将泵激光器模块耦合到光放大器卡的连接器，配置成至少测量泵激光器模块的光输出功率的监视器，以及泵 组合器通信耦合到监视器。 泵组合器被配置为从监视器接收指示低于阈值水平的第一泵浦激光器模块的输出功率的下降的信号，并且响应于该信号，将光放大器卡从使用 第一泵激光模块，以使用第二泵激光器模块的光功率，而基本上不影响光放大器卡的正常工作。

公开(公告)号：US08280261B2

公开(公告)日：2012-10-02

申请号：US12519136

申请日：2007-12-14

Applicant: Gerardo Antonio Castanon Avila ,  Ivan Aritz Aldaya Garde

Inventor： Gerardo Antonio Castanon Avila ,  Ivan Aritz Aldaya Garde

IPC: H04B10/02 ,  H04B10/12 ,  H04B10/08 ,  H04B10/04

CPC classification number: H04L27/2331 ,  H04L27/223

Abstract: The invention relates to a device for regenerating the phase of an optically modulated signal with phase changes and based on two and three replicas, wherein the replicas refer to the number of identical signals that are obtained form the input signal. This regenerator is capable of regenerating the phase and period of any format of modulation of optical communications systems which are differential modulation with phase changes, such as: DISK, DQPSK, RZ-DQPSK, RZ-DQPSK, D8PSK, D8PSK, RZ-D16PSK, D16PSK. The regenerator design presented involves the regenerator being placed alter the multiplexer of a communications system and before the signal modulators and/or decoders. Thus the regenerator receives the signal leaving the multiplexer and this signal is input in an amplitude modulator.

Abstract translation: 本发明涉及一种用于通过相位改变再现光调制信号的相位并基于两个和三个副本的装置，其中复制品是指从输入信号获得的相同信号的数量。 该再生器能够再生具有相位变化的差分调制的光通信系统的任何格式的调制的相位和周期，例如：DISK，DQPSK，RZ-DQPSK，RZ-DQPSK，D8PSK，D8PSK，RZ-D16PSK， D16PSK。 提出的再生器设计涉及将再生器置换为通信系统的多路复用器，并且在信号调制器和/或解码器之前。 因此，再生器接收离开多路复用器的信号，并且该信号被输入到幅度调制器中。

公开(公告)号：US20120243881A1

公开(公告)日：2012-09-27

申请号：US13053851

申请日：2011-03-22

Applicant: Daniel S. Homa ,  Robert M. Harman ,  Christopher H. Lambert

Inventor： Daniel S. Homa ,  Robert M. Harman ,  Christopher H. Lambert

IPC: H04B10/12 ,  G02B6/04 ,  G02B6/44

CPC classification number: H04B10/25 ,  E21B47/123 ,  G02B6/4427 ,  G02B6/4483 ,  G02B6/504

Abstract: A fiber optic cable for use in a downhole environment is disclosed. The fiber optic cable includes a tube having an interior region; an optical fiber disposed in the interior region of the tube; a gas in the interior region; and a gel in the interior region, wherein the gel is configured to reduce stress on the optical fiber in the presence of the gas at a temperature substantially near the flashpoint of the gel. One or more seals can be used to seal the gel and the inert gas in the interior region. In various aspects, the fiber optic cable can be used in a downhole environment.

Abstract translation: 公开了一种用于井下环境的光缆。 光缆包括具有内部区域的管; 设置在所述管的内部区域中的光纤; 内部气体; 和内部区域中的凝胶，其中所述凝胶构造成在基本上接近凝胶闪点的温度下，在气体存在下减小光纤上的应力。 可以使用一个或多个密封件来密封内部区域中的凝胶和惰性气体。 在各个方面，光缆可以在井下环境中使用。

公开(公告)号：US20120237198A1

公开(公告)日：2012-09-20

申请号：US13512450

申请日：2009-12-03

Applicant: Anthony L. Bowman

Inventor： Anthony L. Bowman

IPC: H04B10/12 ,  H04B10/04 ,  H04J14/02

CPC classification number: G02B6/3604 ,  A61B6/56 ,  G02B6/4202 ,  H04B10/225 ,  H04B10/25

Abstract: This invention provides a fiber optic rotary joint (20) for enabling the transmission of digital optical signals across the interface between facing surfaces (26, 29) of a rotor and a stator (21, 22), comprising: a plurality of light sources (42A, 42B, 42C, . . . ) mounted on one of the rotor and stator, each light source including a first light source (43C) arranged to selectively generate a first optical signal at a first wave length and a second light source (43C) arranged to selectively generate a second optical signal at a second wavelength; a first plurality of light emitters (25) spaced along a first arc distance of the surface of the one of the rotor and stator for transmitting optical signals received from the light sources toward the facing surface of the other of the rotor and stator; a first plurality of first optical fibers severally communicating respective ones of the light sources with respective ones of the light emitters for conveying optical signals from each respective light source to the associated emitter; a second plurality of light receptors (31) spaced along a second arc distance on the surface of the other of the rotor and stator; and at least one light detector (36, 40) mounted on the other of the rotor and stator; and a second plurality of second optical fibers severally communicating respective ones of the light receptors with the light detector(s).

Abstract translation: 本发明提供了一种光纤旋转接头（20），用于使数字光信号跨越转子和定子（21,22）的相对表面（26,29）之间的界面传输，包括：多个光源（ 42A，42B，42C ...），每个光源包括布置成选择性地产生第一波长的第一光信号和第二光源（43C）的第一光源（43C） ），其被选择性地产生第二波长的第二光信号; 沿着所述转子和所述定子之一的表面的第一弧距离间隔开的第一多个发光体（25），用于将从所述光源接收的光信号朝向所述转子和定子的另一个的相对表面传输; 第一多个第一光纤，各自的光源与相应的发光器相通，用于将光信号从每个相应的光源传送到相关的发射器; 在所述转子和定子的另一个的表面上沿着第二弧距距离间隔开的第二多个光接收器（31）; 以及安装在所述转子和定子的另一个上的至少一个光检测器（36,40） 以及第二多个第二光纤，其中各个光接收体与光检测器分别连通。