中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

28 records (took 0.143 seconds)

    Wavelength tunable laser
    21.
    发明授权
    Wavelength tunable laser 有权
    波长可调激光器

    公开(公告)号：US09001852B1

    公开(公告)日：2015-04-07

    申请号：US14023104

    申请日：2013-09-10

    Applicant: Google Inc.

    Inventor： Ryohei Urata ,  Pedram Zare Dashti ,  Cedric Fung Lam ,  Xiangjun Zhao ,  Hong Liu

    IPC: H01S3/10 ,  H01S5/024

    CPC classification number: H01S5/02415 ,  H01S5/026 ,  H01S5/0265 ,  H01S5/0612 ,  H01S5/12 ,  H01S5/4031 ,  H01S5/4087

    Abstract: The wavelength tunable laser includes a thermo-electric cooler (TEC), a distributed feedback portion, and a semiconductor optical amplifier (SOA). The distributed feedback portion is disposed on the thermo-electric cooler and has a plurality of distributed feedback (DFB) lasers connected in series. Each DFB laser is configured to output an optical signal within a different temperature dependent tunable range of wavelengths. Therefore, the distributed feedback portion outputs an optical signal from one of the DFB lasers. The SOA is optically connected to the distributed feedback portion. The SOA amplifies and modulates the optical signal outputted from the distributed feedback portion.

    Abstract translation: 波长可调激光器包括热电冷却器（TEC），分布式反馈部分和半导体光放大器（SOA）。 分布式反馈部分设置在热电冷却器上并且具有串联连接的多个分布式反馈（DFB）激光器。 每个DFB激光器被配置为在不同的温度依赖的可调谐波长范围内输出光信号。 因此，分布式反馈部分输出来自DFB激光器之一的光信号。 SOA与分布式反馈部分光学连接。 SOA放大并调制从分布式反馈部分输出的光信号。

    In-band optical interference mitigation for direct-detection optical communication systems
    24.
    发明授权
    In-band optical interference mitigation for direct-detection optical communication systems 有权

    公开(公告)号：US09998235B2

    公开(公告)日：2018-06-12

    申请号：US14991826

    申请日：2016-01-08

    Applicant: Google Inc.

    Inventor： Xiang Zhou ,  Ryohei Urata ,  Erji Mao ,  Hong Liu ,  Christopher Lyle Johnson

    IPC: H04B10/00 ,  H04B10/69

    CPC classification number: H04B10/6971 ,  H04B10/697

    Abstract: This disclosure provides systems, methods, and apparatus for mitigating the effects of interference signals on optical signals received at a direct-detection optical receivers. The optical receivers are capable of attenuating interference noise signals resulting from the interference between a transmitted optical signal transmitted from a transmitter to the optical receiver and one or more additional signals received at the optical receiver. The interference can be due to multi-path interference or due to in-band interference. The receivers include a tunable filter for filtering the received optical signal to remove the interference. A frequency offset module processes the received optical signal to determine a frequency offset indicative of the difference between the carrier frequencies of a modulated optical signal and an interference optical signal. The offset frequency and a bandwidth determined by the frequency offset module can be used to adjust the tunable filter to remove the interference signal from the received signal.

    SYSTEMS AND METHODS FOR INCREASING BANDWIDTH IN A COMPUTER NETWORK
    25.
    发明申请
    SYSTEMS AND METHODS FOR INCREASING BANDWIDTH IN A COMPUTER NETWORK 有权
    在计算机网络中增加带宽的系统和方法

    公开(公告)号：US20150222969A1

    公开(公告)日：2015-08-06

    申请号：US14169734

    申请日：2014-01-31

    Applicant: Google Inc.

    Inventor： Ryohei Urata ,  Hong Liu ,  Amin Vahdat ,  Christopher Lyle Johnson ,  Junlan Zhou ,  Alexander Shraer

    IPC: H04Q11/00

    CPC classification number: H04Q11/0005 ,  G06F13/4022 ,  H04Q11/0062 ,  H04Q2011/0015 ,  H04Q2011/0052 ,  Y02D10/14 ,  Y02D10/151

    Abstract: Systems and methods for increasing bandwidth in a computer network are provided. A computer network can include a first lower level switch having a first port and a second port. The computer network can include a second lower level switch having a first port and a second port. The computer network can include an upper level switch having respective ports directly coupled to ports of the first and second lower level switches. A third port of the upper level switch can couple to a first port of a passive optical splitter. The passive optical splitter can have second and third ports coupled to respective ports of the first and second lower level switches. The passive optical splitter can be configured to transmit signals received at its first port as output signals on both of its second and third ports.

    Abstract translation: 提供了一种用于增加计算机网络带宽的系统和方法。 计算机网络可以包括具有第一端口和第二端口的第一下级开关。 计算机网络可以包括具有第一端口和第二端口的第二下层开关。 计算机网络可以包括具有直接耦合到第一和第二下级交换机的端口的相应端口的上级交换机。 上级开关的第三端口可以耦合到无源分光器的第一端口。 无源光分路器可以具有耦合到第一和第二下层开关的相应端口的第二和第三端口。 无源光分路器可以被配置为将在其第一端口处接收的信号作为其第二和第三端口两端的输出信号进行发送。

    Flexible non-modular data center with reconfigurable extended-reach optical network fabric
    26.
    发明授权
    Flexible non-modular data center with reconfigurable extended-reach optical network fabric 有权
    灵活的非模块化数据中心，具有可重构的扩展光网络结构

    公开(公告)号：US08965203B1

    公开(公告)日：2015-02-24

    申请号：US13631325

    申请日：2012-09-28

    Applicant: Google Inc.

    Inventor： Amin Vahdat ,  Hong Liu ,  Ryohei Urata ,  Xiaoxue Zhao ,  Chris L. Johnson

    IPC: H04J14/00

    CPC classification number: H04J14/0282

    Abstract: The disclosure describes implementations of an apparatus including a plurality of racks, wherein each rack houses a plurality of networking devices and each networking device includes a communication port. An optical circuit switch can be coupled to each of the plurality of communication ports in one or more of the plurality of racks, and a plurality of top-of-rack (TOR) switches can be coupled to the optical circuit switch. Other implementations are disclosed and claimed.

    Abstract translation: 本公开描述了包括多个机架的设备的实现，其中每个机架容纳多个网络设备，并且每个网络设备包括通信端口。 光电路开关可以耦合到多个机架中的一个或多个中的多个通信端口中的每一个，并且多个顶架（TOR）开关可以耦合到光电路开关。 公开并要求保护其他实施方式。

Patent Agency Ranking