Laser communication system
    1.
    发明授权
    Laser communication system 有权
    激光通讯系统

    公开(公告)号:US08687983B2

    公开(公告)日:2014-04-01

    申请号:US13287555

    申请日:2011-11-02

    Abstract: A laser communication system and method are disclosed. The laser communication system includes a laser receiver system to receive a frequency-shift keyed (FSK) optical signal encoded with a plurality of data signals. The laser receiver system including an FSK differential detection system that includes a plurality of differential detection filters that can each receive the FSK optical signal and generate an output. The FSK differential detection system can demodulate the FSK optical signal into a multi-bit digital code corresponding to a frequency of the FSK optical signal based on the output of each of the plurality of differential detection filters.

    Abstract translation: 公开了一种激光通信系统和方法。 激光通信系统包括用于接收用多个数据信号编码的频移键控(FSK)光信号的激光接收机系统。 该激光接收机系统包括一个FSK差分检测系统,该系统包括多个差分检测滤波器,每个差分检测滤波器可以接收FSK光信号并产生输出。 FSK差分检测系统可以基于多个差分检测滤波器的输出,将FSK光信号解调为与FSK光信号的频率对应的多位数字码。

    SPATIAL MULTIPLEXING FOR OPTICAL TRANSMISSION
    3.
    发明申请
    SPATIAL MULTIPLEXING FOR OPTICAL TRANSMISSION 审中-公开
    用于光传输的空间多路复用

    公开(公告)号:US20140029941A1

    公开(公告)日:2014-01-30

    申请号:US13560450

    申请日:2012-07-27

    CPC classification number: H04J14/04

    Abstract: A system includes an optical Y-junction coupler to receive a first modulated optical signal on a wide input path of the optical Y-junction coupler and to receive a second modulated optical signal on a narrow input path of the optical Y-junction coupler, wherein the optical Y-junction coupler generates a combined optical signal from signals received on the wide input path and the narrow input path. A multimode waveguide receives the combined optical signal from the optical Y-junction coupler and propagates a spatially multiplexed optical output signal along a transmission path.

    Abstract translation: 一种系统包括光学Y结耦合器,用于在光学Y形耦合耦合器的宽输入路径上接收第一调制光信号并且在光学Y形耦合耦合器的窄输入路径上接收第二调制光信号,其中 光学Y结耦合器从宽输入路径和窄输入路径上接收的信号产生组合光信号。 多模波导从光学Y结耦合器接收组合的光信号,并沿着传输路径传播空间复用的光输出信号。

    LASER COMMUNICATION SYSTEM
    4.
    发明申请
    LASER COMMUNICATION SYSTEM 有权
    激光通信系统

    公开(公告)号:US20130108279A1

    公开(公告)日:2013-05-02

    申请号:US13287555

    申请日:2011-11-02

    Abstract: A laser communication system and method are disclosed. The laser communication system includes a laser receiver system to receive a frequency-shift keyed (FSK) optical signal encoded with a plurality of data signals. The laser receiver system including an FSK differential detection system that includes a plurality of differential detection filters that can each receive the FSK optical signal and generate an output. The FSK differential detection system can demodulate the FSK optical signal into a multi-bit digital code corresponding to a frequency of the FSK optical signal based on the output of each of the plurality of differential detection filters.

    Abstract translation: 公开了一种激光通信系统和方法。 激光通信系统包括用于接收用多个数据信号编码的频移键控(FSK)光信号的激光接收机系统。 该激光接收机系统包括一个FSK差分检测系统,该系统包括多个差分检测滤波器,每个差分检测滤波器可接收FSK光信号并产生输出。 FSK差分检测系统可以基于多个差分检测滤波器的输出,将FSK光信号解调为与FSK光信号的频率对应的多位数字码。

    FIELD CONCENTRATING SURFACE ENHANCED RAMAN SPECTROSCOPY PLATFORMS
    5.
    发明申请
    FIELD CONCENTRATING SURFACE ENHANCED RAMAN SPECTROSCOPY PLATFORMS 审中-公开
    场浓度表面增强拉曼光谱平台

    公开(公告)号:US20130286388A1

    公开(公告)日:2013-10-31

    申请号:US13455611

    申请日:2012-04-25

    CPC classification number: G01N21/658

    Abstract: A field concentrating surface enhanced Raman spectroscopy (SERS) platform includes a signal amplifying material and a pattern of apertures extending through the signal amplifying material. The pattern of apertures includes a central aperture, and a plurality of radiation capturing apertures positioned around the central aperture. Each of the radiation capturing apertures has a diameter that is larger than a diameter of the central aperture. The platform further includes a substrate that supports the signal amplifying material and a channel that extends through the substrate. The channel is at least partially aligned with the central aperture that extends through the signal amplifying material.

    Abstract translation: 场集中表面增强拉曼光谱(SERS)平台包括信号放大材料和延伸穿过信号放大材料的孔的图案。 孔的图案包括中心孔和围绕中心孔定位的多个辐射捕获孔。 每个辐射捕获孔的直径大于中心孔的直径。 平台还包括支撑信号放大材料的基板和延伸穿过基板的通道。 通道至少部分地与延伸穿过信号放大材料的中心孔对准。

    Optical orthogonal frequency division multiplexed communications with coherent detection
    6.
    发明授权
    Optical orthogonal frequency division multiplexed communications with coherent detection 有权
    具有相干检测的光学正交频分复用通信

    公开(公告)号:US08064767B2

    公开(公告)日:2011-11-22

    申请号:US12045765

    申请日:2008-03-11

    Abstract: The present invention provides a system and method of optical communications that utilize coherent detection technique and optical orthogonal frequency division multiplexing for phase encoded data transmission. In particular the invention addresses a device and method for digital polarization compensation of optical signals with up to 100 Gb/s transmission rate received via an optical link. The polarization compensation operates in two modes: acquisition mode and tracking mode. The polarization recovery is performed at the receiver side using the received digital signal conversion into frequency domain and separate reconstruction of the polarization state in each spectral component.

    Abstract translation: 本发明提供一种利用相干检测技术和光学正交频分复用进行相位编码数据传输的光通信系统和方法。 特别地,本发明涉及用于经由光学链路接收的高达100Gb / s传输速率的光信号的数字偏振补偿的装置和方法。 偏振补偿工作在两种模式:采集模式和跟踪模式。 使用接收到的数字信号转换为频域并在每个频谱分量中分离重建偏振状态,在接收机侧执行偏振恢复。

    Optical orthogonal frequency division multiplexed communications with nonlinearity compensation
    7.
    发明授权
    Optical orthogonal frequency division multiplexed communications with nonlinearity compensation 有权
    光学正交频分复用通信与非线性补偿

    公开(公告)号:US07693428B2

    公开(公告)日:2010-04-06

    申请号:US12418060

    申请日:2009-04-03

    Abstract: The present invention discloses a transmitter and receiver for optical communications system, which provide compensation of the optical link nonlinearity. M-PSK modulating is used for data embedding in an optical signal in each WDM channel using orthogonal frequency division multiplexing (OFDM) technique. At the receiver side electrical output signals from a coherent optical receiver are processed digitally with the link nonlinearity compensation. It is followed by the signal conversion into frequency domain and information recovery from each subcarrier of the OFDM signal. At the transmitter side an OFDM encoder provides a correction of I and Q components of a M-PSK modulator driving signal to compensate the link nonlinearity prior to sending the optical signal to the receiver.

    Abstract translation: 本发明公开了一种用于光通信系统的发射机和接收机,其提供了光链路非线性的补偿。 使用正交频分复用(OFDM)技术,M-PSK调制用于每个WDM信道中的光信号中的数据嵌入。 在接收机侧,来自相干光接收机的电输出信号用链路非线性补偿数字地处理。 随后将信号转换成频域,并从OFDM信号的每个子载波进行信息恢复。 在发射机侧,OFDM编码器提供M-PSK调制器驱动信号的I和Q分量的校正,以在将光信号发送到接收机之前补偿链路非线性。

    OPTICAL ORTHOGONAL FREQUENCY DIVISION MULTIPLEXED COMMUNICATIONS WITH NONLINEARITY COMPENSATION
    8.
    发明申请
    OPTICAL ORTHOGONAL FREQUENCY DIVISION MULTIPLEXED COMMUNICATIONS WITH NONLINEARITY COMPENSATION 有权
    具有非线性补偿的光学正交频分多路通信

    公开(公告)号:US20090190929A1

    公开(公告)日:2009-07-30

    申请号:US12418060

    申请日:2009-04-03

    Abstract: The present invention discloses a transmitter and receiver for optical communications system, which provide compensation of the optical link nonlinearity. M-PSK modulating is used for data embedding in an optical signal in each WDM channel using orthogonal frequency division multiplexing (OFDM) technique. At the receiver side electrical output signals from a coherent optical receiver are processed digitally with the link nonlinearity compensation. It is followed by the signal conversion into frequency domain and information recovery from each subcarrier of the OFDM signal. At the transmitter side an OFDM encoder provides a correction of I and Q components of a M-PSK modulator driving signal to compensate the link nonlinearity prior to sending the optical signal to the receiver.

    Abstract translation: 本发明公开了一种用于光通信系统的发射机和接收机,其提供了光链路非线性的补偿。 使用正交频分复用(OFDM)技术,M-PSK调制用于每个WDM信道中的光信号中的数据嵌入。 在接收机侧,来自相干光接收机的电输出信号用链路非线性补偿数字地处理。 随后将信号转换成频域,并从OFDM信号的每个子载波进行信息恢复。 在发射机侧,OFDM编码器提供M-PSK调制器驱动信号的I和Q分量的校正,以在将光信号发送到接收机之前补偿链路非线性。

    MICROWAVE PHOTONIC DELAY LINE WITH SEPARATE TUNING OF OPTICAL CARRIER
    9.
    发明申请
    MICROWAVE PHOTONIC DELAY LINE WITH SEPARATE TUNING OF OPTICAL CARRIER 有权
    MICROWAVE光电延迟线与光载波分离调谐

    公开(公告)号:US20090067772A1

    公开(公告)日:2009-03-12

    申请号:US12234614

    申请日:2008-09-19

    CPC classification number: H01Q3/2676

    Abstract: This invention provides a tunable delay of an optical signal having a carrier with an angular frequency ω0 and a single side band having a signal band with a median angular frequency ωr. The delay line comprises at least a first, a second and a third integrated resonators coupled sequentially to a waveguide. The first and the second resonators have angular resonant frequencies ω1=ωrΔω and ω2=ωr+Δω respectively, where Δω is a deviation from the median frequency. The third resonator provides a phase delay difference between the phase at the optical carrier ω0 and the phase at the median frequency (Or equal to (ωr−ω0)Td, where Td is the time delay. The device provides an equal group delay to all frequency components in the output signal and also equal phase delay for all frequency components of an RF signal when the optical signal is downconverted at a photodetector. The device may find applications controlling the time delay to antenna elements in a phased array system.

    Abstract translation: 本发明提供具有角频率ω10的载波和具有中值角频率ω的信号频带的单边带的光信号的可调谐延迟。 延迟线包括至少一个顺序耦合到波导的第一,第二和第三集成谐振器。 第一和第二谐振器分别具有角共振频率ω1=ω加德尔莫多和欧米加=欧米加+多米耳加,其中德尔梅加是偏离中值频率。 第三谐振器在光载波ω0处的相位和中间频率(或等于(ωω-ω=)Td的相位之间提供相位延迟差,其中Td是时间延迟,该装置向所有 当光信号在光电检测器下变频时,RF信号的所有频率分量的相位延迟也相等。该装置可以找到控制相控阵列系统中天线元件的时间延迟的应用。

    Image recording and readout device based on light-stimulable phosphors
    10.
    发明授权
    Image recording and readout device based on light-stimulable phosphors 失效
    基于光刺激性荧光体的图像记录和读出装置

    公开(公告)号:US4661704A

    公开(公告)日:1987-04-28

    申请号:US754100

    申请日:1985-07-12

    CPC classification number: G21K4/00 G01T1/2014

    Abstract: An image recording and readout device has a light-stimulable phosphor layer for storing a radiation image. The image is read out of the phosphor layer by scanning the layer with a laser beam. A filter is provided between the phosphor layer and the laser to increase the coupling of the laser light into the phosphor layer. The filter passes stimulating laser radiation within an angular acceptance range and reflects stimulating radiation outside the acceptance range.

    Abstract translation: 图像记录和读出装置具有用于存储放射线图像的可光激发的磷光体层。 通过用激光束扫描该层,从磷光体层读出图像。 在荧光体层和激光器之间设置滤光器以增加激光与荧光体层的耦合。 过滤器将刺激激光辐射通过角度接受范围,并将刺激辐射反射到接受范围之外。

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