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120 条记录 (耗时 0.028 秒)

    Method and system for performing signal analysis using a hybrid photonic-electronic processor
    1.
    发明授权
    Method and system for performing signal analysis using a hybrid photonic-electronic processor 有权

    公开(公告)号：US11901949B2

    公开(公告)日：2024-02-13

    申请号：US18068921

    申请日：2022-12-20

    申请人： Raytheon Company

    发明人： Vahid Ataie

    IPC分类号： H04B10/54 ,  H04B10/556 ,  H04B10/50

    CPC分类号： H04B10/541 ,  H04B10/503 ,  H04B10/556

    摘要： An apparatus for generating a time-delayed product of two independent signals includes a fixed-wavelength laser. A first optical modulator is optically coupled to the fixed-wavelength laser and configured to modulate a fixed wavelength optical carrier with a first input signal of a set of input signals. The apparatus also includes a tunable laser. A second optical modulator is optically coupled to the tunable laser and configured to modulate a tunable optical carrier with a second input signal of the set of input signals. The apparatus also includes a dispersive element coupled to the second optical modulator, a first optical detector coupled to the dispersive element, a third optical modulator optically coupled to the first optical detector and the first optical modulator, an optical 90-degree hybrid element optically coupled to the third optical modulator, and a plurality of optical detectors optically coupled to the optical 90-degree hybrid element.

    Broadband isolation low-loss ISM/MB-HB tunable diplexer
    3.
    发明授权
    Broadband isolation low-loss ISM/MB-HB tunable diplexer 有权

    公开(公告)号：US09985682B2

    公开(公告)日：2018-05-29

    申请号：US14523065

    申请日：2014-10-24

    申请人： Qorvo US, Inc.

    发明人： Nadim Khlat ,  Marcus Granger-Jones

    IPC分类号： H04B1/00 ,  H04B1/50 ,  H04B10/556 ,  H04L5/08 ,  H04L27/20

    CPC分类号： H04B1/50 ,  H04B1/0057 ,  H04B10/556 ,  H04L5/08 ,  H04L27/2085

    摘要： Embodiments of a tunable radio frequency (RF) diplexer and methods of duplexing transmission and receive signals are disclosed. In one embodiment, the RF diplexer includes a first hybrid coupler, a second hybrid coupler, and an RF filter circuit, and a phase inversion component. Both the RF filter circuit and the phase inversion component are connected between the first hybrid coupler and the second hybrid coupler. In some embodiments, the phase inversion component is provided by the RF filter circuit, while in other embodiments, the phase inversion component is provided separately. The phase inversion component is configured to provide a differential phase shift. The benefit of introducing the differential phase shift is that it provides increased isolation and broadband isolation between the different frequency bands being diplexed by the RF diplexer.

    Method and Optical Transmitter Device for Creating an Optical Binary Digital Transmit Signal
    4.
    发明申请
    Method and Optical Transmitter Device for Creating an Optical Binary Digital Transmit Signal 审中-公开

    公开(公告)号：US20180069635A1

    公开(公告)日：2018-03-08

    申请号：US15685141

    申请日：2017-08-24

    申请人： ADVA Optical Networking SE

    发明人： Michael Eiselt ,  Christoph Wagner

    IPC分类号： H04B10/516 ,  H04J14/02

    CPC分类号： H04B10/516 ,  H04B10/504 ,  H04B10/556 ,  H04J14/02

    摘要： A method for creating an optical binary digital transmit signal to be supplied to an optical transmission link including: operating an optical transmitter in such a state that mode hopping occurs between a predefined first and a predefined second optical mode of the optical transmitter if a binary digital modulation signal is supplied to the optical transmitter and creating a modulated optical output signal of the optical transmitter corresponding to the binary digital modulation signal supplied to the optical transmitter. The modulated optical output signal is optically filtered in such a way that at least a portion of the optical power spectrum of the modulated optical output signal caused by a selected one of the first and second optical modes is suppressed or at least substantially attenuated.

    Optical modulator
    6.
    发明授权
    Optical modulator 有权

    公开(公告)号：US09703169B2

    公开(公告)日：2017-07-11

    申请号：US14764678

    申请日：2014-01-22

    申请人： Sumitomo Osaka Cement Co., Ltd.

    发明人： Miki Okamura ,  Tokutaka Hara

    IPC分类号： G02F1/225 ,  H04B10/556 ,  G02B6/126 ,  H04J14/06 ,  G02F1/035 ,  G02F1/21 ,  G02B6/12

    CPC分类号： G02F1/225 ,  G02B6/126 ,  G02B2006/12164 ,  G02F1/035 ,  G02F1/2255 ,  G02F2001/212 ,  G02F2201/18 ,  H04B10/556 ,  H04J14/06

    摘要： An aspect of the present invention is an optical modulator, comprising a waveguide substrate and a multiplexing optical system. The waveguide substrate includes a first modulation portion, a second modulation, a first optical path and a second optical path. The multiplexing optical system includes a first surface and a second surface. First output light output from the first optical path and second output light output from the second optical path are input from the first surface and are output after there are combined at a combining point of the second surface. An optical path length between the first surface and the combining point in the first output light is larger than that of in the second output light. An optical path length between the first modulation portion and the first surface and an optical path length between the second modulation portion and the first surface are different.

    Differential TWE MZM driver for silicon photonics
    9.
    发明授权
    Differential TWE MZM driver for silicon photonics 有权

    公开(公告)号：US09606416B2

    公开(公告)日：2017-03-28

    申请号：US15068334

    申请日：2016-03-11

    申请人： Finisar Corporation

    发明人： Gilles P. Denoyer

    IPC分类号： G02F1/225 ,  G02B6/14 ,  H04B10/556 ,  G02F1/21

    CPC分类号： G02F1/2255 ,  G02B6/14 ,  G02F1/2257 ,  G02F2001/212 ,  G02F2201/126 ,  H04B10/556

    摘要： A differential TWE MZM includes a differential driver, first and second capacitors, and first and second terminations. The differential driver includes a first differential output and a second differential output that collectively form a differential pair. The first differential output is DC coupled to a first arm optical phase shifter of a TWE MZM. The second differential output is DC coupled to a second arm optical phase shifter of the TWE MZM. The first capacitor AC couples the second differential output to the first arm optical phase shifter. The second capacitor AC couples the first differential output to the second arm optical phase shifter. The first and second terminations are coupled to, respectively, the first or second arm optical phase shifter.

    OPTICAL TRANSMISSION APPARATUS AND OPTICAL TRANSMISSION METHOD
    10.
    发明申请
    OPTICAL TRANSMISSION APPARATUS AND OPTICAL TRANSMISSION METHOD 审中-公开
    光传输装置和光传输方法

    公开(公告)号：US20160337036A1

    公开(公告)日：2016-11-17

    申请号：US15110878

    申请日：2014-01-31

    申请人： MITSUBISHI ELECTRIC CORPORATION

    发明人： Tsuyoshi YOSHIDA

    IPC分类号： H04B10/2507 ,  H04B10/556 ,  H04B10/58 ,  H04B10/61 ,  H04B10/532 ,  H04B10/40

    CPC分类号： H04B10/2507 ,  H04B10/40 ,  H04B10/532 ,  H04B10/556 ,  H04B10/58 ,  H04B10/616

    摘要： An optical emission unit includes a signal arrangement unit that generates respective pairs of phase-conjugate signals of a plurality of systems on the basis of externally input signals of a plurality of systems, mixes together the pairs of phase-conjugate signals, and then arranges the pairs of phase-conjugate signals discretely in orthogonally polarized electric fields, and an optical modulation unit that converts electric signals from the signal arrangement unit into optical signals and outputs the optical signals to the optical transmission unit, and the optical reception unit includes a photoelectric conversion unit that converts the optical signals transmitted by the optical transmission unit into electric signals, and a signal reconstruction unit that reconstructs the original signals of the plurality of systems by synthesizing the intermixed and discretely arranged signals from the photoelectric conversion unit.

    摘要翻译： 光发射单元包括信号布置单元，其基于多个系统的外部输入信号生成多个系统的相应的一对相位共轭信号，将该对共轭信号对混合在一起， 在正交极化电场中离散的成对的相位共轭信号，以及将来自信号配置单元的电信号转换为光信号并将光信号输出到光传输单元的光调制单元，并且光接收单元包括光电转换 单元，其将由光传输单元发送的光信号转换为电信号;以及信号重建单元，通过合成来自光电转换单元的混合和离散布置的信号来重建多个系统的原始信号。