公开(公告)号：EP3164953B1

公开(公告)日：2018-12-05

申请号：EP14734483.2

申请日：2014-07-01

申请人： Telefonaktiebolaget LM Ericsson (publ)

发明人： PULERI, Marzio ,  D'ERRICO, Antonio ,  MOLONY, Anna

IPC分类号： H04B10/64 ,  H01Q3/26

CPC分类号： H04B10/64 ,  G01S7/02 ,  G01S2013/0254 ,  H01Q3/2676 ,  H01Q21/22 ,  H04B10/506 ,  H04B2210/006 ,  H04L7/0075

摘要： A feed signal generator (10) for a phased array antenna, comprising: an input (12) to receive an optical spectrum having first and second phase-locked spectral components, respectively having first and second optical frequencies; wavelength selective separator apparatus (14) to separate the optical spectrum into a first optical signal being the first spectral component and a second optical signal being the second spectral component; an optical time delay element (16) to apply a time delay to the first optical signal to form a delayed optical signal; a heterodyning device (20) to heterodyne the delayed optical signal and the second optical signal to generate a feed signal (22) having a power proportional to a product of the amplitudes of the second and delayed optical signals and a phase proportional to the time delay; and optical amplitude control apparatus (18) to set an amplitude of the delayed optical signal such that the product of said amplitudes causes the power of the feed signal to have a preselected value.

公开(公告)号：EP3047582B1

公开(公告)日：2017-11-08

申请号：EP14776970.7

申请日：2014-09-16

申请人： Alcatel Lucent

发明人： KANEDA, Noriaki

IPC分类号： H04B10/50 ,  H04B10/64

CPC分类号： H04J14/0298 ,  H04B10/506 ,  H04B10/61 ,  H04B10/64 ,  H04J14/06

公开(公告)号：EP3219062A1

公开(公告)日：2017-09-20

申请号：EP15703569.2

申请日：2015-02-09

申请人： Telefonaktiebolaget LM Ericsson (publ)

发明人： CAVALIERE, Fabio ,  SECONDINI, Marco

IPC分类号： H04L25/03 ,  H04B10/61

CPC分类号： H04B10/616 ,  G02F2/002 ,  H04B10/6165 ,  H04B10/64 ,  H04J14/02 ,  H04L25/03178 ,  H04L2025/03675 ,  H04Q2011/0011

摘要： A digital signal processing, DSP, unit (10) for use in a coherent optical receiver for an optical communications network. The DSP unit comprises an adaptive equaliser (12) and a processing block (22). The equaliser (12) comprises input ports for receiving electrical signals, each corresponding to a different state of polarization of an optical signal received by the coherent optical receiver,and output ports,each connected to a processing branch (14). A processing branch comprises a symbol sequence estimator, SSE, (16) and a carrier phase estimator, CPE, (18) comprising an input for receiving signal taped from an output of the processing branch. An output of the CPE is connected to a phase adjuster (20) interconnecting the respective output port of the equaliser and the SSE. The processing block (22) is connected to an output of the CPE,an output of the processing branch and at least one of the output of the phase adjuster and the outputs of the equalizer.

摘要翻译： 数字信号处理DSP单元（10），用于光通信网络的相干光接收机。 DSP单元包括自适应均衡器（12）和处理块（22）。 均衡器（12）包括用于接收电信号的输入端口，每个输入端口对应于由相干光接收器接收的光信号的不同极化状态，以及输出端口，每个输出端口连接到处理分支（14）。 处理分支包括符号序列估计器SSE（16）和包括用于接收从处理分支的输出端录制的信号的输入端的载波相位估计器CPE（18）。 CPE的输出连接到互连均衡器和SSE的相应输出端口的相位调整器（20）。 处理块（22）连接到CPE的输出端，处理分支的输出端以及相位调整器的输出端和均衡器的输出端中的至少一个。

公开(公告)号：EP3021543B1

公开(公告)日：2017-09-13

申请号：EP13890447.9

申请日：2013-07-31

申请人： Huawei Technologies Co., Ltd.

发明人： YI, Xingwen ,  HONG, Cheng ,  QING, Huaping

IPC分类号： H04L27/26 ,  H04B10/61 ,  H04B10/64

CPC分类号： H04L27/2659 ,  H04B10/615 ,  H04B10/6164 ,  H04B10/64 ,  H04J14/0298 ,  H04L27/26 ,  H04L27/2657 ,  H04L27/2682 ,  H04L27/2697

公开(公告)号：EP3183772A1

公开(公告)日：2017-06-28

申请号：EP14752897.0

申请日：2014-08-20

申请人： Telefonaktiebolaget LM Ericsson (publ)

发明人： GHELFI, Paolo ,  ONORI, Daniel ,  SERAFINO, Giovanni ,  LAGHEZZA, Francesco ,  SCOTTI, Filippo ,  BOGONI, Antonella

IPC分类号： H01Q3/26 ,  H01Q21/06

CPC分类号： H01Q3/2676 ,  H01Q1/246 ,  H01Q21/22 ,  H04B10/2507 ,  H04B10/2575 ,  H04B10/25758 ,  H04B10/40 ,  H04B10/505 ,  H04B10/64

摘要： A transceiver for a phased array antenna comprises a laser light source arranged to provide an optical spectrum comprising a plurality of spaced wavelengths. The transceiver further comprises a dispersion unit arranged to introduce a delay to a plurality of spectral components of the optical spectrum associated with the spaced wavelengths. The delay is dependent on the wavelength of the spectral components of the optical spectrum. The transceiver further comprises a first optical filter configured to select a plurality of spectral components received from the dispersion unit. The transceiver further comprises a first heterodyning device configured to generate a signal for transmission by the phased array antenna by heterodyning the selected spectral components associated with different ones of the spaced wavelengths of the laser light source. The transceiver is configured to receive signals from the phased array antenna. The transceiver further comprises a modulator configured to modulate spaced wavelengths from the said laser light source with the received signals. The spaced wavelengths are associated with the spectral components used to generate the signal for transmission. The transceiver further comprises a second heterodyning device configured to heterodyne spectral components associated with different ones of the spaced wavelengths of the laser light source.

摘要翻译： 用于相控阵列天线的收发器（1; 101; 201）包括被配置为提供包括多个间隔波长的光谱的激光光源（3）。 该收发器进一步包括分散单元（8），该分散单元布置成向与间隔波长相关联的光谱的多个光谱分量引入延迟。 延迟取决于光谱的光谱分量的波长。 该收发器还包括被配置为选择从分散单元接收的多个光谱分量的第一光学滤波器（32; 132a; 232）。 该收发器进一步包括第一外差设备（36），其被配置为通过对与激光光源的不同间隔波长相关联的选定光谱分量进行外差来产生由相控阵天线进行传输的信号。 收发器配置为从相控阵天线接收信号。 该收发器还包括调制器，该调制器被配置为用所接收的信号来调制来自所述激光源（3）的间隔波长。 间隔的波长与用于生成传输信号的频谱分量相关联。 收发器进一步包括第二外差装置（50），其被配置为外差与激光光源的不同间隔波长相关联的光谱分量。

公开(公告)号：EP3155384A1

公开(公告)日：2017-04-19

申请号：EP15729819.1

申请日：2015-06-16

申请人： ETH Zürich

发明人： HUGI, Andreas ,  FERREIRA VILLARES, Gustavo Filipe ,  FAIST, Jérôme

IPC分类号： G01J3/10 ,  G01J3/433 ,  G01J9/04

CPC分类号： H04B10/64 ,  G01J3/10 ,  G01J3/433 ,  G01J9/0246 ,  G01J9/04 ,  G01J2003/423 ,  H04B10/504 ,  H04B10/505 ,  H04B10/524

摘要： A method for optical and electrical signal processing of a multi-heterodyne signal generated by a multi-mode semi-conductor laser, for a system comprising two laser sources and an sample interaction unit. At least the beam of one of the laser passes through said sample interaction unit before being combined on a detector. The first laser is tuned (40=>42) by an amount keeping the tuning result within the available detector bandwidth (55). Then the second laser is roughly tuned by the same amount as the tuning of the first laser to bring back the signal to the vicinity (48) of the original place in the RF-domain and within the bandwidth (55) of the detector. The tuning steps are repeated with different value of mode spacing for reconstructing the sample spectrum and provide a high resolution image of the dip (41) absorption line (40).

摘要翻译： 本发明涉及一种用于由多模的半导体激光器，其中该系统包括两个激光源和样品的相互作用单元产生的多外差信号的光学和电学信号处理的方法，worin至少之一的光束 激光器在检测器上被组合之前穿过所述交互单元。 两个激光器被调谐到重叠光谱，以产生在检测器（20）的带宽的外差信号。 然后，第一激光通过在保持量所述检测器的可用带宽（55）内的调谐结果调谐（40 => 42）。 然后第二激光器是通过相同量的粗略调谐的作为第一激光器的调谐带回信号以在RF域中的原位置附近（48）和所述检测器的带宽（55）内。 最后，重复调谐步骤许多与模间隔的不同值乘以用于重构样品光谱和提供浸渍（41）的吸收线（40）的高分辨率图像。

公开(公告)号：EP2351266B1

公开(公告)日：2017-01-25

申请号：EP08805068.7

申请日：2008-10-06

申请人： Xieon Networks S.à r.l.

发明人： GOTTWALD, Erich

IPC分类号： H04B10/25 ,  H04B10/61 ,  H04B10/64 ,  H04B10/60 ,  H04B10/43 ,  H04B10/40

CPC分类号： H04B10/60 ,  H04B10/40 ,  H04B10/43 ,  H04B10/64

公开(公告)号：EP3021543A1

公开(公告)日：2016-05-18

申请号：EP13890447.9

申请日：2013-07-31

申请人： Huawei Technologies Co., Ltd.

发明人： YI, Xingwen ,  HONG, Cheng ,  QING, Huaping

IPC分类号： H04L27/26

CPC分类号： H04L27/2659 ,  H04B10/615 ,  H04B10/6164 ,  H04B10/64 ,  H04J14/0298 ,  H04L27/26 ,  H04L27/2657 ,  H04L27/2682 ,  H04L27/2697

摘要： A multi-waveband OFDM receiver and a frequency offset compensation method and system are disclosed. The method includes: performing single waveband frequency offset estimation on an optical comb line of each order; classifying the optical comb lines into a low mutation optical comb line and a high mutation optical comb line; performing joint frequency offset estimation on the low mutation optical comb line; and performing compensation for a frequency offset of a radio frequency drive signal by using an estimated joint frequency offset. The present invention improves accuracy and reliability of the frequency offset estimation of the radio frequency drive signal, so that the degree of the compensation for the frequency offset of the radio frequency drive signal is more comprehensive and accurate.

公开(公告)号：EP2273699A1

公开(公告)日：2011-01-12

申请号：EP09305621.6

申请日：2009-06-30

申请人： Alcatel Lucent

发明人： Veith, Gustav ,  Templ, Wolfgang

IPC分类号： H04B10/142 ,  H04B10/26 ,  H04B10/12

CPC分类号： H04B10/2587 ,  H04B10/2503 ,  H04B10/25758 ,  H04B10/40 ,  H04B10/64

摘要： The invention concerns a method for bidirectional transmission of signals between a first device (CORAS1) and a further device (TER3) via an intermediate device (CORAS2), wherein an optical downlink data signal is transmitted on an optical downlink carrier frequency from the first device (CORAS1) to said intermediate device (CORAS2), the optical downlink data signal is converted to an electrical downlink data signal in said intermediate device (CORAS2), the electrical downlink data signal is transmitted from said intermediate device (CORAS2) to the further device (TER3) via a wireless connection, an uplink data signal is transmitted from the further device (TER3) to said intermediate device (CORAS2) via a wireless connection, the electrical uplink data signal is modulated on an optical uplink carrier frequency in said intermediate device (CORAS2) resulting in an optical uplink data signal, which is transmitted from said intermediate device (CORAS2) to the first device (CORAS1), and a transceiver therefor.

摘要翻译： 本发明涉及一种用于第一设备（CORAS1），并在中间设备光学下行链路数据信号的（CORAS2）worin通过另一设备（TER3）之间的信号的双向传输是到光下行链路载频的反式mitted从所述第一设备 （CORAS1）向所述中间设备（CORAS2），光学下行数据信号以在所述中间设备（CORAS2）电下行链路数据信号转换为，所述电下行链路数据信号是从所述中间设备（CORAS2）反式mitted到另一装置 （TER3）通过无线连接到上行数据信号是从另一装置（TER3）向所述中间设备（CORAS2）反式mitted经由无线连接，所述电上行链路数据信号在所述中间设备上调制的光学上行链路载波频率 （CORAS2）导致在光学上行链路数据信号，所有这些是从所述中间装置（CORAS2）反式mitted到第一装置（CORAS1）中，在 为此ransceiver。

公开(公告)号：EP2260593A1

公开(公告)日：2010-12-15

申请号：EP09712363.2

申请日：2009-02-20

申请人： Ofidium Pty Ltd

发明人： SCHMIDT, Brendon James ,  LOWERY, Arthur James ,  ARMSTRONG, Jean

IPC分类号： H04B10/148

CPC分类号： H04B10/64 ,  H04B10/61 ,  H04B10/614 ,  H04B10/6151

摘要： An apparatus and method are provided for receiving an optical signal having an optical carrier component and at least one information-bearing optical sideband. In general, an optical filter arrangement (110) is used to separate the optical carrier component from the information-bearing optical sideband. First and second optical splitters (126, 128) divide the optical power in the optical carrier and the optical sideband, respectively, into corresponding sub-components. The sub-components of the optical carrier have substantially orthogonal polarisation states, which is an optional characteristic of the sideband sub-components. First and second optical coupling devices (142, 144) respectively each combine one of the optical carrier sub-components with a corresponding one of the optical sideband sub-components. Optical detectors (158, 160) detect the outputs of the combiners (142, 144). The arrangement is able to achieve a number of the benefits of coherent optical heterodyne receivers, particularly when used in combination with advanced coding and modulation methods, while avoiding the need, and associated complexity, of providing an optical oscillator at the receiver.