DETERMINATION OF AN OPTICAL SIGNAL TO NOISE RATIO OF A DUAL-POLARIZATION OPTICAL SIGNAL
    3.
    发明申请
    DETERMINATION OF AN OPTICAL SIGNAL TO NOISE RATIO OF A DUAL-POLARIZATION OPTICAL SIGNAL 有权
    光学信号对双极化光信号噪声比的测定

    公开(公告)号:US20160142134A1

    公开(公告)日:2016-05-19

    申请号:US14904354

    申请日:2014-07-09

    Applicant: ORANGE

    CPC classification number: H04B10/07953 H04B10/0775 H04B2210/074

    Abstract: A method is provided for determining an optical signal to noise ratio of a dual polarization optical signal. The method includes: detecting, in the dual polarization optical signal, a modulation signal which modulates, at at least one low amplitude level that is approximately zero and at a high amplitude level, the dual polarization optical signal, and determining the optical signal to noise ratio from a measurement of the power of the modulation signal.

    Abstract translation: 提供了一种用于确定双偏振光信号的光信噪比的方法。 该方法包括:在双偏振光学信号中,检测调制信号,该调制信号在至少一个低幅度电平处调制双偏振光信号,并且将该光信号与噪声 从调制信号的功率的测量的比率。

    Optical signal comprising a succession of multi-band bursts of multi-carrier data signals, system and method of emission of such a signal, and corresponding optical transport network

    公开(公告)号:US10541775B2

    公开(公告)日:2020-01-21

    申请号:US15500899

    申请日:2015-07-25

    Applicant: ORANGE

    Abstract: The invention relates to a system for sending data in an optical network comprising source nodes (1-1, 1-2, 1-3, 1-4, 1-5), each capable of generating, in a spectral band that is associated with it, a multi-carrier optical data signal obtained by modulation of a source signal at a source wavelength and of sending this signal in the form of single-band data bursts (11-13, 21-23, 31-33, 41-43, 51-53) that can be associated with distinct source wavelengths, and a combiner (1,2) for combining single-band data bursts, sent by the source nodes in the spectral bands that are associated with them, into multi-band data bursts (61-63, 71-73) occupying a spectral band corresponding to a juxtaposition of the spectral bands associated with the source nodes. In this system, a unit for controlling an instant of sending of said single-band data bursts by the source nodes, implements a control plane taking account of a path time of the single-band data bursts sent by the source nodes to the combiner.

    Reception of multiple-wavelength optical signals consisting of single-band optical bursts

    公开(公告)号:US10396901B2

    公开(公告)日:2019-08-27

    申请号:US15750136

    申请日:2016-08-01

    Applicant: Orange

    Abstract: A coherent optical receiver capable of receiving a multiple-wavelength optical signal comprising a series of single-band optical bursts is described. Each single-band optical burst is carried by one wavelength from among a plurality of wavelengths on a predetermined spectral band. The optical receiver can include optical generation means arranged to generate a local multiple-wavelength optical oscillator consisting of a plurality of optical lines at wavelengths corresponding to the wavelengths of the optical bursts, optical mixing means arranged to mix the optical oscillator and the optical signal in order to generate at least one mixed optical signal comprising a plurality of beats between at least one of the single-band optical bursts and the optical lines of the local multiple-wavelength optical oscillator, and a detection means to filter at least one beat between said single-band optical burst and one of the optical lines of the local multiple-wavelength optical oscillator.

    RECEPTION OF MULTIPLE-WAVELENGTH OPTICAL SIGNALS CONSISTING OF SINGLE-BAND OPTICAL BURSTS

    公开(公告)号:US20180227058A1

    公开(公告)日:2018-08-09

    申请号:US15750136

    申请日:2016-08-01

    Applicant: Orange

    CPC classification number: H04B10/615 H04B10/40 H04B10/63

    Abstract: A coherent optical receiver capable of receiving a multiple-wavelength optical signal comprising a series of single-band optical bursts is described. Each single-band optical burst is carried by one wavelength from among a plurality of wavelengths on a predetermined spectral band. The optical receiver can include optical generation means arranged to generate a local multiple-wavelength optical oscillator consisting of a plurality of optical lines at wavelengths corresponding to the wavelengths of the optical bursts, optical mixing means arranged to mix the optical oscillator and the optical signal in order to generate at least one mixed optical signal comprising a plurality of beats between at least one of the single-band optical bursts and the optical lines of the local multiple-wavelength optical oscillator, and a detection means to filter at least one beat between said single-band optical burst and one of the optical lines of the local multiple-wavelength optical oscillator.

    Frequency synchronization for an OFDM optical receiver
    7.
    发明授权
    Frequency synchronization for an OFDM optical receiver 有权
    OFDM光接收机的频率同步

    公开(公告)号:US09455862B2

    公开(公告)日:2016-09-27

    申请号:US14391969

    申请日:2013-03-27

    Applicant: Orange

    Abstract: A method is provided for receiving an optical signal including a step of coherently detecting the optical signal, outputting a multicarrier signal received, and a step of processing the received multicarrier signal, which includes a step of estimating a frequency offset affecting the received multicarrier signal relative to a corresponding multicarrier transmitter signal. The estimation step implements two sub-steps including: a sub-step of determining the entire portion of the frequency offset; and a sub-step of determining the fractional portion of the frequency offset. The sub-step of determining the entire portion implements a measurement, in the spectral range, of an offset between the position of at least one specific carrier of the multicarrier transmitter signal and the position of the corresponding specific carrier or carriers in the received multicarrier signal.

    Abstract translation: 提供了一种用于接收光信号的方法,该光信号包括相干检测光信号,输出接收的多载波信号和处理接收的多载波信号的步骤,该步骤包括估计影响所接收的多载波信号相对频率偏移的步骤 到相应的多载波发射机信号。 估计步骤实现两个子步骤,包括:确定频率偏移的整个部分的子步骤; 以及确定频率偏移的小数部分的子步骤。 确定整个部分的子步骤在光谱范围内实现多载波发射机信号的至少一个特定载波的位置与接收的多载波信号中对应的特定载波或载波的位置之间的偏移量的测量 。

    Pre-Distortion of an Optical Signal with Frequency Division Multiplexed Sub-Carriers
    8.
    发明申请
    Pre-Distortion of an Optical Signal with Frequency Division Multiplexed Sub-Carriers 有权
    具有频分复用子载波的光信号的预失真

    公开(公告)号:US20150318931A1

    公开(公告)日:2015-11-05

    申请号:US14591672

    申请日:2015-01-07

    Applicant: Orange

    Abstract: A method is provided for pre-distorting an optical signal, intended to be transmitted over an optical transmission line and including a plurality of frequency division multiplexed optical sub-carriers. The optical signal is obtained from an optical conversion of an electrical signal including a plurality of frequency division multiplexed sub-carriers. This method includes obtaining a plurality of corrective factors, corresponding to the electrical sub-carriers, as a function of a plurality of values, determined for the optical sub-carriers, of a first parameter dependent on the power of the sub-carriers, and application of the corrective factors to the amplitudes of the corresponding electrical sub-carriers, so as to equalize, at the output of the optical transmission line, the values of the first parameter for the sub-carriers of the optical signal.

    Abstract translation: 提供了一种用于对光信号进行预失真的方法,其旨在通过光传输线传输并包括多个频分复用的光子载波。 光信号是从包括多个频分复用子载波的电信号的光转换获得的。 该方法包括:取决于子载波的功率的第一参数,根据对于子载波确定的多个值,获得对应于电子载波的多个校正因子,以及 将校正因子应用于对应的电子载波的幅度,以便在光传输线的输出处均衡用于光信号的副载波的第一参数的值。

    Method and device for controlling the load of an optical transmission line with wavelength-division multiplexing

    公开(公告)号:US10797819B2

    公开(公告)日:2020-10-06

    申请号:US16333426

    申请日:2017-09-14

    Applicant: Orange

    Abstract: A load-controlling device controlling load on an optical transmission line, the input of which is coupled to an emitting device for modulating with data and multiplexing a plurality of useful wavelengths into a useful optical signal to be transmitted over the transmission line. The load-controlling device includes elements for generating a filler optical signal composed of at least one filler wavelength that is not modulated by data, to be injected into the optical transmission line. The generating elements generate a source optical signal composed of a plurality of wavelengths corresponding to the plurality of wavelengths of the useful optical signal and selects the wavelength of the filler optical signal among the wavelengths of the source optical signal. A control module controls selection of the wavelength of the filler optical signal depending on information indicative of non-turn-on of a wavelength among the plurality of wavelengths of the useful optical signal.

    Frequency Synchronization for an OFDM Optical Receiver
    10.
    发明申请
    Frequency Synchronization for an OFDM Optical Receiver 有权
    OFDM光接收机的频率同步

    公开(公告)号:US20150078764A1

    公开(公告)日:2015-03-19

    申请号:US14391969

    申请日:2013-03-27

    Applicant: Orange

    Abstract: A method is provided for receiving an optical signal including a step of coherently detecting the optical signal, outputting a multicarrier signal received, and a step of processing the received multicarrier signal, which includes a step of estimating a frequency offset affecting the received multicarrier signal relative to a corresponding multicarrier transmitter signal. The estimation step implements two sub-steps including: a sub-step of determining the entire portion of the frequency offset; and a sub-step of determining the fractional portion of the frequency offset. The sub-step of determining the entire portion implements a measurement, in the spectral range, of an offset between the position of at least one specific carrier of the multicarrier transmitter signal and the position of the corresponding specific carrier or carriers in the received multicarrier signal.

    Abstract translation: 提供了一种用于接收光信号的方法,该光信号包括相干检测光信号,输出接收的多载波信号和处理接收的多载波信号的步骤,该步骤包括估计影响所接收的多载波信号相对频率偏移的步骤 到相应的多载波发射机信号。 估计步骤实现两个子步骤,包括:确定频率偏移的整个部分的子步骤; 以及确定频率偏移的小数部分的子步骤。 确定整个部分的子步骤在光谱范围内实现多载波发射机信号的至少一个特定载波的位置与接收的多载波信号中对应的特定载波或载波的位置之间的偏移的测量 。

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