公开(公告)号：US20140294387A1

公开(公告)日：2014-10-02

申请号：US14228985

申请日：2014-03-28

Applicant: Xieon Networks S.a.r.l.

Inventor： Fabian HAUSKE ,  Maxim KUSCHNEROV ,  Berthold LANKL ,  Bernhard SPINNLER

IPC: H04B10/61 ,  H04J14/06

CPC classification number: H04B10/6166 ,  H04B10/2513 ,  H04B10/6971 ,  H04J14/06

Abstract: A received optical signal is coherently demodulated and converted into electrical complex samples (p(n); (px(n), py(n)), which are dispersion compensated in a compensation filter (11). A control circuit (12, 13, 14, 15) calculates comparison values (R1, R2) from corrected samples q(n) and an estimated error value (εMIN).A plurality of compensation function (T(M)) is applied according to a predetermined dispersion (CD) range and after a second iteration is the compensation filter (11) set to an optimum compensation function (T(M)).

Abstract translation: 接收的光信号被相干解调并转换成在补偿滤波器（11）中进行色散补偿的电复杂样本（p（n）;（px（n），py（n）），控制电路 ，14,15）根据校正样本q（n）和估计误差值（＆egr MIN）计算比较值（R1，R2），根据预定色散（T（M））应用多个补偿函数 CD）范围，并且在第二次迭代之后，将补偿滤波器（11）设置为最佳补偿函数（T（M））。

公开(公告)号：US20170054511A1

公开(公告)日：2017-02-23

申请号：US15119072

申请日：2015-03-12

Applicant: XIEON NETWORKS S.a.r.L.

Inventor： Alessandro BIANCIOTTO ,  Stefano CALABRO ,  Maxim KUSCHNEROV ,  Mahdi MEZGHANNI ,  Antonio NAPOLI ,  Bernhard SPINNLER

IPC: H04B10/588 ,  G02F1/225 ,  H04B10/61 ,  H04B10/50 ,  H04B10/079

CPC classification number: H04B10/588 ,  G02F1/2255 ,  G02F2001/212 ,  H04B10/0795 ,  H04B10/5053 ,  H04B10/5055 ,  H04B10/61

Abstract: Disclosed herein is a dual parallel Mach-Zehnder-modulator (DPMZM) device comprising a DPMZM 10 having first and second inner MZMs arranged parallel to each other. The first inner MZM generates an in-phase component EI of an optical signal in response to a first driving voltage VI, and the second inner MZM generates a quadrature component EQ of said optical signal in response to a second driving voltage VQ. Further disclosed is a calculation unit 52 configured for receiving an in-phase component yI and a quadrature component yQ_ of a desired base-band signal, and for calculating pre-distorted first and second driving voltages VI, VQ. The calculation of the pre-distorted first and second driving voltages VI, VQ is based on a model of said DPMZM 10 accounting for I-Q cross-talk, and using an algorithm that determines said first and second driving voltages VI, VQ each as a function of both of said in-phase and quadrature components yI, yQ of said base-band signal.

Abstract translation: 本文公开了一种双并联马赫 - 曾德尔调制器（DPMZM）装置，其包括具有彼此平行布置的第一和第二内部MZM的DPMZM 10。 第一内部MZM响应于第一驱动电压VI产生光学信号的同相分量EI，并且第二内部MZM响应于第二驱动电压VQ产生所述光学信号的正交分量EQ。 还公开了一种计算单元52，被配置为接收期望的基带信号的同相分量yI和正交分量yQ_，并且用于计算预失真的第一和第二驱动电压VI，VQ。 预失真的第一和第二驱动电压VI，VQ的计算基于所述DPMZM 10的IQ串扰模型，并且使用将所述第一和第二驱动电压VI，VQ分别确定为功能的算法 所述基带信号的所述同相和正交分量yI，yQ。