公开(公告)号：US09871615B2

公开(公告)日：2018-01-16

申请号：US15278790

申请日：2016-09-28

Applicant: Xieon Networks S.à.r.l.

Inventor： Alessandro Bianciotto ,  Bernhard Spinnler ,  Antonio Napoli ,  Christina Hebebrand

IPC: H04B10/00 ,  H04B10/06 ,  H04J14/06 ,  H04B10/61 ,  H04L7/033 ,  H04L7/00

CPC classification number: H04J14/06 ,  H04B10/614 ,  H04B10/6161 ,  H04B10/6165 ,  H04L7/0029 ,  H04L7/0075 ,  H04L7/0079 ,  H04L7/0331

Abstract: Component signal values are derived from component signals and fed to at least one fixed equalizer which generates equalizer output signals. The signals are fed to phase error detectors generating phase error signals. The phase error signals are combined with further phase error signals derived by further error detectors receiving signal values from further equalizers and/or the component signal values directly from sample units.

公开(公告)号：US11296796B2

公开(公告)日：2022-04-05

申请号：US16286147

申请日：2019-02-26

Applicant: Xieon Networks S.à.r.l.

Inventor： Alessandro Bianciotto ,  Stefano Calabró ,  Maxim Kuschnerov ,  Mahdi Mezghanni ,  Antonio Napoli ,  Bernhard Spinnler

IPC: H04B10/588 ,  H04B10/50 ,  H04B10/079 ,  H04B10/61 ,  G02F1/225 ,  G02F1/21

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.

公开(公告)号：US10263708B2

公开(公告)日：2019-04-16

申请号：US15119072

申请日：2015-03-12

Applicant: Xieon Networks S.à.r.l.

Inventor： Alessandro Bianciotto ,  Stefano Calabro ,  Maxim Kuschnerov ,  Mahdi Mezghanni ,  Antonio Napoli ,  Bernhard Spinnler

IPC: H04B10/588 ,  G02F1/225 ,  H04B10/61 ,  H04B10/079 ,  H04B10/50 ,  G02F1/21

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.