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.