公开(公告)号：US11489597B2

公开(公告)日：2022-11-01

申请号：US17063224

申请日：2020-10-05

Applicant: ADVA Optical Networking SE

Inventor： Sorin Tibuleac ,  Steven Searcy ,  Sergey Burtsev

IPC: H04B10/00 ,  H04B10/69 ,  H04B17/336 ,  H04B10/077 ,  H04B10/293 ,  H04B10/297 ,  H04B10/291

Abstract: The present invention relates to a method for optimizing performance of a multi-span optical fiber network. Each span has an associated optical transmission fiber connected to an associated optical amplifier. Gain and output power of the associated optical amplifier are respectively controlled independently. An amplifier noise figure respectively depends on the gain of the associated optical amplifier, with each associated optical amplifier further connected to launch optical signals into a remainder of a corresponding optical transmission line. The method includes the steps of for each span, computing the amplifier noise figure and a non-linear noise generated in the span based on information about the span and using the computed amplifier noise figure and the computed non-linear noise to compute an optimum launch power, and optimizing performance of the multi-span optical fiber network based on the computed optimum launch powers of all spans.

公开(公告)号：US10313048B1

公开(公告)日：2019-06-04

申请号：US15816494

申请日：2017-11-17

Applicant: ADVA Optical Networking SE

Inventor： Cornelius Fürst ,  Thomas Richter ,  Sorin Tibuleac

IPC: H04J14/02 ,  H04B10/40 ,  H04Q11/00 ,  H04L12/707 ,  H04B10/61

Abstract: A method for establishing bidirectional communication links includes: supplying, to at least two optical transceiver modules at each side of at least two optical paths, a multiplexed optical CW signal comprising at least two optical CW signals having the same differing wavelengths, and modulating the multiplexed optical CW signal according to modulation signals; creating, at each side of the optical paths, at least two first and second optical transmit signals by optically filtering the modulated optical signals so that only a single wavelength remains, and routing pairs of a first and second optical transmit signal to the optical paths, wherein the optical transmit signals of each pair have differing wavelengths and wherein the optical transmit signals transmitted in the same direction over the same optical paths have differing wavelengths; receiving each optical transmit signals at a dedicated optical transceiver module by mixing it with the multiplexed optical CW signal.

公开(公告)号：US20190158211A1

公开(公告)日：2019-05-23

申请号：US15816494

申请日：2017-11-17

Applicant: ADVA Optical Networking SE

Inventor： Cornelius Fürst ,  Thomas Richter ,  Sorin Tibuleac

IPC: H04J14/02 ,  H04B10/40 ,  H04Q11/00 ,  H04L12/707 ,  H04B10/61

Abstract: A method for establishing bidirectional communication links includes: supplying, to at least two optical transceiver modules at each side of at least two optical paths, a multiplexed optical CW signal comprising at least two optical CW signals having the same differing wavelengths, and modulating the multiplexed optical CW signal according to modulation signals; creating, at each side of the optical paths, at least two first and second optical transmit signals by optically filtering the modulated optical signals so that only a single wavelength remains, and routing pairs of a first and second optical transmit signal to the optical paths, wherein the optical transmit signals of each pair have differing wavelengths and wherein the optical transmit signals transmitted in the same direction over the same optical paths have differing wavelengths; receiving each optical transmit signals at a dedicated optical transceiver module by mixing it with the multiplexed optical CW signal.

公开(公告)号：US10090917B2

公开(公告)日：2018-10-02

申请号：US15203078

申请日：2016-07-06

Applicant: ADVA Optical Networking SE

Inventor： Steven Searcy ,  Sorin Tibuleac

IPC: G01N21/00 ,  H04B10/079 ,  G02B6/42 ,  G01M11/08 ,  G01M11/00

Abstract: A method and apparatus for automatic determination of a fiber type of at least one optical fiber span used in a link of an optical network, the method comprising the steps of measuring a length of said optical fiber span; measuring a chromatic dispersion of said optical fiber span; determining a fiber dispersion profile of said optical fiber span on the basis of the measured length and the measured fiber chromatic dispersion; and determining a fiber category and/or a specific fiber type of said optical fiber span depending on the determined fiber dispersion profile.

公开(公告)号：US20180013490A1

公开(公告)日：2018-01-11

申请号：US15203078

申请日：2016-07-06

Applicant: ADVA Optical Networking SE

Inventor： Steven Searcy ,  Sorin Tibuleac

IPC: H04B10/079 ,  G01M11/08 ,  G01M11/00 ,  G02B6/42

CPC classification number: H04B10/079 ,  G01M11/088 ,  G01M11/30 ,  G02B6/422 ,  H04B10/07 ,  H04B10/0795 ,  H04J14/02

Abstract: A method and apparatus for automatic determination of a fiber type of at least one optical fiber span used in a link of an optical network, the method comprising the steps of measuring a length of said optical fiber span; measuring a chromatic dispersion of said optical fiber span; determining a fiber dispersion profile of said optical fiber span on the basis of the measured length and the measured fiber chromatic dispersion; and determining a fiber category and/or a specific fiber type of said optical fiber span depending on the determined fiber dispersion profile.

公开(公告)号：US09397749B2

公开(公告)日：2016-07-19

申请号：US14014316

申请日：2013-08-29

Applicant: ADVA Optical Networking SE

Inventor： J. David Portier ,  Sorin Tibuleac

IPC: H04B10/035 ,  H04B10/077 ,  H04B10/079 ,  H04B10/294 ,  H04J14/02

CPC classification number: H04B10/07955 ,  H04B10/035 ,  H04B10/0775 ,  H04B10/2942 ,  H04J14/0201 ,  H04J14/0206 ,  H04J14/0221 ,  H04J14/0276 ,  H04J14/0283

Abstract: A method and apparatus for performing an automatic power adjustment wherein a signal power level of an optical signal transmitted by an optical transceiver via an optical span to a far-end device is adjusted automatically in response to a determined span loss of the optical span to achieve a predetermined desired receive signal power level of the optical signal at the far-end device.

公开(公告)号：US20150131988A1

公开(公告)日：2015-05-14

申请号：US14079887

申请日：2013-11-14

Applicant: ADVA Optical Networking SE

Inventor： Mohammad Alfiad ,  Mark Filer ,  Ted Rabenko ,  Sorin Tibuleac

IPC: H04B10/077 ,  H04B10/25 ,  H04J14/02 ,  H04B10/27

CPC classification number: H04B10/0775 ,  G01M11/088 ,  H04B10/073 ,  H04B10/077 ,  H04B10/0771 ,  H04B10/25 ,  H04B10/27 ,  H04J14/02

Abstract: The length of the optical fiber section under tension expands by a certain amount that is proportional to the level of tension applied to it. Monitoring the variations in the phase of the arriving signal allows to discover a fiber that is subject to a certain level of mechanical tension. With the method and apparatus according to the present invention it is possible to protect optical communication channels against failures in an optical transmission fiber that are caused by any kind of mechanical disturbances.

Abstract translation: 张力下的光纤部分的长度膨胀一定量，与施加到其上的张力水平成正比。 监测到达信号的相位变化允许发现受到一定程度的机械张力的光纤。 利用根据本发明的方法和装置，可以保护光通信信道免受由任何种类的机械干扰引起的光传输光纤中的故障。

公开(公告)号：US20140161458A1

公开(公告)日：2014-06-12

申请号：US13712765

申请日：2012-12-12

Applicant: ADVA Optical Networking SE

Inventor： Steven Searcy ,  Sorin Tibuleac

IPC: H04J14/02 ,  H04B10/2507

CPC classification number: H04J14/02 ,  H04B10/0779 ,  H04B10/0799 ,  H04B10/2557 ,  H04B10/5161 ,  H04J14/0275

Abstract: A hybrid wavelength division multiplexing system wherein one or more intensity modulated signals generated by optical amplitude modulators are co-propagated with one or more phase modulated signals generated by optical phase modulators, wherein a drive voltage of said optical amplitude modulator is adapted to reduce an extinction ratio of the intensity modulated signal to minimize a cross-phase modulation impact on the co-propagating phase modulated signals.

Abstract translation: 一种混合波分复用系统，其中由光振幅调制器产生的一个或多个强度调制信号与由光相位调制器产生的一个或多个相位调制信号共同传播，其中所述光幅度调制器的驱动电压适于减少消光 强度调制信号的比率以最小化对共同相位调制信号的交叉相位调制影响。