公开(公告)号：US20170264368A1

公开(公告)日：2017-09-14

申请号：US15453102

申请日：2017-03-08

Applicant: ADVA Optical Networking SE

Inventor： Michael Eiselt ,  Annika Dochhan

IPC: H04B10/516 ,  H04B10/69

CPC classification number: H04B10/516 ,  H04B10/2507 ,  H04B10/5165 ,  H04B10/69 ,  H04B10/697

Abstract: A method for creating an optical transmit signal includes creating an electrical discrete multi-tone signal according to digital input data carrying the information to be transmitted, the discrete multi-tone signal having a plurality of electrical partial signals, each electrical partial signal defining a sub-channel. Each electrical partial signal includes a sub-carrier at a predetermined sub-carrier frequency which is modulated according to a dedicated modulation scheme, so that a dedicated portion of the digital input data is included in each sub-channel. The method includes creating an optical signal by using the electrical discrete multi-tone signal as modulating signal for amplitude-modulating the intensity of an optical carrier signal. The method further includes bandpass-filtering the optical signal in order to create an optical single sideband or vestigial sideband transmit signal. An optical transmitter device for creating such an optical transmit signal and to an optical transmitter and receiver device includes a respective optical transmitter device.

公开(公告)号：US09473246B2

公开(公告)日：2016-10-18

申请号：US14704046

申请日：2015-05-05

Applicant: ADVA Optical Networking SE

Inventor： Klaus Grobe ,  Michael Eiselt

IPC: H04B10/50 ,  H04B10/572 ,  H04J14/02 ,  H04B17/11

CPC classification number: H04B10/506 ,  H04B10/572 ,  H04B17/11 ,  H04J14/02

Abstract: A method for tuning a tunable optical transmitter to a target wavelength includes applying at least one tuning signal to the tunable optical transmitter to control the tunable optical transmitter to create an optical calibration signal according to nominal tuning information for the tunable optical transmitter. The optical calibration signal has a wavelength lying within a secure wavelength range, and the nominal tuning information is based on a nominal wavelength dependency for the tunable optical transmitter. The method also includes measuring a deviation between an actual wavelength dependency of the tunable optical transmitter and the nominal wavelength dependency, and determining calibration information based on that deviation. The calibration information is applied to determine a corrected nominal wavelength dependency from which target tuning information is determined. The tunable optical transmitter is controlled to create an optical channel signal according to the target tuning information.

Abstract translation: 用于将可调光发射机调谐到目标波长的方法包括将至少一个调谐信号施加到可调谐光发射机，以根据可调谐光发射机的标称调谐信息来控制可调光发射机产生光学校准信号。 光学校准信号具有位于安全波长范围内的波长，标称调谐信息基于可调光发射机的标称波长依赖性。 该方法还包括测量可调光发射机的实际波长依赖性与标称波长依赖性之间的偏差，以及基于该偏差来确定校准信息。 应用校准信息来确定确定目标调谐信息的校正的标称波长依赖性。 根据目标调谐信息，控制可调光发射机产生光通道信号。

公开(公告)号：US20150063823A1

公开(公告)日：2015-03-05

申请号：US14468132

申请日：2014-08-25

Applicant: ADVA Optical Networking SE

Inventor： Michael Eiselt

IPC: H04L27/06 ,  H04L27/04 ,  H04B10/60 ,  H04B10/54

CPC classification number: H04L27/06 ,  H04B10/07953 ,  H04B10/5055 ,  H04B10/5167 ,  H04B10/541 ,  H04B10/60 ,  H04L27/04

Abstract: The invention relates to a method for transmitting a binary digital transmit signal over an optical transmission link. The method includes the steps of creating a differential optical duobinary signal (SdODB(t)), supplying the differential optical duobinary signal SdODB(t)) to a first end of the optical transmission link, transmitting the differential optical duobinary signal SdODB(t)) to a second end of the optical transmission link, and receiving the differential optical duobinary signal SdODB(t)) as receive signal (SRX(t)) at the second end of the optical transmission link by detecting the optical power of the differential optical duobinary signal SdODB(t)) and creating a binary digital receive signal (SbRX(t)) corresponding to the binary digital transmit signal (SbTX(t)) by decoding the receive signal (SRX(t)). The differential optical duobinary signal SdODB(t)) may be created by pre-coding the binary digital transmit signal (SbTX(t)) having a given bit interval (T) into an intermediate pre-coded digital signal (Spi(t)), the pre-coding operation being identical with or equivalent to applying a non-XOR operation to the binary digital transmit signal (SbTX(t)) and the intermediate pre-coded digital signal delayed by a single bit interval (Spi(t−T)), again pre-coding the intermediate pre-coded digital signal (Spi(t)) into a pre-coded digital signal (Sp(t)), this second pre-coding operation being identical with or equivalent to applying a non-XOR operation to the intermediate pre-coded digital signal (Spi(t)) and the pre-coded digital signal delayed by a single bit interval (Sp(t−T)), duobinary encoding the pre-coded signal (Sp(t)) into a differential duobinary signal (SdDB(t)), and modulating an optical light source of an optical modulator device (15) having the predetermined optical wavelength using the differential duobinary signal (SdDB(t)) as modulate signal. Alternatively, the differential optical duobinary signal SdODB(t)) may be created by directly pre-coding the binary digital transmit signal (SbTX(t)) into the pre-coded digital signal (Sp,alt(t)), the pre-coding operation being identical with or equivalent to applying a non-XOR operation to the binary digital transmit signal (SbTX(t)) and the pre-coded digital signal delayed by twice the bit interval (Sp,alt(t−2T)), duobinary encoding the pre-coded signal (Sp,alt(t)) into the differential duobinary signal (SdDB(t)), and modulating the optical light source of the optical modulator device (15) using the differential duobinary signal (SdDB(t)) as modulate signal. Further, the invention relates to a transmitter device (1) and a receiver device (17, 17′) for realizing the transmission method according to the invention.

公开(公告)号：US20140140699A1

公开(公告)日：2014-05-22

申请号：US14081756

申请日：2013-11-15

Applicant: ADVA Optical Networking SE

Inventor： Michael Eiselt ,  Stephan Pachnicke

IPC: H04B3/32 ,  H04J14/02

CPC classification number: H04B3/32 ,  H04J14/02 ,  H04J14/0208 ,  H04J14/06

Abstract: Arrangement for transmitting an optical digital WDM signal over an optical transmission link or a passive optical network, the signal (SWDM) including N optical channels matching a given optical frequency grid. The scheme includes supplying the WDM signal (SWDM) to a near end of the optical transmission link or a near end of the passive optical network; receiving the WDM signal (SWDM) at a far end of the optical transmission link or at one or more far ends of the passive optical network; separating the optical channel signals (si(t)) by splitting and bandpass filtering the WDM signal (SWDM) received; and converting the optical channel signals (si(t)) into electrical channel signals using direct optical detection. The signal (SWDM) is created such that neighboring channel signals (si(t)) are orthogonally polarized and are conditioned with specific pre-distortion.

Abstract translation: 用于通过光传输链路或无源光网络发送光数字WDM信号的装置，所述信号（SWDM）包括与给定光频网格匹配的N个光信道。 该方案包括将WDM信号（SWDM）提供给光传输链路的近端或无源光网络的近端; 在所述光传输链路的远端处或在所述无源光网络的一个或多个远端处接收所述WDM信号（SWDM）; 通过对所接收的WDM信号（SWDM）进行分频和带通滤波来分离光信道信号（si（t））; 以及使用直接光学检测将光信道信号（si（t））转换成电信道信号。 创建信号（SWDM），使得相邻信道信号（si（t））被正交极化并且用特定的预失真来调节。

公开(公告)号：US20230221190A1

公开(公告)日：2023-07-13

申请号：US18096290

申请日：2023-01-12

Applicant: ADVA Optical Networking SE

Inventor： Michael Eiselt ,  Florian Azendorf ,  Sander Jansen

IPC: G01K11/32 ,  G01D5/26

CPC classification number: G01K11/32 ,  G01D5/268 ,  G01N21/45

Abstract: Provided is an apparatus for determining the temperature of at least one fluid. The apparatus includes an optical fiber. A first end of the optical fiber is connected to at least one fiber tip, and a first additional reflector is introduced into the at least one fiber tip at a first predetermined distance from an outer end of the at least one fiber tip. A second end of the optical fiber is connected to a processing apparatus. The processing apparatus includes an optical source. The optical source is configured to launch an optical signal into the optical fiber, and a coherent detector. The coherent detector is configured to determine the temperature of at least one fluid by receiving a first light signal that corresponds to parts of the optical signal that are reflected at the outer end of the at least one fiber tip when the at least one fiber tip is inserted into the at least one fluid and a second light signal that corresponds to parts of the optical signal that are reflected at the first additional reflector when the at least one fiber tip is inserted into the at least one fluid, determining a difference of the optical phases of the first light signal and the second light signal, and determining the temperature of the at least one fluid based on the difference of the optical phases of the first light signal and the second light signal.

公开(公告)号：US20210067252A1

公开(公告)日：2021-03-04

申请号：US17005393

申请日：2020-08-28

Applicant: ADVA Optical Networking SE

Inventor： Michael Eiselt

IPC: H04B10/61 ,  G02B6/293

Abstract: An optical endless phase shifting device includes a Mach-Zehnder structure operated in push-pull configuration and that creates a differential phase shift. The first stage outputs combined signals which are phase shifted by a phase shift of zero or π in the second stage by phase shifters provided in both arms of the second stage or in a first arm only. These additionally phase-shifted signals are combined to at least one output signal. A control device controls the phase shifters such that endless shifting capability is provided by switching one of the phase shifters or the single phase shifter of the second stage to the respective other value when the differential phase shift reaches a given range of the differential phase shift of [0;π/2] in the configuration with two phase shifters in the second stage or [0;π/2] in the configuration with only one phase shifters in the second stage.

公开(公告)号：US20200309621A1

公开(公告)日：2020-10-01

申请号：US16832915

申请日：2020-03-27

Applicant: ADVA Optical Networking SE

Inventor： Michael Eiselt ,  Florian Azendorf

IPC: G01L1/24 ,  G01K11/32 ,  G01D21/02

Abstract: The invention relates to a method for optically sensing a parameter of the group of temperature, humidity or mechanical stress using at least one optical sensor which includes a chirped Bragg grating and an optical reference reflector. The method includes the steps of; creating at least one optical probing signal having a predetermined center wavelength and a bandwidth that lies, for the whole range of the parameter to be sensed, within the reflection bandwidth of the chirped Bragg grating; feeding the at least one optical probing signal to the at least one optical sensor; receiving at least one optical reflection signal created by the at least one optical sensor, wherein the at least one optical reflection signal includes, for each of the at least one optical sensor, a first partial reflection signal created by the optical reference reflector and a second partial reflection signal created by the chirped Brag grating of the respective at least one optical sensor; measuring the group delay between the first and second partial reflection signal created by each of the at least one optical sensor; and determining, for each of the at least one optical sensors, an absolute or relative value of the at least one parameter using the group delay measured and a reference information. The invention further relates to a sensor arrangement for implementing the method as well as to an optical sensor that is suitable for being used in such a sensor arrangement.

公开(公告)号：US10735099B2

公开(公告)日：2020-08-04

申请号：US16267011

申请日：2019-02-04

Applicant: ADVA Optical Networking SE

Inventor： Danish Rafique ,  Michael Eiselt

IPC: H04B10/07 ,  H04B10/27 ,  G06N20/00

Abstract: A method and apparatus for performing event-driven diagnostics and/or prognostics of a network behaviour of a hierarchical optical network comprising the steps of recording at least one set of historical multi-level events representing different hierarchy levels of said optical network; mining of machine learned event patterns within the recorded multi-level events; mapping the determined mined event patterns to a multi-level network topology of said optical network and/or to a channel connectivity of channels through said optical network; and matching observed real-time multi-level target events of said optical network with at least one of the previously determined mined event patterns and performing a unified cause and effect analysis of network states and/or network components of said optical network for a recognized matching event pattern using the network topology and/or channel connectivity associated with the matching event pattern.

公开(公告)号：US10270534B2

公开(公告)日：2019-04-23

申请号：US15453102

申请日：2017-03-08

Applicant: ADVA Optical Networking SE

Inventor： Michael Eiselt ,  Annika Dochhan

IPC: H04B10/00 ,  H04B10/516 ,  H04B10/69 ,  H04B10/2507

Abstract: A method for creating an optical transmit signal includes creating an electrical discrete multi-tone signal according to digital input data carrying the information to be transmitted, the discrete multi-tone signal having a plurality of electrical partial signals, each electrical partial signal defining a sub-channel. Each electrical partial signal includes a sub-carrier at a predetermined sub-carrier frequency which is modulated according to a dedicated modulation scheme, so that a dedicated portion of the digital input data is included in each sub-channel. The method includes creating an optical signal by using the electrical discrete multi-tone signal as modulating signal for amplitude-modulating the intensity of an optical carrier signal. The method further includes bandpass-filtering the optical signal in order to create an optical single sideband or vestigial sideband transmit signal. An optical transmitter device for creating such an optical transmit signal and to an optical transmitter and receiver device includes a respective optical transmitter device.

公开(公告)号：US10256959B2

公开(公告)日：2019-04-09

申请号：US15851463

申请日：2017-12-21

Applicant: ADVA Optical Networking SE

Inventor： Michael Eiselt

IPC: H04B10/50 ,  H04B1/16 ,  H04L5/00 ,  H04J14/02 ,  H04B17/24 ,  H04B1/715 ,  H04L25/02 ,  H04L27/26

Abstract: A method for generating a tone signal (TS) having a tone frequency, f, wherein the method comprises the following steps: supplying (S1) a binary bit stream (BBS) having a mark pattern with a supply bit rate, BR, to a signal filter unit; and filtering (S2) the supplied binary bit stream (BBS) by said signal filter unit to generate the tone signal (TS), wherein the mark pattern of the binary bit stream (BBS) supplied to said signal filter unit is adapted to minimize a ratio of the supply bit rate, BR, to the tone frequency, f, of the generated tone signal (TS).