Patents Assigned to Xieon Networks S.à.r.l.
  • Patent number: 9048971
    Abstract: A first optical data signal is transmitted on a first data carrier from a first network element. First service information is transmitted from a first service by means of a first optical service signal on a first service carrier. A second optical data signal is transmitted on a second data carrier from a second network element, and second service information is transmitted by a second optical service signal on a second service carrier. An offset between a frequency of the first data carrier and a frequency of the first service carrier is substantially equal to an offset between a frequency of the second data carrier and a frequency of the second service carrier.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: June 2, 2015
    Assignee: Xieon Networks S.a.r.l.
    Inventors: Stefano Calabro, Thomas Michaelis
  • Patent number: 9014566
    Abstract: An optical component contains a tunable laser. The tunable laser provides an optical local oscillator signal, and the tunable laser is directly modulated to provide a modulated optical data signal. In this manner we have optimization of the channel wavelength and obtain an optimized electrical and optical bandwidth utilization. Furthermore, a method for data processing is suggested.
    Type: Grant
    Filed: October 6, 2008
    Date of Patent: April 21, 2015
    Assignee: Xieon Networks S.a.r.l.
    Inventor: Erich Gottwald
  • Patent number: 9014573
    Abstract: A method for processing data in an optical network element are provided, wherein the optical network element comprises a local oscillator operating at a first frequency; wherein an incoming data stream is received at a second frequency; wherein the incoming data steam is processed using the first frequency; wherein a first pattern is searched in the incoming data stream; wherein a second pattern is searched in the incoming data stream; and wherein the first pattern corresponds to the first frequency being in the spectrum on one side of the second frequency and the second pattern corresponds to the first frequency being in the spectrum on the other side of the second frequency. Also, a corresponding optical network element and a communication system comprising at least one such optical network element are suggested.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: April 21, 2015
    Assignee: Xieon Networks S.a.r.l.
    Inventors: Harald Rohde, Thomas Treyer
  • Patent number: 9002203
    Abstract: A method for data processing of an optical network element is provided, wherein a configuration information is received at the optical network element and a light signal is adjusted to a wavelength or wavelength range indicated by said configuration information; wherein an incoming optical signal is demodulated via the light signal and mixed as an electrical demodulated signal with a signal of an oscillator; wherein the signal of the oscillator is tuned to improve a reception of the incoming signal at the optical network element; and wherein the light signal is used for upstream modulation to provide a modulated optical upstream signal. Furthermore, an according device and a communication system are suggested including at least one such device.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: April 7, 2015
    Assignee: Xieon Networks S.a.r.l.
    Inventors: Thomas Treyer, Karl Kloppe, Harald Rohde
  • Patent number: 8989597
    Abstract: A collimator for a laser assembly includes a first electrostatically controllable liquid lense having a first optical axis and a second electrostatically controllable liquid lense having a second optical axis aligned with the first optical axis. A laser is provided and has such a collimator. Finally, a transmitter uses the laser for optical data transmission.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: March 24, 2015
    Assignee: Xieon Networks S.a.r.l.
    Inventors: Thomas Treyer, Sylvia Smolorz
  • Publication number: 20150059412
    Abstract: Method of ribbonizing a plurality of optical fibers (103) and ribbonizing apparatus for optical fibers, comprising a tablet (101) including fiber aligning means (104, 105) for aligning a plurality of optical fibers (103) in parallel, the ribbonizing apparatus being configured to be movably arranged in a splicing apparatus (102) when the plurality of optical fibers (103) is aligned in the tablet (101), and to be removed from the splicing apparatus (102) after a splicing process, so that the plurality of optical fibers (103) is not damaged due to mechanical stress.
    Type: Application
    Filed: April 5, 2013
    Publication date: March 5, 2015
    Applicant: Xieon Networks S.a.r.l.
    Inventor: Sugianto Wonoadi
  • Patent number: 8964924
    Abstract: A method and a device for processing a signal determine a timing phase over an observation interval of an input signal. A frequency estimation is determined based on the timing phase. A phase correction is determined for the observation interval based on the timing phase and the frequency offset. Then the phase correction is used to adjust the timing of the input signal. Also, a communication system with at least one such device is described.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: February 24, 2015
    Assignee: Xieon Networks S.a.r.l.
    Inventors: Stefano Calabro, Peter Kainzmaier, Bernhard Spinnler
  • Patent number: 8937761
    Abstract: A tilt correction pump laser is injected into an optical fiber in an opposite direction of the transmission direction of a wavelength multiplex signal and an optical isolator or filter is provided to block the tilt correction signal in order to restrict the effective fiber length for the tilt correction pump signal to enable a faster adjustment of the tilt.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: January 20, 2015
    Assignee: Xieon Networks S.a.r.l.
    Inventor: Erich Gottwald
  • Patent number: 8934771
    Abstract: An optical network has an optical line termination coupled to a backbone network, in particular to an optical long haul network and a local exchange coupled to an optical access network. The local exchange provides an optical connection between an optical network unit of a tree topology and the optical line termination, which is part of a ring topology. There is also described a method for processing data in such an optical network.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: January 13, 2015
    Assignee: Xieon Networks S.a.r.l.
    Inventor: Sylvia Smolorz
  • Patent number: 8934773
    Abstract: A method for data processing in an optical network includes providing several main wavelengths and processing a subcarrier modulation for the several main wavelengths. An optical network component and a communication system including such an optical network component are also provided.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: January 13, 2015
    Assignee: Xieon Networks S.a.r.l.
    Inventors: Erich Gottwald, Karl Kloppe, Harald Rohde
  • Patent number: 8908265
    Abstract: An optical amplifier with improved transient performance has two amplifier stages and a gain flattening filter-inserted between the amplifier stages. A control unit generates a pump control signal for a common pump source pumping both amplifier stages. The pump control signal has a feed-forward component and a feedback component. After a drop of channels the feed-forward control circuit is responsible for the transient performance and fast gain stabilization. The characteristic of the gain flattening filter is taken into account in calculating an optimum feed-forward control signal.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: December 9, 2014
    Assignee: Xieon Networks S.a.r.l.
    Inventor: Lutz Rapp
  • Patent number: 8868771
    Abstract: The invention relates to a method for transmitting data in a data network using virtual containers, which are combined to form a virtual concatenated group by means of the Link Capacity Adjustment Scheme, LCAS. The virtual concatenated group is sub-divided on the send side into a first virtual concatenated group and a second virtual concatenated group. Data of a first type is inserted on the send side into the first virtual concatenated group and data of the second type is inserted into the second virtual concatenated group. Said data is then transmitted via the data network.
    Type: Grant
    Filed: August 3, 2006
    Date of Patent: October 21, 2014
    Assignee: Xieon Networks S.a.r.l.
    Inventor: Christian Gierbauer
  • Publication number: 20140294387
    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 (?MIN). 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)).
    Type: Application
    Filed: March 28, 2014
    Publication date: October 2, 2014
    Applicant: Xieon Networks S.a.r.l.
    Inventors: Fabian HAUSKE, Maxim KUSCHNEROV, Berthold LANKL, Bernhard SPINNLER
  • Patent number: 8824034
    Abstract: A method and a device for operating a laser in an optical component are provided, wherein the laser is a local oscillator of the optical component; and wherein a linewidth of the laser is broadened. Furthermore, an optical communication system is suggested comprising said optical component.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: September 2, 2014
    Assignee: Xieon Networks S.a.r.l.
    Inventors: Harald Rohde, Thomas Treyer, Sylvia Smolorz, Erich Gottwald
  • Patent number: 8824891
    Abstract: A method removes signal interference in a passive optical network. The passive optical network includes an optical line terminal, a splitting unit coupled with the optical line terminal, an optical network unit coupled with the splitting unit, and an identification signal uniquely associated with the optical network unit. The method includes the steps of sending a first signal, detecting the first signal, comparing the detected first signal with an identification signal and decoupling the optical network unit from the splitting unit if the comparing step results in a mismatch.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: September 2, 2014
    Assignee: Xieon Networks S.a.r.l
    Inventors: Lutz Rapp, Dario Setti
  • Patent number: 8817366
    Abstract: An optical amplifier with improved transient performance has two amplifier stages and a dispersion compensating fiber inserted between the amplifier stages. A control unit generates a pump control signal for a common pump source pumping both amplifier stages via a power splitter. The pump control signal has a feedforward component with a delayed reaction. A feedforward delay time is adjusted to minimize gain variations resulting from input power drops. In a preferred embodiment, the splitting ratio of the power splitter is adjustable to achieve, for instance, either optimum steady-state performance or optimum transient performance.
    Type: Grant
    Filed: September 7, 2009
    Date of Patent: August 26, 2014
    Assignee: Xieon Networks S.a.r.l.
    Inventor: Lutz Rapp
  • Patent number: 8798471
    Abstract: A method for processing data in an optical network element. A multi-carrier signal is linear pre-coded and the linear pre-coded signal is modulated. A corresponding optical network element is also described.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: August 5, 2014
    Assignee: Xieon Networks S.a.r.l.
    Inventors: Oscar Gaete, Leonardo Coelho, Bernhard Spinnler, Norbert Hanik, Ernst-Dieter Schmidt
  • Patent number: 8781318
    Abstract: A method and an optical component for data processing in an optical network are provided, wherein two sets of wavelengths are allocated; wherein at least one set of wavelengths is monitored; and wherein a collision between the two sets of wavelengths is avoided or compensated by adjusting at least one laser of an optical component. Furthermore, an optical communication system is suggested including said optical component.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: July 15, 2014
    Assignee: Xieon Networks S.a.r.l.
    Inventors: Rohde Harald, Treyer Thomas
  • Patent number: 8768165
    Abstract: The invention refers a method and an arrangement for in service Raman gain measurements and monitoring of a wavelength division multiplex system. By measuring the power level values of a transmitted WDM signal (WMS_TX) and an optical supervisory signal (OSS_TX) at the transmitter and the power level values of the received signals (WMS_RX; OSS_RX) the Raman gain can be calculated for the different channels.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: July 1, 2014
    Assignee: Xieon Networks S.a.r.l.
    Inventor: Benoit Clouet
  • Patent number: 8755690
    Abstract: An optical network contains dispersion compensation modules with Fiber Bragg Gratings. A photo detector behind the Fiber Bragg Grating detects the not reflected rest of the gratings input signal and therefore the dispersion compensation modules input signal. This information is used to reduce the expenditure and to avoid errors of configuration or administration of the dispersion compensating subsystem of the optical network.
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: June 17, 2014
    Assignee: Xieon Networks S.a.r.l.
    Inventor: Arne Striegler