ADVA Optical Networking SE Patent applications |
Patent application number | Title | Published |
20150304244 | Using SerDes Loopbacks for Low Latency Functional Modes With Full Monitoring Capability - An apparatus comprising high speed ports connected via an integrated high speed serial switch fabric and serializer/deserializer circuits to an internal processing logic, wherein said high speed serial switch fabric is adapted to switch a serial reception signal received by a high speed port to at least one other high speed port of said apparatus and/or to the serializer/deserializer circuit of the receiving high speed port. | 10-22-2015 |
20150131988 | METHOD AND APPARATUS FOR MONITORING MECHANICAL FIBER STRESS OF OPTICAL FIBER SPANS - 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. | 05-14-2015 |
20150086170 | Fiber Optic Component Holding Device - A holding device for holding cylindrical fiber optical components comprising at least one stackable body each having at least one recess adapted to receive cylindrical fiber optical components. | 03-26-2015 |
20140376404 | METHOD FOR TRAFFIC ENGINEERING ON NETWORKS MADE OF ASYMMETRICAL NETWORK SWITCHES - An asymmetrical network switch adapted to auto-discover and advertise into a traffic engineering, TE, domain a switch detailed connectivity matrix, SDCM, containing for each allowed switching combination of interfaces of said asymmetrical network switch at least one switch detailed connectivity matrix entry, SDCME, wherein each said SDCME represents an internal to said asymmetrical network switch potential connection interconnecting the interfaces of said interface switching combination, wherein a SDCME advertisement includes a switch detailed connectivity matrix entry cost vector, SDCME CV, which comprises a set of attributes describing cost penalties in terms of various service characteristics that a network service incurs if it selects a path or a tree traversing the asymmetrical switch in accordance with the SDCME. | 12-25-2014 |
20140308041 | Optical Network Element and Optical Transmission System - The invention relates to an optical network element, particularly an optical line terminal, OLT, for transmitting and receiving signals wire an optical network that comprises at least one optical fiber link and at least one further optical network element. | 10-16-2014 |
20140177657 | Optical Fiber Transmission System - An optical fiber transmission system adapted to provide a remote passive identification of components deployed in said transmission system, wherein each component comprises an associated passive optical identification unit adapted to provide identification of a component type of the respective component on the basis of a received optical identification signature carried in an optical identification signal to said component. | 06-26-2014 |
20140161458 | Method and Apparatus for Increasing a Transmission Performance of a Hybrid Wavelength Division Multiplexing System - 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. | 06-12-2014 |
20140153921 | METHOD AND APPARATUS FOR DETECTING UNCHARACTERISTIC POWER LEVEL CHANGES OF AN OPTICAL SIGNAL - A monitoring apparatus for detecting uncharacteristic short-term power level changes of an optical signal transmitted through an optical fiber, said monitoring apparatus comprising a power level variance calculation unit adapted to calculate a power level variance on the basis of a long-term power level and a current power level of said optical signal and a short-term variance filter adapted to filter transient changes indicated by the calculated power level variance and to generate a trouble occurrence indication indicating an uncharacteristic short-term power level change, if the filtered power level variance exceeds a predetermined power level variance. | 06-05-2014 |
20140149526 | Latency Monitoring Function - A network comprising a latency monitoring point adapted to calculate a forward latency of a path between a master node and a slave node on the basis of time stamps which are exchanged periodically between said master node and said slave node by a time alignment protocol used in said network. | 05-29-2014 |
20140064728 | METHOD AND APPARATUS FOR SUPPRESSING OPTICAL BEAT INTERFERENCE NOISE IN RAMAN AMPLIFIERS - A method and apparatus for suppressing pump-mode optical beat interference noise in a Raman amplified fiber link of an optical network, wherein a wavelength of a laser beam generated by a first pump laser and a wavelength of a laser beam generated by a second pump laser of a pair of polarization multiplexed pump lasers are detuned with respect to each other to suppress the optical beat interference, OBI, noise in the Raman amplified fiber link of said optical network. | 03-06-2014 |
20140050472 | MOBILE TERMINAL FOR SERVICING A TELECOMMUNICATION SYSTEM - The invention pertains to a mobile terminal for servicing a telecommunication system, wherein the telecommunication system comprises a system controller and at least one module and/or at least one interface port (that is externally accessible in the inserted state of the module), wherein the mobile terminal features an identification device in order to identify a module or an interface port. The invention further pertains to a utilization of such a mobile terminal, as well as an arrangement consisting of a telecommunication system and such a mobile terminal. | 02-20-2014 |
20140003809 | METHOD AND APPARATUS FOR PERFORMING AN AUTOMATIC POWER ADJUSTMENT FOR AN OPTICAL SIGNAL | 01-02-2014 |
20130336655 | Method of Operating a Primary Optical Node and a Secondary Optical Node - The invention relates to a method of operating a primary optical node, particularly an optical line terminal (OLT), for an optical communications system, wherein said OLT is configured to receive at least one upstream optical signal (uos) from at least one secondary optical node, particularly an optical networking unit (ONU), within at least a first wavelength range (wr | 12-19-2013 |
20130251364 | METHOD FOR OPERATING AN OPTICAL TRANSMISSION SYSTEM - An optical transmission system method including generating for a tunable laser a pilot tone having an adjustable pilot tone frequency identifying a wavelength division multiplexing channel used by the tunable laser; multiplying the pilot tone with pilot tone data to provide a pilot tone data signal; supplying the pilot tone data signal and a high frequency data signal to the tunable laser generating an optical laser signal output by the tunable laser responsive to the supplied signals; transporting the optical laser signal to a central wavelength to locker; converting the received optical laser signal to provide a pilot tone data signal for wavelength division multiplexing channels demodulated to detect the pilot tone and the pilot tone data for each individual wavelength division multiplexing channel; and identifying the wavelength division multiplexing channel on the basis of the pilot tone frequency of the detected pilot tone and evaluating the pilot tone data. | 09-26-2013 |
20130188478 | Method and a System for Providing a Flexible Secondary Data Path - A method and an apparatus for providing a flexible secondary data path control, said method comprising the steps of: detecting (S | 07-25-2013 |
20130136448 | MESHED PROTECTED PASSIVE OPTICAL ACCESS NETWORK STRUCTURE AND OPTICAL NETWORK UNIT STRUCTURE THEREFORE - Provided is an optical network system and optical network unit (ONU) structure enabling a passive optical access network having a meshed structure with at least two central nodes and plurality of ONUs. One embodiment employs a partially or fully meshed structure of optical fibers between customer locations and multiple optical line terminal (OLT) locations creating a passive optical access network. The ONUs can communicate with a neighboring OLT or ONU using a symmetrical or asymmetrical TDM scheme, and convert between the different TDM schemes. For this purpose, the ONU structure includes two transceiver units, one connected to the western network port and the other to the eastern. The ONU can establish communication between either network port and a further ONU or an OLT, with the ONU controller adapted for passing through data, and converting TDM schemes. | 05-30-2013 |
20130064542 | OPTICAL FREQUENCY LOCKING METHOD AND DEVICE FOR OPTICAL DATA TRANSMISSION - An optical frequency locking method tunes each of a plurality of narrow-band optical channel transmit signals (having arbitrary channel frequency spacings) to a dedicated optical channel frequency. The method includes tapping-off a portion of the optical power of the respective channel transmit signal and filtering the tapped-off channel transmit signal using at least one optical filter device. The method also includes monitoring, as an optical input signal, the optical power of the respective channel transmit signal supplied to the at least one optical filter device and, as an optical output signal, the optical power of the filtered channel transmit signal. The method further includes tuning, within a predetermined locking range for the dedicated optical channel frequency, the optical frequency of the respective channel transmit signal such that a predetermined value for the ratio of the output signal and the input signal is reached. | 03-14-2013 |