ADVA Optical Networking SE is a telecommunications vendor that provides network equipment for data, storage, voice and video services. ADVA Optical Networking has a global workforce of over 1,300 employees and its Fiber Service Platform has been deployed in more than 250 carriers and 10,000 enterprises. Wikipedia.
ADVA Optical Networking | Date: 2017-02-08
A method for traffic engineering on an optical transport network, OTN, comprising network elements implementing asymmetric OTN switches, said method comprising discovering by each network element of said network ODUk containers available on each of locally terminated traffic engineering, TE, links and identifying the switching limitations of the discovered ODUk containers with respect to how said ODUk containers are switchable onto the ODUk containers available on other locally terminated TE links; identifying by said network element groups of ODUk containers available on a given TE link exhibiting identical switching limitations; negotiating by said network element with its neighboring network elements properties of to be advertised child TE links each associated with a separate ODUk group; and advertising by said network element for each identified group of ODUk containers a separate child TE link parallel to the original parent TE link, wherein each advertised child TE link indicates the total number of available ODUk containers within the respective ODUk group along with the identified switching limitations exhibited by the ODUk containers of said ODUk group and wherein the re-advertised parent TE link indicates the number of available ODUk containers reduced to account for the ODUk containers associated with the separately advertised child TE links.
ADVA Optical Networking | Date: 2017-06-21
The invention relates to a random light collector device comprising a reflecting cavity (27) configured to enclose a random light source (33, 41) that randomly transmits photons in essentially the whole solid angle of 4rr steradian, the reflecting cavity (27) having an inner wall being adapted to reflect the photons in such a way that at least a portion of once or multiply reflected photons is directed to an output port of the reflecting cavity (27) and guiding means for directing the reflected photons and photons which are directly emitted to the output port (49) to a photodetector (35, 43). According to the invention, the guiding means is a hollow tube (51) having an inner wall being adapted to reflect the photons, wherein a first end of the hollow tube (51) is connected to or positioned adjacent to the output port (49) of the reflecting cavity (27) and wherein the photodetector (35, 43) is provided within the hollow tube (35) or at a second end thereof in such a way that a sensitive area of the photodetector (35, 43) covers the whole cross-section of the second end.
ADVA Optical Networking | Date: 2017-06-28
A wavelength division multiplexed telecommunication system with automatic compensation of chromatic dispersion in a predetermined wavelength band, said WDM telecommunication system comprising a probe signal detection unit at a receiver side adapted to detect amplitude modulated probe signals generated by a probe signal generation unit at a transmitter side with a predetermined relative phase difference and transmitted through an optical link to said receiver side; and a chromatic dispersion compensation unit adapted to compensate the chromatic dispersion in response to a relative phase difference of the amplitude modulated probe signals detected by said probe signal detection unit at the receiver side.
ADVA Optical Networking | Date: 2016-10-05
There are provided a system and method of assessing latency of forwarding data packets in virtual environment. The method comprises: generating packet signatures SG_(D )and SG_(A )respectively for departing and arriving data packets; maintaining a first data structure comprising records related to departing packets associated with a first virtual function (VF), each record informative of SG_(D )and registered departure time T_(D )of a given departing packet; responsive to registering arriving time T_(A )of a given monitored arriving packet SG_(A )associated with a second VF, searching the first data structure for a record matching a matching condition SG_(D)=SG_(A); modifying the matching record to become informative of latency T=T_(A)T_(D )and adding the modified record to a second data structure; and using data in the second data structure for assessing latency of forwarding packets from the ingress virtual port to the egress virtual port.
ADVA Optical Networking, Mazar, Polakevich, Shapira, Shani and Golan | Date: 2017-05-10
The present invention provides for a composition, including: a sufficient first amount of a first active agent dispersion; where the first active agent dispersion has a pKa of 0.1 - 2.0, where the first active agent dispersion is selected from the group consisting of: an acid cation exchange resin, an acidic zeolite, an acidic clay, an organic acid, an inorganic acid, and any combination thereof, and where the first active agent dispersion includes a plurality of particles; where the plurality of particles has a median diameter of between 0.5 - 1000 micrometers; and a sufficient second amount of at least one chlorite salt dispersion; where, when the composition is contacted with an aqueous liquid, the sufficient first amount of the first active agent dispersion and the sufficient second amount of the at least one chlorite salt dispersion results in a generation of chlorine dioxide radicals.
ADVA Optical Networking | Date: 2017-04-12
There are provided a system and method of assessing latency of forwarding data packets in virtual environment. The method comprises: upon specifying a transmitting monitoring point associated with a first virtual function (VF) and a receiving monitoring point associated with a second VF, generating packet signatures (SGs) for departing data packets, each uniquely characterized by respective SG_(D) and for arriving data packets, each uniquely characterized by respective SG_(A); maintaining a first data structure comprising a plurality of records related to departing packets associated with the first VF, each record informative of, at least, SG_(D) and registered departure time T_(D) of a given departing packet; responsive to registering arriving time T_(A) of a given monitored arriving packet SG_(A) associated with the second VF, searching the first data structure for a record matching a matching condition SG_(D) = SG_(A),; modifying the matching record to become informative of latency T=T_(A)-T_(D) and adding the modified record to a second data structure storing one or more modified records, each informative of latency measured for forwarding the packet SG_(D) = SG_(A) from the first monitoring point to the second monitoring point; and using data in the second data structure for assessing latency of forwarding packets from the ingress virtual port to the egress virtual port.
ADVA Optical Networking | Date: 2017-09-13
A communication network (1) comprising an optical transport domain network (2) having optical transport nodes connected to each other via physical optical links, packet switched networks (3) each having a boundary router (4) connected to an optical transport node of said optical transport domain network (2) via an access link (5); and a network management apparatus (6) adapted to perform an automatic bandwidth management of said communication network (1), wherein said network management apparatus (6) is adapted to activate or deactivate virtual links (VL), tributary ports and cross-connections between virtual and access links in the optical transport domain (2) in response to data traffic statistics of data transmitted on said access links (5).
ADVA Optical Networking | Date: 2017-09-13
The invention relates to a method for creating an optical transmit signal comprising the steps of creating an electrical discrete multi-tone signal (S_(TXi,DMT)) according to digital input data (S_(TXi)) carrying the information to be transmitted, the discrete multi-tone signal (S_(TXi,DMT)) comprising a plurality of electrical partial signals, each electrical partial signal defining a sub-channel, wherein each electrical partial signal consists of 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, and creating an optical signal (S_(TXi,opt)) by using the electrical discrete multi-tone signal (S_(TXi,DMT)) as modulating signal for amplitude-modulating the intensity of an optical carrier signal. According to the invention, the method further comprising the step of bandpass-filtering the optical signal (S_(TXi,opt)) in order to create an optical single sideband or vestigial sideband transmit signal (V_(TXi,opt)). The invention further relates to an optical transmitter device for creating such an optical transmit signal and to an optical transmitter and receiver device (3_(i)) comprising a respective optical transmitter device (13_(i)).
Agency: European Commission | Branch: H2020 | Program: RIA | Phase: ICT-14-2014 | Award Amount: 7.23M | Year: 2015
Small Cells, Cloud-Radio Access Networks (C-RAN), Software Defined Networks (SDN) and Network Function Virtualization (NVF) are key enablers to address the demand for broadband connectivity with low cost and flexible implementations. Small Cells, in conjunction with C-RAN, SDN, NVF pose very stringent requirements on the transport network. Here flexible wireless solutions are required for dynamic backhaul and fronthaul architectures alongside very high capacity optical interconnects. However, there is no consensus on how both technologies can be most efficiently combined. 5G-XHaul proposes a converged optical and wireless network solution able to flexibly connect Small Cells to the core network. Exploiting user mobility, our solution allows the dynamic allocation of network resources to predicted and actual hotspots. To support these novel concepts, we will develop: 1) Dynamically programmable, high capacity, low latency, point-to-multipoint mm-Wave transceivers, cooperating with sub-6-GHz systems; 2) A Time Shared Optical Network offering elastic and fine granular bandwidth allocation, cooperating with advanced passive optical networks; 3) A software-defined cognitive control plane, able to forecast traffic demand in time and space, and the ability to reconfigure network components. The well balanced 5G-XHaul consortium of industrial and research partners with unique expertise and skills across the constituent domains of communication systems and networks will create impact through: a) Developing novel converged optical/wireless architectures and network management algorithms for mobile scenarios; b) Introduce advanced mm-Wave and optical transceivers and control functions; c) Support the development of international standards through technical and techno-economic contributions. 5G-XHaul technologies will be integrated in a city-wide testbed in Bristol (UK). This will uniquely support the evaluation of novel optical and wireless elements and end-to-end performance.
Agency: European Commission | Branch: H2020 | Program: RIA | Phase: ICT-27-2015 | Award Amount: 3.42M | Year: 2016
DIMENSION establishes a truly integrated electro-optical platform, extending the silicon (Bi)CMOS and silicon photonics platform with III-V photonic functionality. The III-V integration concept is fully CMOS compatible and offers fundamental advantages compared to state-of-the art integration approaches. After bonding and growing ultra-thin III-V structures onto the silicon front-end-of-line, the active optical functions are embedded into the back-end of line stack. This offers great opportunities for new innovative devices and functions at the chip-level but also for the assembly of such silicon devices. As processing takes place on silicon wafers, this project has the unique opportunity to bring the cost of integrated devices, with CMOS, photonic and III-V functionality, down to the cost of silicon volume manufacturing. Such a platform has the potential to allow Europe to take a leading position in the field of high functionality integrated photonics. Moreover, the project demonstrators adhere to standards such as IEEE802.3, 25G optical components and low-power electronics, thus opening a viable route towards ultra-low-cost high-performance optical transceivers for a new era of data centres and cloud systems. DIMENSION will realise three demonstrators: A short-reach transmitter for intra-datacenter operation addressing the 400 GbE-LR8 (IEEE 802.3bs) standard making use of an array of directly modulated lasers, pulse-amplitude-modulation (PAM4) techniques and 8 wavelength channels in the telecom O-band. A medium-reach transmitter for inter-datacenter applications beyond the 400 GbE-LR8 (IEEE 802.3bs) standard by providing a tuneable coherent transmitter for inter-datacenter and metro applications for link lengths in excess of 10km using a modulator integrated on the same chip. A novel laser directly grown on silicon photonics, operated at 25Gb/s in the telecom O-band demonstrating the significant cost-saving potential of the technologies pursued in DIMENSION.