Ekinops demonstrate interoperability of their equipment SDN

France Ekinops optical transport equipment vendor interoperability showcase recent performance of its DWDM optical transmission equipment and open source SDN controller. Ekinops announced that its 360DWDM system is proven interoperability with the open source operating system under ONOS SDN network project. The experimental research institutions in France b<>com conduct, which is in the network management field of new technologies, especially the SDN has a wealth of experience.

In tests, Ekinops and b<>com design and development of an interface layer SDN controllers and network management agreement between the Ekinops 360 platform together. Throughout the experiment includes a net-like structure composed of a plurality of 360 ROADM nodes. For this experiment, ONOS controller to create a 100Gbps wavelength line and automatically allocated in the mesh.

Ekinops company CTO Francois X. Ollivier said the experiment was very successful, demonstrating the ability to provide support SDN Ekinops DWDM layer of a solution for carriers.

b<>com also said to 5G network evolution needs more flexible and automation products and services. SDN / NFV based on the concept that this jointly developed interface with Ekinops fully meet the physical transmission layer level management software based on their higher rates of 100G or network management requirements, support NFV applied to a fiber network.

Ekinops help Russia ER-Telecom to deploy 100G wavelengths

France Ekinops optical transport equipment manufacturers in Russia on Friday announced three Internet and pay-TV provider ER-Telecom will deploy the 100G DWWM Ekinops equipment for expansion in the country.
 
ER-Telecom's services throughout 56 cities in eastern and southern Russia, is now facing growing traffic demand from customers. Due to set up their own costly DWDM network, ER-Telecom began to hire third-party network of wavelength and using Eknipos equipment for transmission. Such an approach can help ER-Telecom quickly and economically increase the capacity.

ER-Telecom said they Tumen from Moscow in the east to the west, carried out extensive testing of 100G architecture, Ekinops equipment is the best choice. They are expected to complete the deployment of the equipment within two weeks.

Ekinops company CTO Francois Xavier Ollivier said that many service providers are reluctant to use outside of the wavelength plan, fearing operability and interoperability. Over the past eight years, Ekinops has accumulated a lot of experience outside the wavelength deployment that can support every DWDM vendor. Ekinops to ER-Telecom successfully demonstrated the technology and the ability to solve this problem.

Ekinops 360 system provides support through a wavelength outside miniaturized equipment, support 10*10 a muxponder and 100G Transponder within 1RU size.

WDM and SDH difference?

SDH, called "digital synchronization sequence", mainly used for drop multiplexing E1 (2M), E3, T3, STM-1 ~ STM-64 and other ranking data transmitted. And it can be various types of data such as: ATM, E1, FE, GE and other types of data transmission unified package, compatibility strong;WDM, called wavelength division multiplexing system with DWDM and CWDM points, primarily distinguished by the frequency of the light wave signals of different channels used to transmit signals, which can carry include transmission SDH, FCOM, GE and other large particles of business, Mainly used for inter-provincial and provincial transport network.

Tunable laser application in optical communication

Tunable lasers network applications can be divided into two parts: static applications and dynamic applications.

In static applications, tunable laser wavelength is set in the course does not change over time. The most common application of static laser is used as a source of alternative, i.e., for use in dense wavelength division multiplexing (DWDM) transmission system, so that a tunable laser to act as a plurality of fixed wavelength laser and a flexible back-up source of the laser can be reduced by the number of systems required to support all the different wavelengths of the line card.

Static applications, the main requirements for tunable laser is the price, output power and spectral characteristics, ie width and stability and it should replace the fixed-wavelength laser fairly. Wavelength tunable range greater the cost, the better, without the need to adjust the speed more quickly. Currently, with a precision of DWDM tunable laser system more and more applications.

Future, as a backup tunable lasers also require faster response speed. When a DWDM channel failure, a tunable laser can automatically enable it back to work. To achieve this function, the laser must be adjusted and locked at a wavelength of failure within 10 ms or less time, so as to ensure that the entire recovery time is shorter than the synchronous optical network requirements of 50 milliseconds or less.

In dynamic applications require a tunable laser wavelength can be changed regularly at work, in order to enhance the flexibility of the optical network. Such applications are generally required to provide dynamic wavelength in order to join or propose a wavelength from one network segment to meet the capacity required changes. It has been proposed a simple and more flexible ROADMs structure: this is based on use of tunable lasers and tunable filters architecture. Tunable lasers can add to the system certain wavelength, and tunable filter can filter out certain wavelengths from the system. Tunable lasers can also address cross-coupling inside the light wavelength blocking problems. To avoid this problem optical switching interface - Currently, most optical cross-coupled fiber ends using light - electricity. If you are using tunable lasers at the input to the OXC input, you can choose to protect certain wavelengths of light waves with a clear path to the end.