Under the increasing demand of cloud services, the popularity of 100G metropolitan area network is inevitable, it is only a matter of time.With the popularity of the Internet, the data traffic of MAN increases, and the network bandwidth pressure is increasing. The original capacity of 10G and 40G WDM devices is gradually unable to meet the high bandwidth demand. The 100G WDM device can carry more traffic, which is very suitable for large MAN applications.What are the advantages of 100G MAN Network?In traditional 10G and 40G MAN networks, operators choose fixed passive filter technology or ROADM technology to deploy optical networks. Passive filter provides low cost and easy to deploy point-to-point connection for MAN, but it lacks flexibility and scalability. The MAN scheme based on ROADM is easy to operate and flexible, but there is a high installation cost.Unlike 10G and 40G MAN networks, 100G MAN networks employ newly developed coherent packet optical technology, which is as flexible and scalable as ROADM-based networks, but without expensive wavelength selective switches (WSS) and optical filters. With the help of related technologies, 100G MAN can support not only point-to-point transmission, but also point-to-multipoint transmission, making the network flexible and ready to meet future needs. In addition, 100G MAN has the following advantages:1, greater capacity, single fiber transmission rate up to 100G, to meet the demand for greater bandwidth;2. Cost advantage: advanced technological innovation can help the network to continuously reduce costs;3. High competitiveness and high expansibility help network suppliers improve their competitiveness;How to establish a 100G MAN Networks?The network architecture of MAN is usually divided into three layers: core layer, convergence layer and access layer. In the convergence layer and access layer, different transmission technologies are adopted, namely IP RAN and PTN, IP address and routing. The former is used in mobile network, and the latter is used in broadband network.What are the core devices?Similar to 10G and 40G MAN, 100G WDM Module is needed in the core layer of 100G MAN. In some special applications, optical amplifiers and dispersion compensation modules are also needed.100G MAN mainly uses 100G DWDM CFP coherent optical module, it uses four channels, each channel wavelength can be tuned in DWDM network, and single-mode duplex jumper collocation transmission, finally achieve a total rate of 100G 4*25G.WDM is a core technology. DWDM platform can provide channels for 10G, 40G to 100G upgrade. Optical amplifiers are used to overcome fiber attenuation caused by uneven distribution of optical power and other factors, and dispersion compensation modules are widely used to overcome the interference between signals.Optical amplifiers are used to overcome fiber attenuation caused by uneven distribution of optical power and other factors, and dispersion compensation modules are widely used to overcome the interference between signals.ConclusionUnder the increasing demand of cloud services, the popularity of 100G metropolitan area network is inevitable, it is only a matter of time.
