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DWDM, simply put, multiplexes optical signals of different wavelengths into the same optical fiber for transmission. DWDM technology is one of the basic technologies widely used in modern optical communication networks. It can improve the speed, capacity and reliability of optical communication. So in what areas is it specifically applied? This article will take you through the application scenarios of the DWDM transmission system. DWDM technology is mainly used in three major areas: broadband services, mobile services, and dedicated line network services. Three diagrams are used below to show where the DWDM transmission system is in these application fields and what role it plays. 1.Application scenarios of DWDM/OTN transmission system-broadband business 2. Application scenarios of DWDM/OTN transmission system - mobile services 3.Application scenarios of DWDM/OTN transmission system-dedicated line network business HTF's independently developed DWDM/OTN Optical Transmission Platfo...

OTN transmission technology is a technology that realizes functions such as service signal transmission, multiplexing, and routing in the optical domain. This technology complies with the general model of transmission network specified in ITU-T6.805. From the perspective of OTN network composition level, it can be divided into optical channel layer, circuit layer, optical transmission section layer and optical multiplexing section layer. The OTN network mainly includes key technologies such as optical buffering technology, wavelength conversion technology and optical timing regeneration technology. The OTN network can be regarded as a transition network of the all-optical network, which greatly improves the data transmission capacity of the existing network.   The network survival mechanism of the optical layer and electrical layer of OTN transmission technology is relatively complete, which can ensure the reliable transmission of signals, and has the ability of error correction a...