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The optical module is mainly used in the field of data communication, and its function is to realize the mutual conversion of photoelectric signals. Due to the rise of big data, blockchain, cloud computing, Internet of Things, artificial intelligence, and 5G, data traffic has grown rapidly, and the optical interconnection of data centers and mobile communications has become a research hotspot in the optical communications industry. Where are optical transceivers used? UnitekFiber will give you a detailed introduction to the fields where optical modules can be applied.

1. Data Center

Optical modules are used in a large number of network switches, server groups which placed in the mainframe room of the data center. They are the core of the integrated wiring and information network equipment, and also the data aggregation center of the information network system. How do optical transceivers workThe connection between servers, the connection between switches, and the connection between servers and switches requires optical modules (direct-connected copper cables, active optical cables), optical fiber jumpers, and other transmission carriers to achieve data intercommunication.


 

With the growing market demand for data transmission, IDC room can enhance the business competitiveness of small and medium-sized enterprises. The diversification of data center interconnection scenarios and the individualization of customer needs have spawned different types of network equipment and transmission carriers (active optical cablesdirect-connect copper cables, optical modules, and optical fiber jumpers). Therefore, users are choosing related equipment. Or accessories, you need to make a choice according to the actual application scenario.

2. Mobile communication base station

What are optical transceivers used forThe operator's mobile communication base station also needs optical modules to realize the interconnection between devices. The base station has RRU and BBU devices. In the application, we need to connect the links of these two devices, which requires our optical modules. And fiber jumpers, in the 4G network, the equipment used for BBU and RRU connection is mainly 1.25G optical module, 2.5G optical module, 6G optical module, 10G optical module.

3. Passive WDM system

Passive wavelength division systems are mainly used in metropolitan area networks, backbone networks, and wide area networks. CWDM optical modules and DWDM optical modules are commonly used. Among them, the CWDM optical module adopts CWDM technology, which can combine optical signals of different wavelengths through an external wavelength division multiplexer, and transmit them through a single fiber, thereby saving fiber resources. At the same time, the receiving end needs to use a wavelength demultiplexer to decompose the complex optical signal.

The channel spacing of passive wavelength division multiplexing technology (CWDM) is 20nm, and the working wavelength is 1270-1610nm. The module uses the full band (1270-1610nm).

CWDM optical modules are usually used in CWDM systems, which are lower in cost than DWDM optical modules and are widely used. In a CWDM system, the CWDM optical module is inserted into the switch, and the CWDM optical module and the CWDM demultiplexer or OADM optical add-drop multiplexer are connected to work with jumpers.

4. SAN/NAS storage network

The main function of the SAN/NAS storage network is to store data. Among them, the SAN network is mainly composed of servers, fiber channel switches, storage devices, and transmission carriers (optical modules, fiber jumpers); the NAS storage network is mainly composed of NAS storage, switches, It consists of terminal equipment (computer), transmission carrier (optical module, optical fiber jumper). It should be noted that the SAN network uses Fibre Channel optical modules, which need to support the FC Fibre Channel protocol, while the optical modules used in the NAS storage network only need to comply with the Ethernet protocol.

5. 5G bearer network

The arrival of the 5G era has indeed brought a new round of growth space for the optical module industry. The 5G bearer network is generally divided into the metro access layer, the metro aggregation layer, the metro core layer/provincial trunk line, and realizes the fronthaul and transmission of 5G services. In the backhaul function, the devices at each layer mainly rely on optical modules to achieve interconnection.

The 5G fronthaul network mainly uses 25G SFP28 (eCPRI/CPRI) optical modules, including dual-fiber bidirectional, single-fiber BiDi, 25G WDM (including Tunable wavelength tunable) modules and other solutions.

5G backhaul mainly uses 25G, 50G, 100G, 200G, 400G optical modules, supports CPRI, eCPRI, Ethernet, OTN and other interface protocols, as well as NRZ, PAM4, DMT and other modulation formats.

The growth demand of optical modules mainly depends on the data communication market and the telecommunications market. In today's data era, optical modules are bound to attract new development opportunities.

For the more information, please contact us at sales@unitekfiber.com .We will try our best to support you. 


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