What is DWDM SFP? What areas does it mainly apply to?

Dense Wavelength Division Multiplexing (DWDM) technology is capable of transmitting data in an optical fiber using bit wavelength parallel transmission or string line transmission using the wavelength of the laser.It is widely used in different fields of communication networks, including long-distance backbone networks, metropolitan area networks (MANs), residential access networks, and local area networks (LANs).The DWDM optical module is the optical module that uses this technology, so the DWDM optical module has high bandwidth and long-distance transmission characteristics.

Fristly, what is the DWDM optical module?
The optical module multiplexes multiple optical signals into one fiber using different wavelengths, and the operation does not consume any power. These optical modules are designed for high-capacity, long-distance transmission at speeds up to 10Gbps and working distances up to 120km. At the same time, DWDM optical modules are designed according to Multilateral Protocol (MSA) standards to ensure a wide range of network equipment. The DWDM optical modules on the market usually include: DWDM SFP, DWDM SFP+, DWDM XFP, DWDM X2, and DWDM XENPAK optical modules.

After understanding the performance of the optical module, we will give you a detailed introduction to the application and function of the DWDM optical module.
The basic functions and working principle of the DWDM optical module are the same as other optical modules, which convert the electrical signal into an optical signal and then convert the optical signal into an electrical signal.However, DWDM optical modules are designed for DWDM applications and have their own unique properties and capabilities. Compared to the coarse wavelength division multiplexing (CWDM) optical module, the DWDM optical module is designed for single mode fiber and, as specified by the ITU-T, it has a DWDM wavelength of 1528.38 to 1536.86 nm (channel 17 to channel 61). Operate between. Its transmitter section uses a DWDM multiple quantum well DFB laser and is a Class 1 laser according to the international safety standard IEC-60825.

In addition, many vendors’ DWDM optical modules are compliant with the SFF-8472 MSA standard. In addition, DWDM optical modules support pluggable and tunable, with 40 common channels to choose from, which greatly reduces the need for independent pluggable modules.
According to different requirements, DWDM optical modules have different channel spacings of 0.4nm, 0.8nm and 1.6nm, and can support long-distance transmission of up to 100km, which can be used as an effective solution to solve the line bandwidth expansion.

Finally, let us know about the DWDM optical module application. The field of application of each different package of optical modules is different. E.g,
DWDM SFP optical modules are available for amplified DWDM networks, Fibre Channel, ring and network topologies for fixed and reconfigurable OADM, Fast Ethernet, Gigabit Ethernet and other optical transport systems.The DWDM SFP+ optical module complies with the 10GBASE-ZR/ZW standard and can be used for 10G fiber optic cable.
DWDM XFP optical modules, DWDM X2 optical modules, and DWDM XENPAK optical modules are commonly used in applications such as 10G Ethernet, 10G Fibre Channel, SONET (Synchronous Optical Network), and SDH (Optical Transmission Equipment).In addition, these DWDM optical modules can also be used for switch-to-switch interfaces, switch backplane applications, and router/server interfaces.

Through the above analysis, have you learned more about DWDM SFP optical modules ? At present, Fiberland Co., Ltd. is selling the above different specifications of DWDM SFP optical modules ,such as DWDM SFP, DWDM SFP+, DWDM XFP, DWDM X2, and DWDM XENPAK . 
If you are interested, please feel free to contact us.