The data center ecosystem is becoming more and more unprecedented growth and innovation nowaday. The raising new architectures and enhanced levels of performance strongly drive the depoyment and installation moving forward ,which perfectly meets the demands of the pursue of highper scale.
When dealing with OTN (Optical Transport Network), there are two main types of Wavelength Division Multiplexing (WDM) systems: Coarse Wavelength Division Multiplexing (CWDM) and Dense Wavelength Division Multiplexing (DWDM). As two modern WDM technologies, they are both used for increasing the bandwidth of fiber by combining optical signals of different wavelengths on one strand of fiber.
Due to the ongoing large increase in bandwidth demand, Data Center connections are expected to move from 25G/100G to 100G/400G.
There are many packaging types for 100G optical modules, the common ones are: QSFP28, CXP, CFP, CFP2, CFP4, etc. At present, 100G optical modules are being used more and more widely in enterprise data centers.
With the rapid development of 4K, 8K, big video, 5G and the Internet/mobile Internet, Internet of Things, IDC, etc., capacity requirements strongly promote the accelerated innovation of optical transmission technology, and optical modules evolve to 25G, 40G, 100G, and 400G.
The 10G module has undergone development from 300Pin, XENPAK, XPAK, and XFP, and finally realized the transmission of 10G signals in the same size as SFP, which is SFP+.
On the basis of XENPAK and XPAK, SerDes is completely removed, the SerDes part is placed outside the optical module, and a serial 10Gbps electrical interface is made on the optical transceiver.
X2 evolved from the XENPAK standard, and its internal functional modules are basically the same as XENPAK. As we all know, XENPAK optical modules need to be slotted on the circuit board when they are installed on the circuit board, and high-density applications cannot be realized. The improved X2 optical module (its volume is only about half of XENPAK) can be directly placed on the circuit board, so it is suitable for high-density rack systems and PCI network card applications.
Small form-factor (SFF) transceivers are designed to support Fibre Channel、Gigabit Ethernet、SONET/SDH, and many other communications standards, it is a kind of compact optical transceiver used in the multi optical communications industry, not only used in data communications but also used in telecommunication applications.