For data centers, fiber technology is no longer dispensable, or only used to solve the most difficult problems of interconnection technology, and now, high bandwidth, high port density, and low power requirements require fiber technology to solve, And the current fiber technology is already a technology with batch of products and low-cost, widely used in switches and server interfaces and other applications.

In data center infrastructure applications, 10G, 40G, and 100G optoelectronic products provide the highest bandwidth, highest density, lowest power consumption, and lowest total cost of system interconnection for the data center. At the same time, these optoelectronic products and devices are moving to 400G and higher speed, together with the industry promoting optical interconnect technology to help achieve large-scale, high-bandwidth, high flexibility, high efficiency, highly interconnected modern data center.

The pluggable optical module addresses the following issues for the data center:

1. Extension for the data center distance 

Optical communications companies such as cozlink offer products that cover all today's Ethernet rates from 100Mb / s to 100Gb / s, where single-channel 25G Ethernet optical modules lead the optical module market of next generation of servers and switches. The 40G QSFP plus product can support transmission distance up to 300m, much higher than the IEEE40G Ethernet’s standard distance. 40G QSFP plus the product of 40KM is delivered on single-mode fiber, and 10G SFP +plus product is for transmission of 80km.

2. High density and low loss

For the focus on data center’s cooling management issues, low-power optical module products came into being. Cozlink launched 100G QSFP28 optical module with maximum power consumption of only 3.5W. 40G and 100G active cable products possesses power setting function flexibly configured by the host system  

3. Cost saving

Today, most data centers are still based on 10G Ethernet architectures, using 10GBase-SR short-range transmission on OM3 / OM4 duplex multimode fibers. As data centers move from 10G to 40G or even 100G, customers still want to keep current fiber architecture. However, the SR4 optical module needs to be connected to a multi-mode fiber optic cable (multi-core) on the interface. The LR4 optical module requires duplex single-mode fiber. Both of them do not exist in the duplex multimode fiber data center which has been deployed.

4. Moving towards 400G

100G Ethernet optical module demand has been in the mainstream market trend. CFP optical module supplied by Cozlink provides a stable and reliable performance for the operator router and transmission system, and CFP2, CFP4, CXP and QSFP28 modules are also widely used in telecommunications, emerging data centers and 100G systems in the enterprise network. At the same time, Cozlink is actively developing next-generation Ethernet products, including products at speeds of 200G and 400G to meet the long-term technical requirements of future high-performance data centers.