Due to new applications such as 4K high-definition video, live broadcast and VR have promoted the rapid growth of global network traffic, and new applications such as cloud computing, laaS services and big data have higher requirements for data transmission in data centers, global data centers have been upgraded from the original 10G/40G to 25G/100G, which has triggered an increase in the demand for 25G/100G optical modules. This blog will tell you about the demand of 100G optical module market and the types of 100G optical module.

According to the world famous institutions, the global 100G optical module market size will reach about US $3 billion in 2018. It is estimated that in 2019, with the explosion of demand for 100G optical modules in large and medium-sized data centers such as Facebook, Amazon, Alibaba Cloud, Tencent, Huawei, etc., the global shipment volume is expected to continue to double, and the market size will reach about US $3.6 billion.

 In the future, the life cycle of 100G optical modules will be very long. Although there are 200G, 400G and even 800G optical modules, due to cost and reliability considerations, there will not be large-scale commercial use, while 100G optical modules are different. In addition to large-scale applications in large data centers, small data centers will also be used from convergence layer switches to core switches. Therefore, the applicability of 100G optical modules is relatively wide. Let's review the types of 100G QSFP28 optical modules.

 100G QSFP28 multimode optical module

100G QSFP28 multimode optical module is usually transmitted with OM3 and OM4 multimode optical fiber patch cords, and OM5 can also be used according to actual application needs. The below optical modules use OM4 optical fiber.

100G QSFP28 single-mode optical module

The 100G QSFP28 single-mode optical module uses four channels of 25G 1310 wavelength, single wave 100G 1310 wavelength, four channels of 25G CWDM coarse wavelength division multiplexing, and four channels of 25G LWDM fine wavelength division multiplexing to transmit the 100G link.

The above is the demand trend and types of 100G optical modules introduced by ETU-LINK. For more information, please refer to previous blogs.