100G QSFP28

The rapid development of optical communications data centers is an inevitable trend, so for suppliers, to maintain priority competitiveness, it is necessary to constantly adjust the packaging of optical modules, and constantly improve the transmission rate of optical modules. The rate of light module sits 155M, 622M, 1.25G, 2.5G, 4.25G, 10G, 40G to the present 100G, 200G or even 400G optical module. The 100G QSFP28 optical module first appeared in 2013, and after the development of recent years, the 100G QSFP28 optical module has been derived from several categories, with different optical module standards and suitable for different transmission applications. The transmission rate of the 100G QSFP28 optical module is 100G, while the optical module is transmitted using a four-channel fiber, so the transmission data rate can be up to 26Gbps per second. In addition to the 100G QSFP28 optical module, the 100G QSFP28 high-speed cable is also widely welcomed. Because this product can greatly reduce the cost of 100G short-range transmission. There are two main types of 100G QSFP28 high-speed cable: QSFP28 to QSFP28 high-speed cable and QSFP28 to SFP28 high-speed cable. QSFP28 to QSFP28 high-speed cable at both ends are QSFP28 fiber optic transceiver, QSFP28 to SFP28 high-speed cable at one end is QSFP28 fiber optic transceiver, the other end is 4 SFP28 fiber optic transceiver device. In general, the length of the 100G QSFP28 high-speed cable is no more than 5m.

100G QSFP28 Types

Since most of the data center uses are multimode fibers, IEEE has developed a standard specifically for multimode fiber short-range transmission applications for the 100G QSFP28 optical module: 100GBASE-SR4. The 100G QSFP28 SR4 optical module uses an MTP interface (8 cores) with a transmission distance of 70m when used with OM3 multimode fiber and 100m when used with OM4 multimode fiber. For 100G long-distance transmission, IEEE has also developed a 100GBASE-LR4 standard for the 100G QSFP28 optical module. The 100G QSFP28 LR4 optical module also uses four fiber channels, the difference is that it introduces WDM technology, can use the different wavelengths of the four fiber channels on a single fiber transmission, so the 100G QSFP28 LR4 optical module is a duplex LC interface, The transmission distance can be up to 10km when used with a single-mode fiber. The 100G-PSM4 is a multi-source protocol (MSA) designed for 100G QSFP28 optical modules. The 100G QSFP28 PSM4 optical module is mainly used in medium- and long-distance transmission applications, using the MTP interface (8 cores) and can reach a transmission distance of up to 500m when used with a single-mode multi-core fiber. 100G-CWDM4 is also a multi-source protocol (MSA), 100G QSFP28 CWDM4 optical module also introduced WDM technology, using the duplex LC interface, with single-mode fiber when using the transmission distance can reach 2km, its transmission distance is shorter than 100G QSFP28 CWDM4 optical module The price is much cheaper, too.

100G QSFP28 Benefits

Since the release of the IEEE802.3ba standard in 2010, the application of 100G has been feasible from the technical level, from 2010 to the present, 100G application and technical level of discussion has been a lot of concern. The 100G QSFP28 optical module is packaged in the same way as the 40G QSFP-optical module, and all use four fibre channels to transmit data, except that the transmission rate of each optical fiber channel of the 100G QSFP28 optical module can reach up to 28Gbps, mainly used in 100G transmission applications. Compared to the 100G CFP optical module, the 100G QSFP28 optical module is more suitable for high density cabling and is popular in most data centers. The first generation of 100G optical module is a very large CFP optical module, followed by the emergence of CFP2 and CFP4 optical module, where CFP4 optical module is currently the latest generation of 100G optical module, its width is only 1/4 of the CFP optical module, the package size and QSFP plus optical module package size is the same. The QSFP28 optical module has a smaller package style than the CFP4 optical module, which means that the QSFP28 optical module has a higher port density on the switch, in fact, a 1RU switch on the front panel can install a total of 36 QSFP28 optical modules. The QSFP28 optical module typically consumes no more than 3.5W when operating, while other 100G optical modules typically consume between 6W and 24W. From this point of view, the QSFP28 optical module consumes much less power than other 100G optical modules.

100G QSFP28 from Professional China Manufacturer

The 100GBASE-SR4 QSFP28 optical module is a parallel 100G optical module. The QSFP28 full-duplex optical module offers four separate send and receive channels, each with a 25Gbps operation at 100 meters of the OM4 MMF, with an overall data rate of 100Gbps. The 100GBASE-LR4 QSFP28 optical module is generally used with LC single-mode fiber-optic jumpers and can travel up to 10km. The 100GBASE-LR4 QSFP28 optical module converts 4 25Gbps electrical signals into 4-way LAN WDM optical signals and reuses them as single-channels for 100G optical transmission. At the receiving end, the module reuses the 100G optical input as a 4-way LAN WDM optical signal and converts it into a 4-way electrical signal output channel. The QSFP28 PSM4 optical module is a high-speed and low-power product designed for optical interconnect in data communication applications. It complies with the PSM4 MSA optical interface specification, has a hot-swappable QSFP form factor, built-in digital diagnostic function, a total of 4 separate full duplex channels, each channel up to 25.78Gbps data rate. QSFP28 CWDM4 optical module has a transmission rate of 103.1Gbp, which is mainly used in the fields of computation and high-frequency trading, and its cost is significantly higher than that of QSFP28 PSM4 optical module. Through coarse wave multiplexing (CWDM) technology, the QSFP28 CWDM4 optical module uses 1270nm, 1290nm, 1310nm and 1330nm wavelengths to be reused on a single-mode fiber.

The Huihongfiber range of optical connectivity products includes optical modules, optical passive devices, active fiber optic cables, high-density (MPO) cabling, cloud programmers and diagnostics. The main coverage of data center and cloud computing, metro network and broadcast video, mobile network and 5G optical transmission three areas. huihongfiber provides customers with a one-stop optical network device and low-cost products as a global supplier through proprietary design.