At present, with the rapid development of high-definition, massive video, cloud computing and big data, self-media, Internet of Things, and artificial intelligence, the IP data traffic in global data centers is increasing year by year, and the demand for 100G optical modules is also increasing. Next, ETU-LINK will take you to the 100G optical modules world.

1、100G QSFP28 SR4

The 100G QSFP28 SR4 optical transceivers adopts 4-channel 25G NRZ multi-mode parallel technology, and the transmission distance can reach up to 70m or 100m by 12-core MPO patch cord (OM3/OM4) multi-mode fiber. It is widely used in 100GBASE-SR4 Ethernet, OTN OTU4, 128GFC, InfiniBand 4x EDR.

2、100G QSFP28 PSM4

The 100G QSFP28 PSM4 optical transceivers adopts 4-channel 25G NRZ single-mode parallel technology, and the transmission distance of single-mode fiber can reach up to 2km by 12-core MPO patch cord (G.652) . It is widely used in 100G PSM4 Ethernet and InfiniBand 4x EDR links.

3、100G QSFP28 CLR4

The 100G QSFP28 CWDM4 optical transceiver adopts 4-channel 25G NRZ wavelength division multiplexing technology (CWDM4), and the transmission distance of single-mode fiber can reach up to 2km. It is widely used in 100G CWDM4 Ethernet and InfiniBand 4x EDR links.

4、100G QSFP28 LR4

The 100G QSFP28 LR4 optical transceiver adopts 4-channel 25G NRZ wavelength division multiplexing technology (LWDM4), and the transmission distance can reach up to 10km by the duplex LC interface OS2 single-mode fiber. It is widely used in 100GBASE-LR4 Ethernet and OTN OTU4 links.

5、100G QSFP28 ER4

The 100G QSFP28 ER4 optical transceiver adopts 4-channel 25G NRZ wavelength division multiplexing technology (LWDM4), and the transmission distance by single-mode fiber can reach up to 40km. It is widely used in 100GBASE-ER4 Ethernet and OTN OTU4 links.

The size of the 100G QSFP28 optical transceiver is the same as that of the QSFP+ optical module, and it also has 4 parallel data channels, but the transmission rate of each channel is increased from 10Gbit/s to 25Gbit/s, thus reaching a transmission rate of 100Gbps.

Using QSFP28 optical module can directly upgrade from 25G to 100G without going through 40G. Therefore, compared with 10G→40G→100G upgrade, the 10G→25G→100G upgrade method can greatly simplify the wiring system of the data center and reduce the laying cost of the wiring system .