Generic Compatible 100GBASE-LR QSFP28 PAM4 1310nm 10km DOM Duplex LC Transceiver Module for SMF

To reduce cost and provide better transmission efficiency, 100G single-lambda uses PAM4 optical signaling and coding for single-wavelength 100G transmission. By using fewer lasers and detectors and reducing optical complexity, single-wavelength 100G modules are less costly than 4-wavelength 25Gb/s transmission modules.

There are two modulation modes for 400G optical modules, 8x50G PAM4 and 4x100G PAM4. 4x100G PAM4 reduces the number of optical devices and the complexity of optical structure compared with 8x50G PAM4, so the single-wave 100G technology provides a more cost-effective realization method for 400G applications, and the use of 100G single-wave modules can make 400G network upgrading more convenient. The use of 100G single-wave optical modules can make the 400G network upgrade more convenient.

The QSFP-100G-LR optical module has 4x25G NRZ modulation on the electrical side and 1x100G PAM4 modulation on the optical side, while the QSFP-100G-LR4 optical module has 4x25G NRZ modulation on both the electrical and optical sides.