50G PAM4 QSFP28 BIDI optical module products are mainly for the emerging 5G mid-backhaul applications, laying a solid industrial foundation for the large-scale commercial use of 5G bearer networks.
In the 5G era, for operators, increasing bandwidth and reducing network construction costs are important demands. At present, 50G PAM4 technology saves expensive optical tube cores to achieve cost reduction through electrical layer coding technology, which is one of the main technical directions of 5G bearer backhaul networks. With the launch of the 50G PAM4 BIDI product, HTF will help reduce the cost of 5G bearer networks to a reasonable level during large-scale commercial use.
Based on PAM4 (4 Pulse Amplitude Modulation, 4th order pulse amplitude modulation) technology, a 50G QSFP single-fiber bidirectional optical module was designed to meet the current situation of high bandwidth requirements, tight fiber resources, and increased speed requirements in the fronthaul network of 5G network construction. Use BOSA optical devices to achieve single-fiber bidirectional (BIDI, Bidirectional) transmission to improve fiber resource utilization; use PAM4 modulation technology to achieve 25G optical devices to transmit 50G signals, doubling the single wavelength rate; verify performance through eye diagram and jitter stress testing to meet IEEE802 The 50GE Ethernet related requirements in .3cd can stably carry out 10 km information transmission.
