Fronthaul is defined as the fiber-based connection in RAN infrastructure between the Baseband Unit (BBU) and Remote Radio Head (RRH). Fronthaul originated with LTE networks when operators first moved their radios closer to the antennas. As the name implies, mobile fronthaul optical modules are optical transceiver modules used in mobile base stations, mostly industrial grade. This new link was established to supplement to the backhaul. Compare SR, LR, ER, BiDi, and CWDM types covering transmission distance, wavelength, power consumption, and application scenarios. With the full-scale deployment of 5G networks, the fronthaul network connecting AAUs (Active Antenna Units) and DUs (Distributed Units) demands massive quantities of. The deployment of 5G networks has accelerated the demand for high-performance optical modules, which serve as the backbone of high-speed, low-latency data transmission in wireless infrastructure. It is a flexible and cost-efficient solution for Ethernet, CPRI and eCPRI transport, separately or together.