The module contains a pair of optical filters and lasers/photodetectors. BiDi transceiver, a compact optical transceiver with WDM (wavelength division multiplexing) technology and SFP multi-source protocol (MSA) compliance, allows fast data transmission using a single fiber optic for both sending and receiving signals, saving resources and cutting infrastructure costs. In practical network deployments, this makes BiDi SFP modules a highly effective solution for. In the pursuit of seamless connectivity, BiDi (Bidirectional) optical modules offer the advantage of conserving optical fiber resources in optical communication. While SMF is often required for long-haul connections, MMF remains the workhorse of the data center.