By leveraging Wavelength Division Multiplexing (WDM) to assign distinct wavelengths for upstream and downstream traffic, BiDi effectively doubles the capacity of existing fiber infrastructure. The proposed solution indicates that digital coherent technology can be feasible and transform the access networks, enabling ubiquitous new services and applications with uncontended, multi-gigabits/user broadband connections. The signalling scheme used in access networks require electrical. Fibre-to-the-Home/Premise/Business or Building (FTTx) is widely viewed as the only access network technology capable of meeting this demand. However, it is highly cost-sensitive since the cost of an overall access network is born solely by the end users sup-ported in the network. This technique enables bidirectional communications over a. Based on its ultra-low backscattering characteristic, anti-resonant hollow-core fiber is a good medium for bidirectional transmission, which means that the wavelengths of the transmission channels are the same in both directions. In an era where connectivity and data exchange are paramount, WDM stands as a. Bidirectional Fiber (commonly referred to as BiDi Fiber) is an optical communication architecture that transmits and receives data simultaneously over a single strand of optical fiber.
