The purpose of distributed fiber optic sensing (DFOS) is to detect and monitor changes in the physical environment surrounding a fiber optic cable. DFOS technology utilizes the optical fiber as a sensing element, allowing for distributed measurements of temperature, strain, vibration, and other physical parameters along the length of the fiber. Distributed fiber optic sensing (DFOS), has been proposed to be a new feature for IOWN Global Forum’s Open All Photonics Network (APN). This PoC is designed to achieve the understanding of the crosstalk between the fiber sensing signals and the optical communication signals to verify the feasibility of having both signals co-existing on the same optical network, especially over the new Open APN architecture.