Experimental Demonstration of a Dual-Arm Drop Element-Based Soft-ROADM for Future Optical-Wireless Converged Access Networks

A dual-arm soft-ROADM drop operation with drop RF-signal phase-offset insensitive performance is demonstrated, which eliminates the need to dynamically control the drop RF-signal phase-offset. Thus, making soft-ROADMs highly attractive for future optical-wireless converged access networks.