A preliminary analysis to the current situation of the power grid optical transmission network was made.The power grid optical transmission network is facing huge challenges such as the increasing transmission capacity

the increasingly complex topology

the flexible scheduling of services and the evolution of network intelligence.By adopting photoelectric layered cross processing

electric layer cross focus on small particles business convergence and long distance electric regeneration

optical layer routing provides the flexible wavelength routing

based on colorless

directionless

and contention less flexible grid configurable add/drop architecture CDC-F ROADM technology to optimize network structure

improve the network transmission efficiency

reducing energy consumption and space

which also benefits the evolution of network intelligence

and greatly save the construction and operational costs.