This paper presents a scalable logical topology for multihop optical networks based on de-Bruijn graph, a regular non-scalable one with simple routing strategy. In addition to its scalability property, this new topology maintains the simplicity in routing as in de-Bruijn graph while keeping its diameter same throughout the insertion of nodes as that in a de-Bruijn graph where the diameter is of logarithmic value of its number of nodes. Also, perturbation in the network is maintained at a very low level, while inserting a node in the network.