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Wavelength Division Multiplexed (WDM) point to point networks play a vital role in the backbone transport networks. The set of light paths at optical layer forms a logical topology. This paper deals with the design of Logical Topology for wavelength routed WDM networks. This paper proposes new heuristics on fiber optic networks to develop efficient logical topology design and to examine the critical aspects of performance constraints like single hop traffic maximization, average weighted hop count and number of wavelengths/transceivers. Further two new heuristics LUMHSN and ILUMHSN are proposed, tested and compared the performances with the existing HLDA on 14-node NSFNET Model.