Abstract-Optical code division multiple access (OCDMA) has the potential to provide flexibility and scalability for future local area networks (LANs) due to ist simplicity in network control and managemnet. OCDMA also provides low access delay that is suited well for bursty LAN traffic. Furthermore, optical coding allows user to share the same optical bandwith and to operate asynchronously. in this paper, we present new random strict optical orthogonal codes (RS-OOCs), where a code set of RS-OOC is randomly generated and tested by a computer.the RS-OOC can achieve the minimum correlation value of one for the least multiple access interference in incoherent OCDMA computer networks. moreover, implementation model is a crucial factor for OCDMA network architectures, without requiring synchronization among individual users. to realization of the RS_OOC, an implementation model of OCDMA-based LAN by using MATLAB simulink is investigated for four-pair users in the network. then, we discuss the simulation results that are obtained from representative OCDMA-based LAN. the results show that the implementation model is straightforward and easy to implement LAN by using the OCDMA technique as the MATLAB simulink model.