Walsh-hadamard code design using optical nonlinear material

In this paper, the Walsh-Hadamard code design using optical nonlinear material is presented. Walsh-Hadamard codes are absolutely orthogonal binary user codes which have so many favourite applications in synchronous multicarrier communications. However, the optical application of Walsh-Hadamard codes has been important role for optical CDMA. Realization comes has nonlinear optics has been increased interest for all-optical signal processing in high speed photonic networks due to its inherent attributes of polarization. To this aim, the designs need the use of optical nonlinear material capable of controlling multi-valued signals. To achieve this goal the polarization properties of light for Walsh-Hadamard codes design is explored in this paper and the superiority of the proposed scheme is verified by simulation results.