Investigating the influence of thermal coefficients on 2-D WH/TS OCDMA code propagation in optical fiber

This paper presents an extension of the previous investigation of the effect of environmental temperature variation on the bit error rate (BER) performance of multiwavelength 2- dimensional wavelength hopping time spreading optical code division multiple access (2D-WH/TS OCDMA) signals that utilises picosecond pulses for code formation. Using equations already derived in the literature for modelling the effects of temperature variation on autocorrelation signal resulting from the decoding of an incoherent 2D-WH/TS OCDMA encoded signal which consists of w wavelength pulses each having a pulsewidth of τ after propagating in L (Km) of fibre, the author arrive at the expression for the envelope of the resulting autocorrelation peak S_t.