Multi Slot Amplitude Coding Performance improvement with level spacing optimization

We reported an optimization method to improve Multi Slot Amplitude Coding (MSAC) optical fiber system performance. Simulation result clearly shows that optimum back to back BER performance is achieved when signal level spacing for upper level is higher than that of the lower level in order to compensate the signal dependent noise. In addition, we compare optimized system performance in terms of optical received power (ORP), optical signal to noise ratio (OSNR) and chromatic dispersion (CD) tolerance with conventional MSAC method. Improvement of 4.5 dB in ORP and OSNR are observed.