Performance analysis of WDM PON systems using PIN and APD photodiodes

In this paper we study the quality (Q) factor used by the receivers of APD and PIN photodiodes in wavelength division multiplexing (WDM) system with 32 number of users and compare the efficiency of the bit error rate (BER). The research is conducted using avalanche photodiode (APD) P-insulator-N and PIN photodiodes receivers of different wavelengths. Interpretation and description of the Optisystem's simulation results through the optical high debit communication system, optical fibre of different lengths, bit rate, continuous wave (CW) laser power and number of users, chosen to evaluate the APD and PIN photodiodes performances in function of Q-factor and BER in order to provide new perspectives for the future transmission. The simulation values show that the performance of the APD diode and the Q and BER factor obtained from APD is better than the performance of the PIN, and could be expected because APD is more sensitive than PIN.