The analysis of system performance of WDM/OCDMA-PON based on DQPSK/OOK

This paper mainly studies the combination of quadrature modulation of the phase modulation/amplitude modulation. Phase domain modulation formats mainly study the differential quadrature differential phase shift keying (DQPSK) and amplitude domain modulation format mainly studies the on–off keying (OOK). Through the above analysis, we know orthogonal to modulation technology of OCDMA system solution-PON DQPSK/OOK based on has a large advantage over the ordinary PON system.