Optical Code Division Multiplexing technique for ultra high speed NGA asymmetric PON system

First time hybrid OTDM and OCDM technology is presented here to realize asymmetric 160Gbps PON System. To validate the basic principle, we experimentally demonstrated 2 channels OCDM signals with 15chip (~1.6ps/chip) pseudo random type optical encoder by allocating encoded chip pulses of different channels with 0.1ps accuracy.