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 (similar to 1.6ps/chip) pseudo random type optical encoder by allocating encoded chip pulses of different channels with 0.1 ps accuracy. (C) 2009 Optical Society of America