... Journal of Natural Sciences and Technology, Vol. 30, No. 1 (2014) 58-67 58 The Effects of ASE Noise and the Position of EDFA Amplifier on Multi-Wavelength OCDM-Based Long-Reach Passive Optical ... It consists of the signal -ASE beat noise, the ASE- ASE beat noise (beating between the spectral components of the added amplifier ASE) , the MAI -ASE beat noise and the signal-signal beat noise. ... beat noise. Thus, based on proposed architecture, we analyze the effects of EDFA noise, i.e. ASE noise, on the performance of OCDM-based LR-PON. Other noise and interference such as shot noise, ...