A Novel Method of Estimating Link Power Budget using Dynamic Bandwidth Allocation Scheme for a 10 Gbit/s GPON Architecture

Optical access or Fiber-To-The-Home (FTTH), has long been considered a final solution to the problem of upgrading the current bottlenecked access to the one capable of delivering future broadband, integrated services. Passive Optical Network (PON) is the most promising architecture for fiber based access network. A complete simulation study of the PON is necessary for any communication channel for the practical implementation. In this paper, we proposed a link power budget estimation of for a 10 Gbit/s GPON architecture using an efficient dynamic bandwidth allocation scheme. We have analyzed the behavior various fiber parameters like fiber attenuation loss, pulse dispersion loss, dispersion limit, tunabiltity of wavelength and bandwidth-distance product with respect to power margin. We have considered NRZ coded by MZI modulator using DFB laser source as per ITU G.694 1100 GHz Grid of C-band wavelength 193.30 THz (1550.92 nm) with six stage 1x2 splitter at remote node (equal to 64 ONUs). We have also studied the power penalty requirements at OLT even though changing laser source power from -7.5 to 15 dBm for the GPON architecture.