OFDM–WDM Architecture with Extended Reach and 1100 Split Ratio for Next Generation Passive Optical Networks

A  Sangeetha; B  Ram Kumar and Srinivasa Rao

doi:10.17485/ijst/2015/v8iS7/62236

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OFDM–WDM Architecture with Extended Reach and 1100 Split Ratio for Next Generation Passive Optical Networks

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Indian Journal of Science and Technology

DOI: 10.17485/ijst/2015/v8iS7/62236

Year: 2015, Volume: 8, Issue: Supplementary 7, Pages: 1-5

Original Article

OFDM–WDM Architecture with Extended Reach and 1100 Split Ratio for Next Generation Passive Optical Networks

A. Sangeetha^*, B. Ram Kumar and Srinivasa Rao

School of Electronics and Communication Engineering, VIT University, Vellore 632014, Tamil Nadu, India; [email protected], [email protected], [email protected]

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

In this paper, we investigate OFDM-WDM-PON as an effective method for achieving high data rates in which OFDM is used as key element to combat dispersion. Large guard band intervals between adjacent OFDM symbols accommodate the distortion introduced by chromatic dispersion leading to reduced ISI. The system design involves the realization of FTTH by integrating OFDM, WDM and PON. OFDM also aids in improving receiver sensitivity. An aggregate of 40 Gbps, Direct detection OFDM-WDM-PON is designed and analyzed. Dispersion compensation techniques are used to achieve a bit error rate in the order of 10-8 and a split ratio of 1100 is achieved.
Keywords: OFDM, PON, WDM