Open AccessOptical beat interference noise reduction by using out-of-band RF clipping tone signal in remotely fed OFDMA-PON link
Author(s) -
Sang Min Jung,
Sejung Yang,
Kyoung-Hak Mun,
Sang Kook Han
Publication year - 2014
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.018246
Subject(s) - beat (acoustics) , telecommunications link , orthogonal frequency division multiple access , frequency division multiple access , computer science , optics , electronic engineering , telecommunications , orthogonal frequency division multiplexing , physics , engineering , channel (broadcasting)
A novel technique for mitigating the optical beat interference (OBI) noise in an optical orthogonal frequency division multiple access passive optical network (OFDMA-PON) uplink transmission is presented. By using an out of signal band RF clipping tone to the optical seed carrier, the OBI noise has been reduced and the resulting throughput and spectral efficiency has been improved. As an experimental verification, we demonstrate that the spectral efficiency of 23 km and 50 km have been doubled in the OFDMA-PON uplink transmission.