Open AccessSignal-carrier interleaved optical OFDM for direct detection optical communication
Author(s) -
Xi Chen,
Di Che,
An Liu,
Jiayuan He,
William Shieh
Publication year - 2013
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.032501
Subject(s) - orthogonal frequency division multiplexing , signal (programming language) , optics , transmission (telecommunications) , transmitter , sensitivity (control systems) , quadrature amplitude modulation , optical communication , optical power , signal to noise ratio (imaging) , optical communications repeater , detection theory , optical carrier transmission rates , optical fiber , electronic engineering , computer science , telecommunications , physics , bit error rate , multi mode optical fiber , radio over fiber , optical attenuator , channel (broadcasting) , detector , engineering , laser , programming language
We propose signal-carrier interleaved (SCI) optical OFDM for direct detected transmission systems. Such a scheme can be considered as a variation of self-coherent detection where the carrier and signal are supplied at the transmitter and extracted at the receiver for coherent-like detection. This provides high OSNR sensitivity while maintaining very low carrier-to-signal power ratio (CSR). Our experiment results show that with 0 dB CSR, 43.2 Gb/s 16 QAM OFDM signal can be successfully delivered over 80 km standard single mode fiber (SSMF) with 24 dB OSNR requirements at 7% FEC limit.