Title :
OFDM Based Superchannel Transmission Technology
Author :
Chandrasekhar, S. ; Liu, Xiang
Author_Institution :
Bell Labs., Alcatel-Lucent, Holmdel, NJ, USA
Abstract :
This paper reviews recent advances in the generation, detection and transmission of orthogonal-frequency-division-multiplexing (OFDM) based superchannels, enabled by efficient and powerful digital signal processors. The use of OFDM to form a superchannel can be (1) at the modulation stage by naturally realizing a square-like signal spectral shape to allow close packing of multiple modulated signals, and/or (2) at the optical multiplexing stage by seamlessly multiplexing these modulated signals. This paper reviews recent advances in this field. Several OFDM-based superchannel architectures are described and compared.
Keywords :
OFDM modulation; digital signal processing chips; optical communication equipment; optical modulation; wavelength division multiplexing; OFDM; digital signal processor; multiple modulated signal; optical multiplexing stage; orthogonal frequency division multiplexing; square like signal spectral shape; superchannel transmission technology; Coherence; OFDM; Optical transmitters; Wavelength division multiplexing; Coherent optical orthogonal frequency-division multiplexing (CO-OFDM); superchannel; wavelength-division multiplexing (WDM);
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2012.2210861
