Abstract
We experimentally demonstrate 101.7-Tb/s transmission over 3 × 55 km
spans of standard single-mode fiber (SSMF) at a net spectral efficiency of 11 b/s/Hz. A
total of 370 dense wavelength-division multiplexed (DWDM) channels spanning the optical
C- and L-bands spaced at 25 GHz were used. Each 25-GHz channel were subdivided into four
subbands, with each subband carrying a 73.5-Gb/s orthogonal frequency-division
multiplexed (OFDM) signal modulated with polarization-division-multiplexing (PDM)
128-ary quadrature amplitude modulation (QAM) at each modulated subcarrier. This
experiment was enabled by digital signal processing (DSP) pre-equalization of
transmitter impairments, all Raman amplification, heterodyne coherent detection, and DSP
postequalization of the channel and receiver impairments, including pilot-based phase
noise compensation.
© 2012 IEEE
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