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We investigate long-haul WDM transmission using 538Gb/s PDM-64QAM single-carrier frequency-division-multiplexing (SC-FDM) signal with pilot tone. Assuming 20% FEC overhead, the longest transmission distance of 1200km at the spectral efficiency of 8.96b/s/Hz is achieved.
Ultrabroadband visible noncollinear optical parametric amplification (NOPA) was achieved in a biaxial crystal. The amplified pulse has a spectral width of 200 nm with energy of 0.21 uJ in a 1 mm thick LBO crystal.
100-Gb/s-class high-speed transmission technologies are essential to realize future 100 G Ethernet transmission over wide area networks. Optical OFDM (Orthogonal Frequency Division Multiplexing) is promising for high-speed transmission because of its narrow bandwidth and superior tolerance to chromatic dispersion and polarization mode dispersion. In this paper, we show numerically that the nonlinear...
Summary form only given. Molecular J-aggregates have attracted much attention because of the ultrafast and large optical nonlinearity caused by the excitonic resonance.
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