Intensity-modulated / direct-detection (IM/DD) Nyquist pulse-amplitude modulation (PAM) signaling for 100-Gbit/s/λ optical short-reach transmission
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We propose a new high-speed optical IM/DD transmission scheme employing Nyquist-shaped PAM4 and PAM6 signaling with digital signal processing for short-reach applications and experimentally demonstrate its 100-Gbit/s operation over 2-km singe mode fiber at 1.5 μm band.
[1] Kazuro Kikuchi,et al. 16-ary stokes-vector modulation enabling DSP-based direct detection at 100 Gbit/s , 2014, OFC 2014.