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Real-time FPGA-based Coherent Optical Receiver for 1 Gsymbol/s, 64 QAM Transmission
Coherent communications Fiber optics communications
2011/5/25
We demonstrated the first time real-time FPGA-based coherent optical receiver for a 64 QAM transmission. Error free performance (BER < 1x10 -12 ) was achieved under a back-to-back condition and the BE...
120-Gb/s PDM 64-QAM transmission over 1,280 km using multi-staged nonlinear compensation in digital coherent receiver
120-Gb/s PDM 64-QAM transmission multi-staged nonlinear compensation digital coherent receiver
2011/5/21
We succeed in the long-haul (1,280km) transmission of a 120-Gb/s PDM 64-QAM signal. The transmission distance was extended from 800 km to 1,280 km by a multi-stage nonlinear compensation technique tha...
Linewidth-Tolerant,ISI-suppressed 15-Gbit/s 64-QAM Transmission over 120-km SSMF
Linewidth-Tolerant ISI-suppressed Transmission SSMF
2008/7/31
2.5-Gsymbol/s 64-QAM transmission over 120-km standard-SMF was demonstrated by electronic pre-equalization for ISI supression and pilot-carrier aided optical phase-noise cancelling to obtain the BER o...