Sub-rate sampling in 100 Gb/s coherent optical receivers

  title={Sub-rate sampling in 100 Gb/s coherent optical receivers},
  author={Christian Malouin and Bo Zhang and Andy Wagner and Sunil Khatana and Edem Ibragimov and Hong Jiang and Ted Schmidt},
  journal={2010 Conference on Optical Fiber Communication (OFC/NFOEC), collocated National Fiber Optic Engineers Conference},
We investigate the feasibility of ADC sampling rate below 2x versus optical/electrical bandwidths in 100 G-PM-QPSK coherent receivers. We find <0.5 dB penalty for rates down to 5/4x even for dispersion as high as 24,000 ps/nm. 


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