401 km unrepeatered transmission of dual-carrier 400 Gb/s PDM-16QAM mixed with 100 Gb/s channels
22 September 2013
We present the unrepeatered transmission of a dual carrier 400 Gb/s PDM-16QAM channel over 401 km, mixed with 100 Gb/s PDM-QPSK channels. We show that pre-emphasis of the 400 Gb/s channel results in equalized channel margins at the link output.