Abstract
Current optical coherent transponders technology is driving data rates towards 1 Tb/s/λ and beyond. This trend requires both high-performance coded modulation schemes and efficient implementation of the forward-error-correction (FEC) decoder. A possible solution to this problem is combining advanced multidimensional modulation formats with low-complexity hybrid HD/SD FEC decoders. Following this rationale, in this paper we combine two recently introduced coded modulation techniques: the geometrically-shaped 4D-64 polarization ring-switched and the soft-aided bit-marking-scaled reliability decoder. This joint scheme enabled us to experimentally demonstrate the transmission of 11×218 Gbit/s channels over transatlantic distances at 5.2 bit/4D-sym. Furthermore, a 30% reach increase is demonstrated over PM-8QAM and conventional HD-FEC decoding for product codes.
Original language | English |
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Article number | 9096398 |
Pages (from-to) | 827-830 |
Number of pages | 4 |
Journal | IEEE Photonics Technology Letters |
Volume | 32 |
Issue number | 13 |
Early online date | 19 May 2020 |
DOIs | |
Publication status | Published - 1 Jul 2020 |
Keywords
- Forward error correction~(FEC)
- optical fiber communication
- product codes (PCs)