摘要
We demonstrate flexible multidimensional modulation formats, polarization multiplexed k-symbol check quad- rature phase shift keying （PM-kSC-QPSK）, based on PM-QPSK constellations for elastic optical networks. The experimental results show a significant optical signal noise ratio （OSNR） tolerance improvement for PM-2SC- QPSK and PM-4SC-QPSK over PM-QPSK in both back-to-back and 500 km transmission scenarios at the expense of spectral efficiency reduction. This flexible modulation method can be used ＇in elastic optical networks to provide a trade-off between the spectral efficiency and OSNR tolerance.
We demonstrate flexible multidimensional modulation formats, polarization multiplexed k-symbol check quad- rature phase shift keying （PM-kSC-QPSK）, based on PM-QPSK constellations for elastic optical networks. The experimental results show a significant optical signal noise ratio （OSNR） tolerance improvement for PM-2SC- QPSK and PM-4SC-QPSK over PM-QPSK in both back-to-back and 500 km transmission scenarios at the expense of spectral efficiency reduction. This flexible modulation method can be used ＇in elastic optical networks to provide a trade-off between the spectral efficiency and OSNR tolerance.
基金
supported by the National Natural Science Foundation of China(No.61571061)
the Fund of State Key Laboratory of Information Photonics and Optical Communications(Beijing University of Posts and Telecommunications),China
