Flexible multidimensional modulation formats based on PM-QPSK constellations for elastic optical net

• 作 者: 何子龙 刘文涛 沈百林 陈雪 高夕晴 施社平 张琦 尚冬冬 吉勇宁 刘英峰
• 机 构: State Key Lab of Information Photonics and Optical Communications,Beijing University of Posts and Te
• 出 处: Chinese Optics Letters
• 发表日期: 2016年04期
• 关键词: QPSK OSNR symbol scenarios transmitter matching keying parity dimensions constel

We demonstrate flexible multidimensional modulation formats, polarization multiplexed A;-symb〇] 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-2SCQPSK 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 A; -symb〇] 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-2SCQPSK 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.