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224Gb/s Single Carrier Doubly Differential 2ASK-8PSK System without Carrier Recovery

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Abstract

A carrier-recovery-free 224Gb/s dual-polarization doubly differential 16-point constellation (2ASK-8PSK) is experimentally demonstrated for the first time. Utilizing 10-symbol decision feedback in the 2nd differential stage, the penalty with respect to conventional 16QAM is only 4.8dB.

© 2018 The Author(s)

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