Zilong He, Wentao Liu, Bailin Shen, Xue Chen, Xiqing Gao, Sheping Shi, Qi Zhang, Dongdong Shang, Yongning Ji, Yingfeng Liu. Flexible multidimensional modulation formats based on PM-QPSK constellations for elastic optical networks[J]. Chinese Optics Letters, 2016, 14(4): 040602
- Chinese Optics Letters
- Vol. 14, Issue 4, 040602 (2016)
Fig. 1. (a) PM-kSC-QPSK implementation using the PM-QPSK hardware configuration and (b) joint-decision algorithm.
Fig. 2. Experimental setup for the 500 km PM-kSC-QPSK transmission system at 32 Gbaud. (a) Transmitter, (b) spectrum of the modulated signal, (c) transmission link, and (d) receiver.
Fig. 3. (a) Measured B2B BER for PM-2SC-QPSK, PM-4SC-QPSK, and PM-QPSK at 32 Gbaud (i.e., at the bit rates of 96 Gb/s for PM-2SC-QPSK, 112 Gb/s for PM-4SC-QPSK, and 128 Gb/s for PM-QPSK). (b) Constellations measured back to back at 15.7 dB OSNR. (c) The measured BER after 500 km transmission for PM-QPSK, PM-2SC-QPSK, and PM-4SC-QPSK at 32 Gbaud.
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Table 1. Multidimensional Modulation Formats and Their Characteristics
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