Journal
OPTICS COMMUNICATIONS
Volume 480, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.optcom.2020.126481
Keywords
Coherent optical communications; Modulation format identification (MFI); Phase statistics; Stokes space
Categories
Funding
- National Key R&D Program of China [2019YFB2203202]
- Science and Technology Program of Guangzhou [2019050001]
- Science and Technology Planning Project of Guangdong Province, China [2019A050510039]
- Natural Science Foundation (NSF) of Guangdong Province [2018A0303130117]
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In this work, a high-performance, low-complexity modulation format identification (MFI) technique is proposed based on phase statistics in Stokes space. Numerical simulations and long-haul experiments validate the proposed MFI scheme, successfully identifying various modulation formats with excellent recognition performance and low computational complexity compared to existing methods.
In this work, a high-performance, low-complexity modulation format identification (MFI) technique is proposed and experimentally demonstrated for coherent optical receivers using features extracted from phase statistics in Stokes space. Numerical simulations as well as long-haul experiments are carried out to validate the proposed MFI scheme. Successful identification is demonstrated among polarization-multiplexed (PM) QPSK, 8PSK, 8QAM, 16QAM, 32QAM and 64QAM signals. Compared with existing modulation identification schemes, the proposed MFI method has an excellent recognition performance with a low computational complexity.
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