Modulation format identification based on logistics regression for high-speed coherent optical communication system

Manli Huang; Hongna Zhu; Hengan Zhou; Hao Sui; Le Cheng; Guangming Li

doi:10.1117/12.2606687

1 November 2021 Modulation format identification based on logistics regression for high-speed coherent optical communication system

Manli Huang, Hongna Zhu, Hengan Zhou, Hao Sui, Le Cheng, Guangming Li

Author Affiliations +

Proceedings Volume 12057, Twelfth International Conference on Information Optics and Photonics; 120573T (2021) https://doi.org/10.1117/12.2606687
Event: Twelfth International Conference on Information Optics and Photonics, 2021, Xi'an, China

Abstract

A modulation format identification (MFI) method based on the nonlinear power transformation via logistics regression is adopted for coherent optical receives systems. The amplitude variance, fourth power transformation and fast Fourier transform of input signals are utilized for special features extraction in our work. Five typical optical modulation formats (i.e.,16/32/64QAM and Q/8PSK) with the transmission rate of 28 GBaud are numerically simulated to demonstrate the feasibility. The simulation results show that our method has great performance even under low optical signal noise ratio (OSNR). Compared with the MFI algorithm based on Stokes space and asynchronous delay tapped sampling, our MFI algorithm requires less time to achieve similar performance of optical receive systems. Especially, this method exhibits tolerances to the laser linewidth and nonlinearity.

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Manli Huang, Hongna Zhu, Hengan Zhou, Hao Sui, Le Cheng, and Guangming Li "Modulation format identification based on logistics regression for high-speed coherent optical communication system", Proc. SPIE 12057, Twelfth International Conference on Information Optics and Photonics, 120573T (1 November 2021); https://doi.org/10.1117/12.2606687

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KEYWORDS

Modulation

Digital signal processing

Optical communications

Telecommunications

Chromium

Fiber lasers

Signal to noise ratio

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