Complex Modulation and Differential Coherent Detection of Directly Modulated Lasers

Hua Yang; Liwang Lu; Wei Wang; Xiong Wu; Pan Wang; Alan Pak Tao Lau; Alan Pak Tao Lau; Chao Lu; Chao Lu; Changjian Guo; Changjian Guo

doi:10.1364/OECC.2021.W3A.5

26th Optoelectronics and Communications Conference
OSA Technical Digest (Optica Publishing Group, 2021),
paper W3A.5
•https://doi.org/10.1364/OECC.2021.W3A.5

Complex Modulation and Differential Coherent Detection of Directly Modulated Lasers

Hua Yang, Liwang Lu, Wei Wang, Xiong Wu, Pan Wang, Alan Pak Tao Lau, Chao Lu, and Changjian Guo

Optoelectronics and Communications Conference 2021

Hong Kong China
3–7 July 2021
ISBN: 978-1-943580-92-7

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Modulation and Coding (W3A)

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H. Yang, L. Lu, W. Wang, X. Wu, P. Wang, A. P. T. Lau, C. Lu, and C. Guo, "Complex Modulation and Differential Coherent Detection of Directly Modulated Lasers," in 26th Optoelectronics and Communications Conference, P. Alexander Wai, H. Tam, and C. Yu, eds., OSA Technical Digest (Optica Publishing Group, 2021), paper W3A.5.

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Abstract

We propose and experimentally demonstrate carrier interleaved modulation and differential coherent detection for direct modulation lasers, achieving over 11-dB enhancement in received OSNR at 7% HD-FEC after 74-km SSMF transmission of PAM-4 signals.

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