Comparison of chromatic dispersion pre- and post-compensation with Kramers-Kronig receiver

Wenjing Yu; Mingyue Zhu; Jing Zhang; Hao Ying; Shaohua Hu; Kun Qiu

doi:10.1117/12.2522918

14 February 2019 Comparison of chromatic dispersion pre- and post-compensation with Kramers-Kronig receiver

Wenjing Yu, Mingyue Zhu, Jing Zhang, Hao Ying, Shaohua Hu, Kun Qiu

Proceedings Volume 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018); 1104828 (2019) https://doi.org/10.1117/12.2522918
Event: 17th International Conference on Optical Communications and Networks (ICOCN2018), 2018, Zhuhai, China

Abstract

Chromatic dispersion (CD) is one of the main limitations for high speed intensity modulation and direct-detection transmission system. Electrical dispersion compensation is a cheaper and easier way to compensate CD. In this paper, we compare the performance of chromatic dispersion pre- and post-compensation for optical single side-band (SSB) 4-level pulse amplitude modulation (PAM4) signal with Kramers-Kronig (KK) receiver by simulation and experiment. We put the pre-compensation after Hilbert transform at the transmitter side and the CD post-compensation after KK receiver at the receiver side. The results show that CD tolerance of the dual-drivel Mach-Zehnder modulator (DDMZM) based SSB signal is related to the optical modulation index (OMI) of the modulator in CD pre- and post-compensation scenarios. When the optical signal-to-noise ratio (OSNR) is relatively large, CD post-compensation is more sensitive to OMI than precompensation with KK receiver. We also explore the impact of signal peak-to-average power ratio (PAPR) on the precompensation system by simulation.

Citation Download Citation

Wenjing Yu, Mingyue Zhu, Jing Zhang, Hao Ying, Shaohua Hu, and Kun Qiu "Comparison of chromatic dispersion pre- and post-compensation with Kramers-Kronig receiver", Proc. SPIE 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018), 1104828 (14 February 2019); https://doi.org/10.1117/12.2522918

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KEYWORDS

Receivers

Single sideband modulation

Dispersion

Modulation

Signal detection

Digital signal processing

Modulators

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