Sliding window aided phase noise suppression method for coherent Nyquist-WDM-PON

Zhaopeng Xu; Zhongwei Tan; Chuanchuan Yang

doi:10.1109/LPT.2016.2585594

Sliding window aided phase noise suppression method for coherent Nyquist-WDM-PON

Zhaopeng Xu^*, Zhongwei Tan, Chuanchuan Yang

^*Corresponding author for this work

Peking University

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Digital coherent Nyquist wavelength division multiplexed passive optical network (Nyquist-WDM-PON), which guarantees very high spectrum efficiency by Nyquist pulse shaping, is a strong candidate for future access PONs. In order to match the low-cost target, the cheap large-linewidth lasers are chosen as the optical source in NG-PON2. However, the induced phase noise by the lasers can seriously cut down the system performance. In this letter, we propose a sliding window aided method to suppress the effect caused by phase noise and introduce it into a typical coherent Nyquist-WDM-PON. With the help of our proposed method, the demand for laser linewidth can be reduced significantly, which justifies the extensive application of cost-effective coherent Nyquist-WDM-PON in the future.

Original language	English
Article number	7501483
Pages (from-to)	2229-2232
Number of pages	4
Journal	IEEE Photonics Technology Letters
Volume	28
Issue number	20
DOIs	https://doi.org/10.1109/LPT.2016.2585594
Publication status	Published - 15 Oct 2016
Externally published	Yes

Keywords

Nyquist shaping
Optical communication
passive optical network (PON)
phase noise suppression

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10.1109/LPT.2016.2585594

Cite this

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title = "Sliding window aided phase noise suppression method for coherent Nyquist-WDM-PON",

abstract = "Digital coherent Nyquist wavelength division multiplexed passive optical network (Nyquist-WDM-PON), which guarantees very high spectrum efficiency by Nyquist pulse shaping, is a strong candidate for future access PONs. In order to match the low-cost target, the cheap large-linewidth lasers are chosen as the optical source in NG-PON2. However, the induced phase noise by the lasers can seriously cut down the system performance. In this letter, we propose a sliding window aided method to suppress the effect caused by phase noise and introduce it into a typical coherent Nyquist-WDM-PON. With the help of our proposed method, the demand for laser linewidth can be reduced significantly, which justifies the extensive application of cost-effective coherent Nyquist-WDM-PON in the future.",

keywords = "Nyquist shaping, Optical communication, passive optical network (PON), phase noise suppression",

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AU - Tan, Zhongwei

AU - Yang, Chuanchuan

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AB - Digital coherent Nyquist wavelength division multiplexed passive optical network (Nyquist-WDM-PON), which guarantees very high spectrum efficiency by Nyquist pulse shaping, is a strong candidate for future access PONs. In order to match the low-cost target, the cheap large-linewidth lasers are chosen as the optical source in NG-PON2. However, the induced phase noise by the lasers can seriously cut down the system performance. In this letter, we propose a sliding window aided method to suppress the effect caused by phase noise and introduce it into a typical coherent Nyquist-WDM-PON. With the help of our proposed method, the demand for laser linewidth can be reduced significantly, which justifies the extensive application of cost-effective coherent Nyquist-WDM-PON in the future.

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Sliding window aided phase noise suppression method for coherent Nyquist-WDM-PON

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