Use of polarization freedom beyond polarization-division multiplexing to support high-speed and spectral-efficient data transmission

Zhi-Yu Chen; Lian-Shan Yan; Yan Pan; Lin Jiang; An-Lin Yi; Wei Pan; Bin Luo

doi:10.1038/lsa.2016.207

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Use of polarization freedom beyond polarization-division multiplexing to support high-speed and spectral-efficient data transmission

Original Articles

- Use of polarization freedom beyond polarization-division multiplexing to support high-speed and spectral-efficient data transmission
- Light: Science & Applications Vol. 6, Issue 1, (2017)
- Affiliations：
  
  Center for Information Photonics and Communications, School of Information Science and Technology, Southwest Jiaotong University, Chengdu 610031, China
- Author bio：
  
  LS Yan, Email: lsyan@home.swjtu.edu.cn
- Funds：
- DOI：10.1038/lsa.2016.207
  CLC：
- Published：2017-03，
  
  Published Online：25 August 2016，
  
  Received：23 January 2016，
  
  Revised：14 August 2016，
  
  Accepted：23 August 2016
- Accepted：
Scan QR Code
Chen, Z. Y. et al. Use of polarization freedom beyond polarization-division multiplexing to support high-speed and spectral-efficient data transmission. Light: Science & Applications, 6, e16207 (2017).
DOI：

Chen, Z. Y. et al. Use of polarization freedom beyond polarization-division multiplexing to support high-speed and spectral-efficient data transmission. Light: Science & Applications, 6, e16207 (2017). DOI： 10.1038/lsa.2016.207.

摘要

Abstract

Increasing the system capacity and spectral efficiency (SE) per unit bandwidth is one of the ultimate goals for data network designers

especially when using technologies compatible with current embedded fiber infrastructures. Among these

the polarization-division-multiplexing (PDM) scheme

which supports two independent data channels on a single wavelength with orthogonal polarization states

has become a standard one in most state-of-art telecommunication systems. Currently

however

only two polarization states (that is

PDM) can be used

setting a barrier for further SE improvement. Assisted by coherent detection and digital signal processing

we propose and experimentally demonstrate a scheme for pseudo-PDM of four states (PPDM-4) by manipulation of four linearly polarized data channels with the same wavelength. Without any modification of the fiber link

we successfully transmit a 100-Gb s

−1

PPDM-4 differential-phase-shift-keying signal over a 150-km single-mode fiber link. Such a method is expected to open new possibilities to fully explore the use of polarization freedom for capacity and SE improvement over existing fiber systems.

关键词

Keywords

coherent detectionoptical communicationpseudo-polarization-division multiplexingspectral efficiency

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