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

Light, Science & Applications
Zhiyu ChenBin Luo

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.

References

Jun 1, 2004·Physical Review Letters·T BrixnerT Baumert
Apr 1, 2005·Nature·Tobias BrixnerGraham R Fleming
Mar 16, 2007·Nature·Martin AeschlimannFelix Steeb
Jul 17, 2000·Optics Express·K Youngworth, T Brown
Aug 20, 2010·Optics Express·Bogdan SzafraniecTodd Marshall
Oct 23, 2012·Science·Xinlun CaiSiyuan Yu
Jul 3, 2013·Science·Nenad BozinovicSiddharth Ramachandran
Oct 29, 2013·Physical Review Letters·Mathew D WilliamsDavid L Andrews
Dec 30, 2014·The Journal of Hand Surgery, European Volume·M M Al-Qattan
Jul 21, 2015·Optics Express·Ricard BoadaIdelfonso Tafur Monroy
Jul 21, 2015·Optics Express·Shota Ishimura, Kazuro Kikuchi

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