DSP technologies in the Stokes vector receivers for short-reach optical transmission systems

Shota Ishimura; Kosuke Nishimura

doi:10.1117/12.2291417

30 January 2018 DSP technologies in the Stokes vector receivers for short-reach optical transmission systems

Shota Ishimura, Kosuke Nishimura

Proceedings Volume 10560, Metro and Data Center Optical Networks and Short-Reach Links; 1056004 (2018) https://doi.org/10.1117/12.2291417
Event: SPIE OPTO, 2018, San Francisco, California, United States

Abstract

Stokes vector receivers have attracted attention for their ability to enhance spectral efficiency due to the increase in the number of dimensions compared to conventional intensity-modulation and direct-detection (IM-DD) systems. One of the technical advantages of the Stokes receiver is that the original state-of-polarization (SOP) of a transmitted signal can be retrieved with digital signal processing (DSP) even if it is fluctuated during fiber transmission. In this paper, we review DSP technologies for SOP recovery, focusing on the modified constant modulus algorithm (CMA), and the radius directed equalization (RDE) algorithm in the Stokes space. Using computer simulations, we show that these algorithms can track random SOP fluctuations without any penalties.

Conference Presentation

Citation Download Citation

Shota Ishimura and Kosuke Nishimura "DSP technologies in the Stokes vector receivers for short-reach optical transmission systems", Proc. SPIE 10560, Metro and Data Center Optical Networks and Short-Reach Links, 1056004 (30 January 2018); https://doi.org/10.1117/12.2291417

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