Phase recovery algorithm in coherent homodyne optical systems

R. Z. Ibragimov

doi:10.1117/12.2270076

6 April 2017 Phase recovery algorithm in coherent homodyne optical systems

R. Z. Ibragimov

Proceedings Volume 10342, Optical Technologies for Telecommunications 2016; 103420Z (2017) https://doi.org/10.1117/12.2270076
Event: XIV International Scientific and Technical Conference on Optical Technologies in Telecommunications, 2016, Samara, Russian Federation

Abstract

In paper we present low-complexity feed-forward algorithm for digital signal processing in coherent optical 16QAM systems, employing adaptive filtering for decreasing linewidth phase noise of coherent laser. Simulations show performance that using dual polarization for 16 quadrature-amplitude modulation (QAM) transmission is possible for laser beat linewidths of ΔfT_s = 0.3 ∙ 10^-3 and ΔfT_s = 7.9 ∙ 10^-5 when soft-decision phase estimator is employed.

Citation Download Citation

R. Z. Ibragimov "Phase recovery algorithm in coherent homodyne optical systems", Proc. SPIE 10342, Optical Technologies for Telecommunications 2016, 103420Z (6 April 2017); https://doi.org/10.1117/12.2270076

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