Analysis of Performance for 100 Gbit/s Dual-Polarization QPSK Modulation Format System

Li Li; Guo Xiao-bo; Li Jing

doi:10.1515/joc-2015-0016

Article

Analysis of Performance for 100 Gbit/s Dual-Polarization QPSK Modulation Format System

Li Li , Guo Xiao-bo and Li Jing

Published/Copyright: September 16, 2015

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From the journal Journal of Optical Communications Volume 37 Issue 1

Abstract

This article introduces modulation technology, coherent reception technology, the overall design and other key issues for 100 Gbit/s dual-polarization quadrature phase shift keying (DP-QPSK) modulation. Using the technologies based on digital signal processing (DSP), it realizes the long-range transmissions of 100 Gbit/s optical systems to achieve optical signal dispersion compensation, polarized solution reuse and phase estimation. The effect of this scheme is verified with OptiSystem, and the simulation results indicate, with the help of DSP module for processing of the received signal, that the last constellation is ideal and the data transmission error rate is less than 1.3 e⁻⁴. The scheme is implemented simply and has high reliability, and it also has reference significance for the optimization of coherent optical detection hardware. As they feature in high spectrum efficiency and large dispersion and PMD tolerances, the DP-QPSK modulation can improve the line efficiency, and maximize the spectral efficiency of the dense wavelength division multiplexing systems. The quality of eye diagram is high, which is clean and has decent open degree.

Keywords: optical communication; coherent reception; DP-QPSK; performance optimization; bit error rate (BER)

OCIS codes: 060.0060; 060.1660; 060.2330; 060.4080

Funding statement: Funding: This work was supported by the National Natural Science Foundation of China (U1204613), Key problems in science and technology of Henan Provincial (122102210017) and education department of Henan province science and technology research projects (13B510008).

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Received: 2015-2-19

Accepted: 2015-8-20

Published Online: 2015-9-16

Published in Print: 2016-3-1

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Articles in the same Issue

https://doi.org/10.1515/joc-2015-0016

Keywords for this article

optical communication; coherent reception; DP-QPSK; performance optimization; bit error rate (BER)