Rapid conversion between polarization states in the three-wave-plate PSG by TS algorithm

Huang Chunhui; Wei Yuan

A three-plate-type polarization state generator (PSG) was designed and the transformation of Stokes parameters was derived according to the structure characteristics of PSG. Based on the principle of Tabu Search (referred to as TS) algorithm, a control algorithm was proposed which was able to not only achieve the rapid transformation between the polarization states but also reduce the bias-voltage across the crystal. The simulation results show that, by using this control algorithm, the PSG can transform the linear polarization into arbitrary polarization and the precision can arrive to 0.07%. If the Stokes parameter S2 and S3 were restricted to the specific region on the Poincare sphere, the desired polarization state was generated by this control algorithm and the control voltage amplitude was ensured within 120 V. Last, the experimental results show that,this control algorithm could satisfy the requirement of encoding in continuous variables coherent optical communication of single beam.

1. College of Physics and Information Engineering,Fuzhou University,Fuzhou 350108,China

Received Date: 2014-05-07

Rev Recd Date: 2014-06-13

Publish Date: 2015-01-25

Key words:

PSG /
Stokes parameters /
continuous variables coherent optical communication /
TS algorithm

Abstract: A three-plate-type polarization state generator (PSG) was designed and the transformation of Stokes parameters was derived according to the structure characteristics of PSG. Based on the principle of Tabu Search (referred to as TS) algorithm, a control algorithm was proposed which was able to not only achieve the rapid transformation between the polarization states but also reduce the bias-voltage across the crystal. The simulation results show that, by using this control algorithm, the PSG can transform the linear polarization into arbitrary polarization and the precision can arrive to 0.07%. If the Stokes parameter S2 and S3 were restricted to the specific region on the Poincare sphere, the desired polarization state was generated by this control algorithm and the control voltage amplitude was ensured within 120 V. Last, the experimental results show that,this control algorithm could satisfy the requirement of encoding in continuous variables coherent optical communication of single beam.

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Reference (25)

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Rapid conversion between polarization states in the three-wave-plate PSG by TS algorithm

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