Digital PDL Compensation in 3D Stokes Space

被引：46
|
作者：
Muga, Nelson J. [1 ,2 ]
Pinto, Armando Nolasco [1 ,2 ]
机构：
[1] Univ Aveiro, Dept Elect Telecommun & Informat, P-3810193 Aveiro, Portugal
[2] Campus Univ Santiago, Inst Telecomunicacoes, P-3810193 Aveiro, Portugal
来源：
JOURNAL OF LIGHTWAVE TECHNOLOGY | 2013年 / 31卷 / 13期
关键词：
Coherent detection; digital signal processing; fiber-optic communications; polarization demultiplexing; polarization-dependent losses; COHERENT OPTICAL RECEIVERS; POLARIZATION-SWITCHED QPSK; CONSTANT-MODULUS ALGORITHM; EQUALIZATION; TRANSMISSION; MODULATION; SYSTEMS; PMD;
D O I：
10.1109/JLT.2013.2263849
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A Stokes space based technique for digital polarization-dependent losses (PDL) monitoring and compensation is proposed. The channel PDL monitoring is carried out with a resolution of 0.15 dB by computing the mean point of the signal samples represented in the three-dimensional Stokes space. The presented compensation technique is based on rotations and translations of the signal samples in the Stokes space, and provides a PDL compensation up to 2.5 dB. Error vector magnitude results show a gain of about 3 dB (assuming a PDL value equal to 1.5 dB) to a Stokes space based polarization demultiplexing technique without PDL compensation.
引用
收藏
页码：2122 / 2130
页数：9
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