Coherent Polarization-Division-Multiplexed QPSK Receiver With Fractionally Spaced CMA for PMD Compensation

被引：25

作者：

Kaneda, Noriaki ^{[1
]}

Leven, Andreas ^{[2
]}

机构：

[1] Bell Labs, Murray Hill, NJ 07974 USA

[2] Bell Labs, D-90411 Nurnberg, Germany

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2009年 / 21卷 / 1-4期

关键词：

Coherent detection; constant modulus algorithm (CMA); polarization-mode dispersion (PMD); quadrature phase-shift keying (QPSK); MODE DISPERSION; SYSTEM;

D O I：

10.1109/LPT.2008.2009772

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 digital coherent polarization-division-multiplexed quadrature phase-shift keying receiver with a fractionally spaced constant modulus algorithm (CMA) is implemented in a field-programmable gated array. Real-time measurements at 5 Gb/s demonstrate that polarization-mode dispersion can be effectively compensated with multiple numbers of taps when the received data is two-fold over-sampled. With a four-tap CMA, the I-dB optical signal-to-noise ratio penalty, point extends up to differential group delay of five times effective bit width (inverse of data rate at 5 Gb/s).

引用

页码：203 / 205

页数：3

共 8 条

[1]

HAUNSTEIN HF, 2003, P LEOS 03 VANC CAN J, P17

[2] Digital equalization of chromatic dispersion and polarization mode dispersion [J].