Hitless Rate Switching for Dynamically Reconfigurable Optical Systems

被引：6

作者：

Rozental, Valery N. ^{[1
,2
]}

Mello, Darli A. A. ^{[3
]}

机构：

[1] Univ Brasilia UnB, Dept Elect Engn, BR-70910900 Brasilia, DF, Brazil

[2] Ctr Res & Dev Telecommun CPqD, BR-13086902 Campinas, SP, Brazil

[3] Univ Campinas UNICAMP, Sch Elect & Comp Engn, BR-13083970 Campinas, SP, Brazil

来源：

IEEE PHOTONICS JOURNAL | 2015年 / 7卷 / 02期

关键词：

Coherent optical communications; adaptive transponders; power-efficient transmission; DIGITAL-FILTERS; COMPENSATION; NETWORKS;

D O I：

10.1109/JPHOT.2015.2419226

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：

We propose a set of techniques to enable hitless rate switching for reconfigurable optical systems and validate, by computer simulations, their applicability to NRZ, RZ, and Nyquist pulse shapes. The polarization-multiplexed quadrature phase-shift keying (PM-QPSK) and 16 quadrature amplitude modulation (16QAM) modulation formats are investigated. Error transients that appear during lower-to-higher rate switching are avoided by sufficiently long equalizer training periods. The robustness of the proposed scheme to polarization mode dispersion (PMD) and signal phase noise is also demonstrated.

引用

页数：9

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