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首页> 外文期刊>Optical and quantum electronics >Design and evaluation of 2.3 Tb/s (23 ch.×100 Gb/s)multi-carrier WDM optical transmission systems
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Design and evaluation of 2.3 Tb/s (23 ch.×100 Gb/s)multi-carrier WDM optical transmission systems

机译：2.3 TB / S（23 CH.×100GB / s）多载波WDM光传输系统的设计和评估

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摘要

Multilevel phase modulation formats with coherent detection enable a new generation of high speed optical transport platform. We demonstrate 23×100 Gbps (2.3 Tb/s) WDM Optical systems employing multicarrier generation concept. Three lasers are used to generate 23 sub-carriers using multicarrier generator at transmitter section. Each sub-carrier transmits at a transmission rate of 100 Gbps using polarization division multiplexed quadrature phase shift keying (PDM-QPSK) modulation format with spacing of 25 GHz between sub carriers. The analysis is carried out for 23×100 Gb/s (2.3 Tb/s) PDM-QPSK WDM optical systems with ultra large area fiber (ULAF), standard single mode fiber (SSMF) and large effective area fiber (LEAF) at transmission reach from 600 to 5000 km. Coherent detection with DSP is used for all the systems at receiving end. Systems are verified with parameters like symbol error rate, error vector magnitude (EVM) and Q-factor using analytical and simulation results. Improvement of 1.66 dB to 3.21 dB and 2.08 dB to 4.63 dB is noted in Q-factor for system with ULAF in comparison with system using SSMF and LEAF respectively over 600 km to 5000 km transmission reach. EVM values are found 2.24% to 2.68% and 2.68% to 12.43% lower in system with ULAF than system with SSMF and LEAF respectively. Log of estimated symbol error is observed less for system with ULAF than systems with SSMF and LEAF fibers, respectively, at transmission distance of 5000 km. The results clearly show that WDM optical system with ULAF fiber gives better performance.
机译：具有相干检测的多级相位调制格式使得能够新一代高速光传输平台。我们证明23×100 Gbps的（2.3铽/ S）采用多载波生成概念WDM光学系统。三个激光器用于在发射器部分使用多载波发生器生成23个子载波。每个子载波使用偏振分频多路复用正交相移键控（PDM-QPSK）调制格式以100Gbps的传输速率发送，并且子载波之间的间隔为25GHz。分析用于23×100 GB / s（2.3 TB / s）PDM-QPSK WDM光学系统，具有超大区域光纤（ULAF），标准单模光纤（SSMF）和变速器大型有效面积纤维（叶）从600到5000公里到达。使用DSP的相干检测用于接收端的所有系统。使用分析和仿真结果，使用像符号错误率，误差矢量幅度（EVM）和Q系数等参数进行验证。在使用SSMF和叶子分别超过600 km到5000公里传输达到的系统的情况下，使用ULAF的系统进行了1.66 dB至3.21 dB和2.08 dB至4.63 dB的提高。从SMF和叶子的系统分别发现EVM值2.68％至12.43％和2.68％至12.43％。对于ULAF的系统分别观察到估计符号误差的日志，与SSMF和叶光纤维的系统分别在5000公里处分别具有SSMF和叶光纤维。结果清楚地表明，具有ULAF光纤的WDM光学系统具有更好的性能。

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