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首页> 外文期刊>Journal of Lightwave Technology >Comparison of Transmission Performance of 40-Gb/s Optical Duobinary and DCS-RZ Signals Using 10- and 40-Gb/s $hbox{LiNbO}_{3}$ Mach–Zehnder Modulators
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Comparison of Transmission Performance of 40-Gb/s Optical Duobinary and DCS-RZ Signals Using 10- and 40-Gb/s $hbox{LiNbO}_{3}$ Mach–Zehnder Modulators

机译:使用10 Gb和40 Gb / s $ hbox {LiNbO} _ {3} $ Mach–Zehnder调制器对40 Gb / s光学双二进制和DCS-RZ信号的传输性能进行比较

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摘要

We investigated a cost-effective method using 10-Gb/s LiNbO3 Mach-Zehnder modulators (MZMs) for transmitting 40-Gb/s duobinary nonreturn-to-zero (NRZ) and duobinary carrier-suppressed return-to-zero (DCS-RZ) signals. The transmission performance of the signals was investigated. The optimum bandwidths of low-pass filters in transmitters using 10- and 40-Gb/s LiNbO3 MZMs were also investigated. The calculated transmission performance of the transmitter using 10-Gb/s LiNbO3 MZMs was compared to that using 40-Gb/s LiNbO3 MZMs. The effect of the bias offset in the transmitters was investigated. Compared to duobinary-NRZ and DCS-RZ signals generated by a transmitter using 40-Gb/s LiNbO3 MZMs, those generated by using 10-Gb/s LiNbO3 MZMs can be transmitted with 1-dB power penalty over 480-km transmission
机译:我们研究了一种经济有效的方法,该方法使用10 Gb / s LiNbO3 Mach-Zehnder调制器(MZM)传输40 Gb / s双二进制不归零(NRZ)和双二进制载波抑制的归零(DCS- RZ)信号。研究了信号的传输性能。还研究了使用10 Gb / s和40 Gb / s LiNbO3 MZM的发射机中低通滤波器的最佳带宽。将使用10 Gb / s LiNbO3 MZM的发送器的计算传输性能与使用40 Gb / s LiNbO3 MZM的计算的发送性能进行比较。研究了偏置偏置在发射机中的影响。与使用40 Gb / s LiNbO3 MZM的发射机生成的双二进制NRZ和DCS-RZ信号相比,使用10 Gb / s LiNbO3 MZM生成的双二进制NRZ和DCS-RZ信号在480 km传输中的传输功率为1-dB

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