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A 50-GHz-bandwidth InP-HBT analog-MUX module for high-symbol-rate optical communications systems

机译:用于高符号率光通信系统的50 GHz带宽InP-HBT模拟MUX模块

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An ultra-broadband 2:1 analog-multiplexer (A-MUX) module has been developed for optical communications systems with a high symbol rate. The A-MUX IC was designed and fabricated using in-house InP HBTs, which have a peak ft and fmax of 290 and 320 GHz, respectively. The A-MUX module has a through bandwidth of over 50 GHz and operates at a clock rate of up to 50 GHz, leading to 100-GS/s operation. Its power consumption is as small as 0.5 W. In addition, we devised a novel method to double the bandwidth of DACs using the A-MUX. We succeeded in generating an 80-Gbaud (160-Gb/s) Nyquist PAM4 signal based on two 20-GHz-bandwidth sub-DACs and this A-MUX.
机译:已经为具有高符号率的光通信系统开发了超宽带2:1模拟多路复用器(A-MUX)模块。 A-MUX IC是使用内部InP HBT设计和制造的,它们的峰值ft和fmax分别为290 GHz和320 GHz。 A-MUX模块的直通带宽超过50 GHz,并以高达50 GHz的时钟速率运行,从而实现100-GS / s的运行速度。它的功耗仅为0.5W。此外,我们设计了一种新颖的方法,可以使用A-MUX将DAC的带宽提高一倍。我们成功地基于两个20 GHz带宽子DAC和此A-MUX生成了80 Gbaud(160 Gb / s)的Nyquist PAM4信号。

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