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Higher-order QAM data transmission using a high-coherence hybrid Si/III-V semiconductor laser

机译:使用高相干混合SI / III-V半导体激光器的高阶QAM数据传输

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We experimentally demonstrate the use of a high-coherence hybrid silicon (Si)/III-V semiconductor laser as the light source for a transmitter generating 20 Gbaud 16- and 64-quadrature amplitude modulated (QAM) data signals over an 80 km single-mode fiber (SMF) link. The hybrid. Si/III-V laser has a measured Schawlow-Townes linewidth of similar to 10 kHz, which is achieved by storing modal optical energy in low-loss Si, rather than the relatively lossy III-V materials. We measure a received bit error rate (BER) of 4.1 x 10(-3) when transmitting the 64-QAM data over an 80 km SMF using the hybrid laser. Furthermore, we measure a BER of <1 x 10(-4) with the Viterbi-Viterbi digital carrier phase recovery method when transmitting the 16-QAM data over an 80 km SMF using the hybrid Si/III-V laser. This performance is achieved at power penalties lower than those obtained with an exemplary distributed feedback laser and slightly higher than those with an exemplary narrow-linewidth external cavity laser. (C) 2020 Optical Society of America
机译:我们通过在80km单个上,通过实验证明使用高相干混合硅(Si)/ III-V半导体激光器作为发射器产生20 Gbaud 16-和64正交幅度调制(QAM)数据信号的光源 - 模式光纤(SMF)链路。混合。 Si / III-V激光器具有测量的Scawlow-Towns系列,其类似于10kHz,这是通过在低损耗Si中存储模态光能而不是相对有损的III-V材料来实现的。当使用混合激光器通过80km SMF传输64-QAM数据时,我们测量4.1 x 10(-3)的接收位错误率(BER)。此外,当使用混合SI / III-V激光器在80km SMF通过80km的SMF上传输16-QAM数据时,我们测量<1×10(-4)的BER。该性能在低于使用示例性分布式反馈激光器的功率惩罚,并且略高于具有示例性窄线宽外腔激光器的功率惩罚。 (c)2020美国光学学会

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