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All-optical vector network analyzer with 500 GHz bandwidth and 76 MHz frequency resolution

机译:全光学矢量网络分析仪,具有500 GHz带宽和76 MHz频率分辨率

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We demonstrate an all-optical time-domain vector network analyzer with a frequency resolution of 76 MHz and a bandwidth exceeding 500 GHz in a single measurement configuration. Electrical reflection coefficients are obtained from measurements of ultra-short voltage pulses at different positions on a coplanar waveguide using femtosecond laser pulses and an asynchronous optical sampling technique. In contrast to our previous synchronous sampling experiments, the new technique leads to a significant improvement of the frequency resolution and potentially more accurate measurements being important for future calibration tasks.
机译:我们展示了一种全光时域矢量网络分析器,其频率分辨率为76 MHz,并且在单个测量配置中具有超过500GHz的带宽。使用飞秒激光脉冲和异步光学采样技术从共面波导上的不同位置的超短电压脉冲的测量获得电反射系数。与我们之前的同步采样实验相比,新技术导致频率分辨率的显着提高,并且可能更准确的测量对于未来的校准任务很重要。

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