Opt Express. 2023 Feb 13;31(4):6722-6729. doi: 10.1364/OE.479124.
High-resolution jitter measurement is essential for the next generation of electronic communications and sensor systems. However, most electrical timing jitter measurement equipment has a low resolution because of the limitations of electronic processing accuracy. Meanwhile, photonics-based jitter measurement methods have a higher resolution but cannot measure the widely used electrical signals. This work proposes a potential high-resolution jitter measurement method for electrical signals based on the photonics time stretch technique. The jitter information can be magnified in the optical domain and then measured by electrical equipment. The experimental results demonstrate that the jitter of an electrical pulse is magnified from 59.02 ps to 663.29 ps when the magnification factor is 11.24.
高分辨率抖动测量对于下一代电子通信和传感器系统至关重要。然而，由于电子处理精度的限制，大多数电气定时抖动测量设备的分辨率都较低。同时，基于光子学的抖动测量方法具有更高的分辨率，但无法测量广泛使用的电信号。本工作提出了一种基于光子学时间拉伸技术的电信号潜在高分辨率抖动测量方法。抖动信息可以在光域中放大，然后用电设备进行测量。实验结果表明，当放大倍数为 11.24 时，电脉冲的抖动从 59.02 ps 放大到 663.29 ps。
