Investigation of electronic aperture jitter effect in channel-interleaved photonic analog-to-digital converter

作者：Guang Yang, Weiwen Zou *, Lei Yu, Na Qian, and Jianping Chen
摘要：The electronic aperture jitter effect originating from the electronic digitization is investigated in the channel-interleaved photonic analog-to-digital converter (PADC) system. The influence of the electronic aperture jitter to the effective number of bits (ENOB) of the PADC system is extracted and evaluated. According to the theoretical analysis, the electronic aperture jitter can be significantly suppressed by the channel-interleaving scheme. In the experiment, the effect of electronic aperture jitter is measured under different optical-electronic conversion (OEC) bandwidths and channel numbers. It is eventually found that the condition of the OEC bandwidth equaling to the Nyquist frequency of one single channel is critical to optimize the electronic aperture jitter and ENOB.
出版源：Optics Express, Vol. 27, Issue 6, pp. 9205-9214, 2019.