Project supported by the Shandong Natural Science Foundation,China (Grant No. ZR2021LLZ006);the National Natural Science Foundation of China (Grant Nos. 61675118 and 12274123);the Taishan Scholars Program of Shandong Province,China (Grant No. ts20190936);the Shandong University of Science and Technology Research Fund,China(Grant No. 2015TDJH102)。
A scheme of optical four-level pulse amplitude modulation(PAM-4) is proposed based on dual-Raman process in Rydberg atoms. A probe field counter-propagates with a dual-Raman field which drives the ground and the excit...
In this Letter, we have proposed a generalized Gaussian probability density function(GGPDF)-based method to estimate the symbol error ratio(SER) for pulse amplitude modulation(PAM-4) in an intensity modulation/d...
National Key Research and Development Program of China(2017YFB0403603)
High-speed multi-user access with high spectral efficiency is one of the key challenges for band-limited visible light communication(VLC) systems. In this paper, we propose a novel scheme for effective multiple-access...