supported by National Natural Science Foundation of China(Grant Nos.61821001,62371056);Fund of State Key Laboratory of Information Photonics and Optical Communication BUPT(Grant No.IPOC2021ZT18).
In this paper,we investigated the effects of error-feedback noise shaping(EFNS)on a lowresolution Kramers-Kronig(KK)detection system for the first time.Both 16-ary quadrature amplitude modulation(16-QAM)and 64-ary qua...
National Key Research and Development Program of China(Grant No.2019YFB1803905);National Natural Science Foundation of China(Grant Nos.61871030,61671053);Fundamental Research Funds for the Central Universities(Grant No.FRF-MP-19-009);State Key Laboratory of Advanced Optical Communication Systems Networks,China,Open Fund of IPOC(BUPT)(Grant No.IPOC2018B009);Foundation of Beijing Engineering and Technology Center for Convergence Networks and Ubiquitous Services.
In this paper,the theoretical bit error rate(BER)of N-level pulse amplitude modulation(PAMN)and M-ary quadrature amplitude modulation(M-QAM)have been studied and compared under different scenarios,including(i)PAM with...
supported by the National Basic Research Program of China(Grant Nos.2013CB922002 and 2010CB922904);the National Natural Science Foundation of China(Grant Nos.11274376 and 61308011);the Natural Science Foundation of Hebei Province,China(Grant No.A2015205161)
We measure the absorption and dispersion in a Doppler-broadened A-type three level system by resonant stimulated Raman spectroscopy with homodyne detection. Through studying the dressed state energies of the system, i...
Cadmium zinc lead sulfide [Cd0.8(Zn1-x7,Pbx)0.2S] nano-powders were prepared by an improved coprecipitation method. The effect of Pb2+ concentration at 500℃ on the phase and crystalline structure of the Cd0.8(Zn1...