Flexible multi-dimensional modulation method for elastic optical networks

Performance study of optical triangular-shaped pulse generation with full duty cycle

“…Photonic generation of an optical or radio frequency (RF) triangular-shaped waveform has been a topic of interest recently, which can find many applications in the alloptical converter, pulse compression, microwave photonic systems, and high-speed all-optical signal processing and manipulation [1][2][3][4] . Various approaches have been reported to generate an optical triangular-shaped waveform.…”

Decision-free radius-directed Kalman filter for universal polarization demultiplexing of square M-QAM and hybrid QAM signals

“…Rate adaptive transceivers have recently attracted much attention due to their potential for improving overall optical network efficiency under dynamic internet traffic patterns in emerging data center or various cloud applications. The spectral efficiency of the transmitter may be adjusted discretely by configuring quadrature amplitude modulation (QAM) formats or may be tuned continuously with time domain hybrid QAM (TDHQ) schemes [1][2][3] . Therefore, universal digital signal processing (DSP) schemes supporting dynamic modulation formats is gaining more and more attention [4,5] .…”