… In this paper, we report an eight-channel WDM-FSO link based on PDM-16-QAM scheme. …
-capacity WDM-based long-range FSO link by using spectral-efficient PDM-16-QAM scheme, (…

… bandwidth can support ultra-high-speed communication [4-7]. … we adjust the baud rate of
PDM-PS-256QAM signals from 4 … et al., “Spectrally efficient direct detected OFDM transmission …

… the use of a range of spectrally efficient multilevel modulation … dense WDM RoF system is
proposed by incorporating PDM-… and it comes in different variants such as 8-QAM, 16-QAM, 32-…

… optical access networks, wavelength division multiplexing (WDM… and affordable spectrally
efficient advanced modulation formats … The PDM IQ modulator and PDM coherent receiver are …

… high symbol rates and spectrally efficient modulation formats are … For example, WDM
transmission of 72 Gbd polarization … compared to the 16 QAM signal. More specifically, higher …

… orthogonal modulation generation and transmission over 1000 … The proposed modulation
format has been implemented in WDM … Spectrally efficient WDM nyquist pulse-shaped 16-QAM …

… the wavelength division multiplexing transmission of 120 … -modulation (PAM-4) signals
are also produced through three … of probabilistically shaped singlecarrier 506 Gb/s PDM-16QAM …

… -division-multiplexing (PDM) high-order quadrature-amplitude-modulation (QAM) formats.
Our results show that Nyquist 64-QAM, 16-QAM and QPSK WDM signals can be sufficiently …

… and dense wavelengthdivision multiplexing (DWDM). In same … possibility of ultra-high capacity
SDM transmission systems … of 49.3 Tb/s using variable spectral efficiency 16 QAM based …

… FWM has been broadly reported in many transmissions such as WDM and OFDM systems. It
has … Multi-band optical systems to enable ultra-high speed transmissions. In: The European …