Celebrating the 20^ th anniversary of Optics Express, this paper reviews the evolution of
optical fiber communication systems, and through a look at the previous 20 years attempts to …

Modern communication systems rely on efficient quadrature amplitude modulation formats
that encode information on both the amplitude and phase of an electromagnetic carrier …

In recent years, short-reach optical links have attracted much more attention and have come
to constitute a key market segment due to the rapid development of data-center applications …

Systems modulating, transporting, and detecting lightwaves have evolved tremendously in
the past four decades. The first systems, which were relying on intensity modulation with …

To overcome power fading induced by chromatic dispersion in optical fiber communications,
optical field recovery is a promising solution for direct detection short-reach applications …

To cope with the various nonlinear signal distortions in intensity-modulation/direct-detection
transmission systems, a theoretical analysis on the Volterra nonlinear equalizer (VNLE) is …

Conventional optical coherent receivers capture the full electrical field, including amplitude
and phase, of a signal waveform by measuring its interference against a stable continuous …

Insufficient system bandwidth and chromatic dispersion (CD) of fiber are major limitations for
high-speed four-level pulse amplitude modulation (PAM4) direct detection systems. In this …

The Kramers-Kronig (KK) receiver has recently drawn a great deal of attention due to its
capability of retrieving the phase information from the directly-detected intensity waveforms …

An improved weighted decision-feedback equalizer (IWDFE) is adopted and experimentally
demonstrated to mitigate chromatic dispersion (CD) induced power fading for C-band four …