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 …

In this paper, we review in detail experimental demonstrations of Kramers–Kronig (KK)
based direct detection systems with high per-carrier interface rates, high spectral …

Traffic management systems capture tremendous video data and leverage advances in
video processing to detect and monitor traffic incidents. The collected data are traditionally …

Coherent detection offers high spectral efficiency and receiver sensitivity, but digital signal
processing (DSP)-based coherent receivers may be prohibitively power hungry for data …

In this paper we discuss the nature of and requirements for data center interconnects. We
then demonstrate a switch-pluggable, 4.5 W, 100 Gbit/s, silicon-photonics-based, PAM4 …

We experimentally demonstrated EML-based IM/DD 4x112. 5-Gbit/s PAM-4 transmission
over 80km SSMF for inter-DCI applications. Thanks to the transmitter-side DSP based on …

Leveraging client optics based on intensity modulation and direct detection for point-to-point
inter-data center interconnect applications is a cost and power efficient solution, but …

We investigate the feasibility of pulse amplitude modulation-N (PAM-N) signal transmission
over a photonics-based cost-effective THz wireless link. A direct detection-based THz …

In this paper, we present a field-trial C-band 72Gbit/s optical on-off keying (OOK) system
over 18.8 km dispersion-uncompensated submarine optical cable in the South China Sea …

This paper proposes a nonlinear equalization technique enabled by long short-term memory
(LSTM) recurrent neural networks. The proposed technique is implemented at the end of …