This paper reviews the foundations of the Kramers–Kronig (KK) receiver, a recently
proposed scheme designed to reconstruct a complex-valued signal from the measurement …

Optical single-sideband (SSB) transmission technique fills the gap between intensity-
modulation/direct-detection (IM/DD) and digital coherent transmission technologies. It …

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 …

We propose a DSP-free coherent-lite system that requires neither high-speed DSP nor high-
resolution signal converters for deployment inside datacenters over single mode fiber links …

Supporting the ever-increasing data-center-inter-connect traffic in a cost-effective manner is
a great challenge, which requires innovative transmission and digital signal processing …

The Kramers-Kronig (KK) receiver is capable of retrieving the phase information of optical
single-sideband (SSB) signal from the optical intensity when the optical signal satisfies the …

We demonstrate a 222 GBd on-off-keying transmitter in a short-reach intra-datacenter
scenario with direct detection after 120 m of standard single mode fiber. The system …

We present two schemes extending the Kramers-Kronig-receiver to polarization multiplexed
transmission. One of the schemes relies on the Stokes receiver and allows for complex …

Since its early commercial deployment in the late 1980s, optical fiber has evolved to become
the predominant carrier of the globe's communications. Yet, after accommodating the world's …

For short range optical transmissions, the intensity modulation and direct detection (IM/DD)
offers the advantages of low cost and low complexity. In this paper, we will review our recent …