Abstract
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 efficiencies, and ∼100-km reach. Two realizations of KK-based receivers are summarized, including single-polarization and dual-polarization versions. Critical aspects of the KK receiver such as the carrier-to-signal power ratio and receiver bandwidth limitations are discussed. We show 220-Gb/s single-diode detection and 4 × 240-Gb/s dual polarization (dual-diode) detection in a WDM system at 5.3 bits/s/Hz spectral efficiency.
| Original language | English |
|---|---|
| Article number | 8274918 |
| Pages (from-to) | 79-89 |
| Number of pages | 11 |
| Journal | Journal of Lightwave Technology |
| Volume | 36 |
| Issue number | 1 |
| DOIs | |
| State | Published - 1 Jan 2018 |
Keywords
- Data center interconnect
- Kramers-Kronig receiver
- direct detection
- short-reach transmission
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics