Phase-sensitively amplified wavelength-division multiplexed optical transmission systems
Journal article, 2021

The throughput and reach in fiber-optic communication links are limited by in-line optical amplifier noise and the Kerr nonlinearity in the optical transmission fiber. Phase-sensitive amplifiers (PSAs) are capable of amplifying signals without adding excess noise and mitigating the impairments caused by the Kerr nonlinearity. However, the effectiveness of Kerr nonlinearity mitigation depends on the dispersion pre-compensation in each span. This paper investigates dense wavelength-division multiplexed PSA-amplified links using joint processing with a less complex digital domain Volterra nonlinear equalizer at the receiver. Both numerically and with experiments, it is shown that this significantly reduces the impact of the dispersion pre-compensation in each span. Also, with simulations, a substantial improvement in transmission reach is demonstrated for PSA links.

Author

Kovendhan Vijayan

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Zonglong He

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Benjamin Foo

Infinera Corporation

Jochen Schröder

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Magnus Karlsson

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Peter Andrekson

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Optics Express

1094-4087 (ISSN)

Vol. 29 21 33086-33096

Subject Categories

Telecommunications

Other Physics Topics

Signal Processing

DOI

10.1364/OE.426504

More information

Latest update

10/21/2021