This article is cited in 2 papers

Fibreoptic communication lines

Phase-modulated transmission format with non-central chirp over high-speed optical link communication without dispersion compensation

E. G. Shapiro, D. A. Shapiro

Institute of Automation and Electrometry, Siberian Branch of Russian Academy of Sciences, Novosibirsk

Abstract: A communication line without dispersion compensation is considered. A new type of phase-modulated format in which the Gaussian pulses with varying non-central chirp are transmitted is proposed. It is stated that there is a time shift between the pulses with respect to each other. Numerical simulation with the use of 8-PSK format as an example shows that this method of pulse shaping at the beginning of the line leads to a smaller nonlinear distortion of the signal even with relatively small chirps.

Keywords: fiber-optical communication lines, mathematical modeling, Schrödinger non-linear equation, phase modulation, non-central chirping.

Received: 11.04.2023
Revised: 18.04.2023

 English version: Quantum Electronics, 2023, 50:suppl. 10, S1156–S1162