Signal amplifiers in optical communication systems

Nurzhigit Smailov; Nurlybek Turar; Akezhan Sabibolda

doi:10.35784/iapgos.8243

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Published: Jun 30, 2026

DOI: https://doi.org/10.35784/iapgos.8243

Issue Vol. 16 No. 2 (2026)

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Authors

Nurzhigit Smailov

n.smailov@satbayev.university

Satbayev University, Kazakhstan

https://orcid.org/0000-0002-7264-2390

Nurlybek Turar

Nurlybek.turar.01@mail.ru

Satbayev University, Kazakhstan

Akezhan Sabibolda

sabibolda98@gmail.com

Satbayev University, Kazakhstan

https://orcid.org/0000-0002-1186-7940

Abstract

This work focuses on modelling an optical soliton-based pulse amplitude modulation (PAM) system incorporating linear semiconductor optical amplifiers (LSAs). Simulations were performed to determine the maximum output power for different bit/symbol PAM soliton configurations, with single-soliton propagation analysed over a 200 km optical fibre link. The study also evaluates the peak Q-factor for these PAM schemes at 200 km under varying injection currents supplied to the semiconductor optical amplifiers. In addition, the simulations examine the total electrical power detected at the photodetectors for soliton systems across different PAM formats and SOA injection levels, all over the same fibre length. Results show that increasing the injection current raises the electrical output power of the amplifiers, while the corresponding Q-factor in the soliton transmission tends to decrease.

Keywords:

electrooptic modulators, pulse amplitude modulation, SOA injection current, soliton pulse

Sustainable Development Goals (SDG)

9 - Industry, Innovation, Technology and Infrastructure
11 - Sustainable cities and communities

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Smailov, N., Turar, N., & Sabibolda, A. (2026). Signal amplifiers in optical communication systems. Informatyka, Automatyka, Pomiary W Gospodarce I Ochronie Środowiska, 16(2), 32–36. https://doi.org/10.35784/iapgos.8243

Signal amplifiers in optical communication systems

Issue Vol. 16 No. 2 (2026)

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