Dispersion management for nonlinearity mitigation in two-span 28 GBaud QPSK phase-sensitive amplifier linksAstra, Egon; Olsson, Samuel L. I.; Eliasson, Henrik; Andrekson, Peter AvoOptics express2017 / p. 13163-13173 : ill https://doi.org/10.1364/OE.25.013163

Erratum to: Long-haul optical transmission link using low-noise phase-sensitive amplifiers (Nature Communications, (2018), 9, 1, (2513), 10.1038/s41467-018-04956-5)Olsson, Samuel L. I.; Eliasson, Henrik; Astra, Egon; Karlsson, Magnus; Andrekson, Peter A.Nature Communications2018 / Art. nr. 3064 https://doi.org/10.1038/s41467-018-05591-w Journal metrics at Scopus Article at Scopus Journal metrics at WOS

High-accuracy reference standards for quantitative two-photon absorption spectroscopy = Kõrgtäpsusega standardid kvantitatiivses kahefootonses neeldumisspektroskoopiasReguardati Di Castelfranco, Sophie De2017 https://digi.lib.ttu.ee/i/?8432

Li@C60thin films : characterization and nonlinear optical propertiesWolf, Mathias; Toyouchi, Shuichi; Walke, Peter R.; Umemoto, Kazuki; Masuhara, Akito; Fukumura, Hiroshi; Takano, Yuta; Yamada, Michio; Hirai, Kenji; Fron, Eduard; Uji-I, HiroshiRSC Advances2021 / p. 389 - 394 https://doi.org/10.1039/d1ra08051b Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Long-haul optical transmission link using low-noise phase-sensitive amplifiersOlsson, Samuel L. I.; Eliasson, Henrik; Astra, Egon; Karlsson, Magnus; Andrekson, Peter AvoNature communications2018 / art. 2513, 7 p. : ill https://doi.org/10.1038/s41467-018-04956-5 Eesti 27 aastat internetis välismaailmaga: teadlaste uus andmeedastustehnoloogia Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Transmission fiber nonlinearity mitigation in optical communication links using phase-sensitive parametric amplifiers = Edastusfiibri mittelineaarsete mõjutuste vähendamine optilistes sidesüsteemides faasitundlike parameetriliste võimendite abilAstra, Egon2019 https://digikogu.taltech.ee/et/Item/2a85df1e-6c58-45ef-8814-29510894bfc3

Two-photon spectroscopy as a new quantitative protonation probe = Kahefotoonne neeldumisspektroskoopia kui uus kvantitatiivne protoneerimise sondRammo, Matt2023 https://doi.org/10.23658/taltech.21/2023 https://digikogu.taltech.ee/et/Item/f9c53f09-f44d-431c-9c3d-5858e514a3a4 https://www.ester.ee/record=b5560469*est