Transient processes and cross talk in an O-band bismuth-doped fibre amplifier. (July 2021)

• Record Type: Journal Article
• Authors: Alyshev, S V; Kharakhordin, A V; Khegai, A M; Ososkov, Ya Zh; Vakhrushev, A S; Firstova, E G; Riumkin, K E; Melkumov, M A; Lobanov, A S; Guryanov, A N; Firstov, S V
• Is Part Of: Quantum electronics. Volume 51:Number 7(2021)
• Page Start: 630
• Page End: 634
• Publication Date: 2021-07
• Subjects: bismuth -- amplifier -- optical fibre -- O band -- data transmission.; Quantum electronics -- Periodicals; 537.5
• DOI: 10.1070/QEL17563
• Languages: English
• ISSNs: 1063-7818

Abstract

Abstract: This paper reports on transient processes and cross talk (cross modulation) in an O-band (1260 – 1360 nm) bismuth-doped phosphosilicate fibre amplifier. Times characterising dynamic parameters of the amplifier at a pump wavelength of 1.23 μm have been determined experimentally. Data have been obtained on the effect of the modulation frequency Ω of one of the channels in the range 10 Hz to 1 MHz on the cross-talk intensity in another channel. The data, in combination with numerical calculation results, show that the cross talk in the Bi-doped fibre amplifier is insignificant at modulation frequencies Ω above 100 kHz. Our results demonstrate that O-band Bi-doped fibre amplifiers are potentially attractive for practical application in multichannel high-speed data transmission systems.