Cladding pumped bismuth-doped fiber amplifiers operating in O-, E-, and S-telecom bands

Bismuth-doped fibers (BDFs) are considered nowadays as an essential part of the development of novel optical amplifiers, which can provide a significant upgrade to existing fiber optic telecommunication systems, securing multiband data transmission. In this paper, a series of BDF amplifiers (BDFAs)...

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Bibliographic Details
Published in:Optics letters 2023-03, Vol.48 (6), p.1339-1342
Main Authors: Vakhrushev, Alexander, Khegai, Aleksandr, Alyshev, Sergey, Riumkin, Konstantin, Kharakhordin, Alexander, Firstova, Elena, Umnikov, Andrey, Lobanov, Alexey, Afanasiev, Fedor, Guryanov, Aleksei, Melkumov, Mikhail, Firstov, Sergei
Format: Article
Language:English
Subjects:
Amplifiers
Bismuth
Cladding
Data transmission
Doped fibers
Electric communication systems
Fiber optics
Low noise
Semiconductor lasers
Telecommunications
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Summary:Bismuth-doped fibers (BDFs) are considered nowadays as an essential part of the development of novel optical amplifiers, which can provide a significant upgrade to existing fiber optic telecommunication systems, securing multiband data transmission. In this paper, a series of BDF amplifiers (BDFAs) for O-, E-, and S-telecom bands based on a cladding pumping scheme using low-cost multimode semiconductor laser diodes at a wavelength of 0.7-0.8 µm were demonstrated for, it is understood, the first time. The developed BDFAs are characterized by a high peak gain of >25-30 dB in the corresponding telecom bands and a relatively low noise figure of 5-6 dB. Comparative analysis shows that most of the parameters of cladding pumped BDFAs are close to those of the best core pumped ones. This research opens up new opportunities for utilizing Bi-doped fibers as a key element of cost-effective and ready-to-work BDFAs for various practical applications.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.482873