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Photonics
Volume 7
Issue 4
10.3390/photonics7040128
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Letter

Operation of a Single-Frequency Bismuth-Doped Fiber Power Amplifier near 1.65 µm

by
Grzegorz Gomółka
1,
Monika Krajewska
1,
Małgorzata Kaleta
1,
Aleksandr M. Khegai
2,
Sergey V. Alyshev
2,
Aleksey S. Lobanov
3,
Sergei V. Firstov
2 and
Michał Nikodem
1,*
1
Department of Optics and Photonics, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
2
Prokhorov General Physics Institute of the Russian Academy of Sciences, Dianov Fiber Optics Research Center, 38 Vavilov str., 119333 Moscow, Russia
3
Institute of Chemistry of High Purity Substances, Russian Academy of Sciences, 29 Tropinin str., 603600 Nizhny Novgorod, Russia
*
Author to whom correspondence should be addressed.
Photonics 2020, 7(4), 128; https://doi.org/10.3390/photonics7040128
Submission received: 6 November 2020 / Revised: 26 November 2020 / Accepted: 8 December 2020 / Published: 9 December 2020
(This article belongs to the Special Issue Novel Specialty Optical Fibers and Applications)
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Abstract

The spectral range between 1650 and 1700 nm is an interesting region due to its potential applications in optical telecommunication and optical-based methane sensing. Unfortunately, the availability of compact and simple optical amplifiers with output powers exceeding tens of milliwatts in this spectral region is still limited. In this paper, a single-frequency continuous-wave bismuth-doped fiber amplifier (BDFA) operating at 1651 and 1687 nm is presented. With the improved signal/pump coupling and modified pump source design, the output powers of 163 mW (at 1651 nm) and 197 mW (at 1687 nm) were obtained. Application of the BDFA to the optical spectroscopy of methane near 1651 nm is also described. We demonstrate that the BDFA can be effectively used for signal amplitude enhancement in photothermal interferometry.
Keywords: optical amplifiers; doped fiber amplifiers; near-infrared; molecular gas spectroscopy; photothermal spectroscopy; heterodyne detection optical amplifiers; doped fiber amplifiers; near-infrared; molecular gas spectroscopy; photothermal spectroscopy; heterodyne detection
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MDPI and ACS Style

Gomółka, G.; Krajewska, M.; Kaleta, M.; Khegai, A.M.; Alyshev, S.V.; Lobanov, A.S.; Firstov, S.V.; Nikodem, M. Operation of a Single-Frequency Bismuth-Doped Fiber Power Amplifier near 1.65 µm. Photonics 2020, 7, 128. https://doi.org/10.3390/photonics7040128

AMA Style

Gomółka G, Krajewska M, Kaleta M, Khegai AM, Alyshev SV, Lobanov AS, Firstov SV, Nikodem M. Operation of a Single-Frequency Bismuth-Doped Fiber Power Amplifier near 1.65 µm. Photonics. 2020; 7(4):128. https://doi.org/10.3390/photonics7040128

Chicago/Turabian Style

Gomółka, Grzegorz, Monika Krajewska, Małgorzata Kaleta, Aleksandr M. Khegai, Sergey V. Alyshev, Aleksey S. Lobanov, Sergei V. Firstov, and Michał Nikodem. 2020. "Operation of a Single-Frequency Bismuth-Doped Fiber Power Amplifier near 1.65 µm" Photonics 7, no. 4: 128. https://doi.org/10.3390/photonics7040128

APA Style

Gomółka, G., Krajewska, M., Kaleta, M., Khegai, A. M., Alyshev, S. V., Lobanov, A. S., Firstov, S. V., & Nikodem, M. (2020). Operation of a Single-Frequency Bismuth-Doped Fiber Power Amplifier near 1.65 µm. Photonics, 7(4), 128. https://doi.org/10.3390/photonics7040128

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