Publications by authors named "Sergei Firstov"

Claim this Profile
U
Ultra-broadband optical amplifiers based on bismuth-doped heterogeneous-core fibers.
Sergey Alyshev, Alexander Kharakhordin, Andrey Umnikov, Denis Oleinik, Aleksandr Khegai, Elena Firstova, Sergei Firstov

Opt Lett· August 2025

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
P
Polarization-dependent gain in bismuth-doped phospho- and germanosilicate fiber amplifiers.
Alexander V Elopov, Konstantin E Riumkin, Fedor V Afanasiev, Sergey V Alyshev, Alexander V Kharakhordin, Elena G Firstova, Sergei V Firstov

Opt Lett· September 2024

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
1
1283-1460 nm continuously tunable, watt-level bismuth-doped phosphosilicate fiber laser and its frequency doubling to a visible laser.
Hang Wang, Luming Song, Tingting Chen, Lu Huang, Fengbo Han, Sergei Firstov

Opt Lett· August 2024

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
S
Supermode lasing and light amplification in multicore bismuth-doped fiber.
Sergey Alyshev, Alexander Vakhrushev, Andrey Umnikov, Vladimir Velmiskin, Denis Oleinik, Elena Firstova, Sergei Firstov

Opt Express· August 2024

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
P
Precise mode control of laser-written waveguides for broadband, low-dispersion 3D integrated optics.
Yuying Wang, Lijing Zhong, Kuen Yao Lau, Xuhu Han, Yi Yang, Sergei Firstov

Light Sci Appl· June 2024

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
C
Cladding-pumped laser and amplifier for E- and S-bands based on multimode bismuth-doped graded-index fibers: toward "watt-level" output power.
Alexander Vakhrushev, Andrey Umnikov, Alexander Dostovalov, Konstantin Riumkin, Sergey Alyshev, Elena Firstova, Sergei Firstov

Opt Lett· April 2024

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
C
Cladding pumped bismuth-doped fiber amplifiers operating in O-, E-, and S-telecom bands.
Alexander Vakhrushev, Aleksandr Khegai, Sergey Alyshev, Konstantin Riumkin, Alexander Kharakhordin, Elena Firstova, Sergei Firstov

Opt Lett· March 2023

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
C
Cladding-pumped bismuth-doped fiber laser.
Sergei Firstov, Andrey Umnikov, Aleksandr Kharakhordin, Alexander Vakhrushev, Elena Firstova

Opt Lett· February 2022

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
H
Heterodyne photothermal spectroscopy of methane near 1651 nm inside hollow-core fiber using a bismuth-doped fiber amplifier.
Grzegorz Gomolka, Monika Krajewska, Aleksandr M Khegai, Sergey V Alyshev, Aleksey S Lobanov, Sergei V Firstov

Appl Opt· May 2021

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
R
Radial distribution and absorption cross section of active centers in bismuth-doped phosphosilicate fibers.
Aleksandr Khegai, Sergei Firstov, Konstantin Riumkin, Sergey Alyshev, Fedor Afanasiev

Opt Express· September 2020

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
C
Compact and efficient O-band bismuth-doped phosphosilicate fiber amplifier for fiber-optic communications.
Sergei V Firstov, Aleksandr M Khegai, Alexander V Kharakhordin, Sergey V Alyshev, Elena G Firstova

Sci Rep· July 2020

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
B
Bend-insensitive bismuth-doped PO-SiO glass core fiber for a compact O-band amplifier.
Sergei Firstov, Aleksandr Khegai, Konstantin Riumkin, Yan Ososkov, Elena Firstova

Opt Lett· May 2020

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
C
Characterization of a single-frequency bismuth-doped fiber power amplifier with a continuous wave and modulated seed source at 1687  nm.
Grzegorz Gomolka, Aleksandr M Khegai, Sergei V Alyshev, Aleksey S Lobanov, Sergei V Firstov

Appl Opt· February 2020

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
P
Photostability of laser-active centers in bismuth-doped GeO-SiO glass fibers under pumping at 1550 nm.
Sergey Alyshev, Alexander Kharakhordin, Elena Firstova, Aleksandr Khegai, Mikhail Melkumov, Sergei Firstov

Opt Express· October 2019

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
B
Bismuth-doped fiber laser at 1.32 μm mode-locked by single-walled carbon nanotubes.
Aleksandr Khegai, Mikhail Melkumov, Sergei Firstov, Konstantin Riumkin, Yury Gladush

Opt Express· September 2018

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
F
Formation of laser-active centers in bismuth-doped high-germania silica fibers by thermal treatment.
Sergei Firstov, Alexander Kharakhordin, Sergey Alyshev, Konstantin Riumkin, Elena Firstova

Opt Express· May 2018

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
N
NALM-based bismuth-doped fiber laser at 1.7  μm.
Aleksandr Khegai, Mikhail Melkumov, Konstantin Riumkin, Vladimir Khopin, Sergei Firstov

Opt Lett· March 2018

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
A
A 23-dB bismuth-doped optical fiber amplifier for a 1700-nm band.
Sergei V Firstov, Sergey V Alyshev, Konstantin E Riumkin, Vladimir F Khopin, Alexey N Guryanov

Sci Rep· June 2016

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
1
1700 nm dispersion managed mode-locked bismuth fiber laser.
Teppo Noronen, Sergei Firstov, Evgeny Dianov, Oleg G Okhotnikov

Sci Rep· April 2016

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
P
Photobleaching effect in bismuth-doped germanosilicate fibers.
Sergei Firstov, Sergey Alyshev, Vladimir Khopin, Mikhail Melkumov, Alexey Guryanov

Opt Express· July 2015

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
B
Bismuth-doped optical fibers and fiber lasers for a spectral region of 1600-1800  nm.
Sergei Firstov, Sergey Alyshev, Mikhail Melkumov, Konstantin Riumkin, Alexey Shubin

Opt Lett· December 2014

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
A
Anti-Stokes luminescence in bismuth-doped silica and germania-based fibers.
Sergei V Firstov, Vladimir F Khopin, Vladimir V Velmiskin, Elena G Firstova, Igor A Bufetov

Opt Express· July 2013

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis