S
Sergei Popov
Researcher at Imperial College London
Publications - 198
Citations - 5357
Sergei Popov is an academic researcher from Imperial College London. The author has contributed to research in topics: Fiber laser & Photonic-crystal fiber. The author has an hindex of 35, co-authored 198 publications receiving 4897 citations. Previous affiliations of Sergei Popov include Royal Institute of Technology & University of Bath.
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Journal ArticleDOI
Tunable Q-switched fiber laser based on saturable edge-state absorption in few-layer molybdenum disulfide (MoS₂).
Robert I. Woodward,E. J. R. Kelleher,Richard C. T. Howe,Guohua Hu,Felice Torrisi,Tawfique Hasan,Sergei Popov,James Taylor +7 more
TL;DR: A mechanism, based on edge states within the bandgap, is proposed, responsible for the wideband nonlinear optical absorption exhibited by the few-layer MoS₂ sample, despite operating at photon energies lower than the material bandgap.
Journal ArticleDOI
Tm-doped fiber laser mode-locked by graphene-polymer composite
Meng Zhang,Edmund J. R. Kelleher,Felice Torrisi,Zhipei Sun,Tawfique Hasan,Daniel Popa,Fengqiu Wang,Andrea C. Ferrari,Sergei Popov,James Taylor +9 more
TL;DR: In this article, the authors demonstrate mode-locking of a thulium-doped fiber laser operating at 1.94 μm, using a graphene-polymer based saturable absorber.
Journal ArticleDOI
Zero-dispersion wavelength decreasing photonic crystal fibers for ultraviolet-extended supercontinuum generation
Alexandre Kudlinski,A.K. George,Jonathan Knight,John C. Travers,A. B. Rulkov,Sergei Popov,James Taylor +6 more
TL;DR: The fabrication of photonic crystal fibers with a continuously-decreasing zero-dispersion wavelength along their length is reported, designed to extend the generation of supercontinuum spectra from the visible into the ultraviolet.
Journal ArticleDOI
Solution processed MoS2-PVA composite for sub-bandgap mode-locking of a wideband tunable ultrafast er:fiber laser
Meng Zhang,Richard C. T. Howe,Robert I. Woodward,Edmund J. R. Kelleher,Felice Torrisi,Guohua Hu,Sergei Popov,J. Roy Taylor,Tawfique Hasan +8 more
TL;DR: In this paper, a few-layer molybdenum disulfide (MoS2)-polymer composite by liquid phase exfoliation of chemically pristine MoS2 crystals is used to demonstrate a wideband tunable, ultrafast mode-locked fiber laser.
Journal ArticleDOI
Tm-doped fiber laser mode-locked by graphene-polymer composite
Meng Zhang,Edmund J. R. Kelleher,Felice Torrisi,Zhipei Sun,Tawfique Hasan,Daniel Popa,Fengqiu Wang,Andrea C. Ferrari,Sergei Popov,James Taylor +9 more
TL;DR: This work demonstrates mode-locking of a thulium-doped fiber laser operating at 1.94 μm, using a graphene-polymer based saturable absorber, which is a simple, low-cost, stable and convenient laser oscillator for applications where eye-safe and low-photon-energy light sources are required.