S
Shaif-ul Alam
Researcher at University of Southampton
Publications - 281
Citations - 5661
Shaif-ul Alam is an academic researcher from University of Southampton. The author has contributed to research in topics: Fiber laser & Amplifier. The author has an hindex of 38, co-authored 277 publications receiving 4805 citations. Previous affiliations of Shaif-ul Alam include Wellington Management Company & Lynn University.
Papers
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Journal ArticleDOI
Thulium-doped fiber amplifier for optical communications at 2µm
TL;DR: A thulium doped fiber amplifier designed for optical communications providing high gain and low noise figure over 1910nm-2020nm with a maximum saturated output power of more than 1W is reported.
Journal ArticleDOI
73.7 Tb/s (96 x 3 x 256-Gb/s) mode-division-multiplexed DP-16QAM transmission with inline MM-EDFA
Vincent A. J. M. Sleiffer,Yongmin Jung,V. Veljanovski,R.G.H. van Uden,Maxim Kuschnerov,H.-S. Chen,Beril Inan,Lars Gruner-Nielsen,Yi Sun,David J. Richardson,Shaif-ul Alam,Francesco Poletti,Jayanta K. Sahu,Anirban Dhar,A.M.J. Koonen,Brian Corbett,Richard J. Winfield,Andrew D. Ellis,H. de Waardt +18 more
TL;DR: The total demonstrated net capacity, taking into account 20% of FEC-overhead and 7.5% additional overhead (Ethernet and training sequences), is 57.6 Tb/s, corresponding to a spectral efficiency of 12 bits/s/Hz.
Journal ArticleDOI
Diode-pumped wideband thulium-doped fiber amplifiers for optical communications in the 1800 - 2050 nm window.
Z. Li,Alexander M. Heidt,Nikita Simakov,Yongmin Jung,Jae M. O. Daniel,Shaif-ul Alam,David J. Richardson +6 more
TL;DR: The first in-band diode-pumped TDFAs operating in the 2 µm wavelength region are presented and their suitability as high performance amplifiers in potential future telecommunication networks is tested.
Proceedings ArticleDOI
73.7 Tb/s (96X3x256-Gb/s) mode-division-multiplexed DP-16QAM transmission with inline MM-EDFA
Vincent A. J. M. Sleiffer,Yongmin Jung,V. Veljanovski,Roy van Uden,Maxim Kuschnerov,Qiongyue Kang,Lars Gruner-Nielsen,Yi Sun,David J. Richardson,Shaif-ul Alam,Francesco Poletti,Jayanta K. Sahu,Anirban Dhar,Haoshuo Chen,Beril Inan,Ton Koonen,Brian Corbett,Richard J. Winfield,Andrew D. Ellis,Huug de Waardt +19 more
TL;DR: In this article, a 73.7 Tb/s (96×3×256Gb/s) DP-16QAM mode-division-multiplexed signal over 119km of few-mode fiber with inline multi-mode EDFA, using 6x6 MIMO digital signal processing.
Journal ArticleDOI
High-power wavelength-tunable cladding-pumped rare-earth-doped silica fiber lasers
Johan Nilsson,W.A. Clarkson,R. Selvas,Jayanta K. Sahu,P. W. Turner,Shaif-ul Alam,Anatoly Borisovich Grudinin +6 more
TL;DR: In this paper, the design and performance of cladding-pumped silica fiber lasers with high continuous-wave output powers and broad wavelength tunability in the 1, 15, and 2 µm spectral ranges were described.