H
Harith Ahmad
Researcher at University of Malaya
Publications - 1197
Citations - 14394
Harith Ahmad is an academic researcher from University of Malaya. The author has contributed to research in topics: Fiber laser & Laser. The author has an hindex of 45, co-authored 1126 publications receiving 11904 citations. Previous affiliations of Harith Ahmad include Airlangga University & University of Glasgow.
Papers
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Multi-wavelength laser generation with Bismuthbased Erbium-doped fiber.
TL;DR: A multi-wavelength laser comb is demonstrated using a nonlinear effect in a backward pumped Bismuth-based Erbium-doped fiber (Bi-EDF) for the first time.
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Multiwall carbon nanotube polyvinyl alcohol-based saturable absorber in passively Q-switched fiber laser
Harith Ahmad,Mohammad Faizal Ismail,S.N.M. Hassan,Fauzan Ahmad,Mohd Zamani Zulkifli,Sulaiman Wadi Harun +5 more
TL;DR: A compact Q-switched erbium-doped fiber laser capable of generating high-energy pulses using a newly developed multiwall carbon nanotube (CNT) polyvinyl alcohol (PVA) thin film based saturable absorber and the proposed method of multiwall CNT/PVA thin film fabrication is low in cost and involves uncomplicated processes.
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Graphene Oxide-Based Q-Switched Erbium-Doped Fiber Laser
Yuen-Kiat Yap,Nay Ming Huang,Sulaiman Wadi Harun,Sulaiman Wadi Harun,Harith Ahmad,Harith Ahmad +5 more
TL;DR: In this paper, a pulsed ring erbium-doped fiber laser based on graphene oxide (GO), employing a simplified Hummer's method to synthesize the GO via chemical oxidation of graphite flakes at room temperature, was demonstrated.
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Mid-infrared supercontinuum generation using As2Se3 photonic crystal fiber and the impact of higher-order dispersion parameters on its supercontinuum bandwidth
TL;DR: In this paper, a dispersion engineered As2Se3chalcogenide hexagonal photonic crystal fiber which can produce a mid-infrared supercontinuum (SC) spectral evolution spanning from 2 μm to beyond 15 μm with a low peak power of 3 kW is numerically designed and demonstrated.
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Regenerated fibre Bragg grating fabricated on high germanium concentration photosensitive fibre for sensing at high temperature
TL;DR: A Regenerated Fibre Bragg Grating (RFBG) with repeatable high temperature response between 400°C and 1200°C was demonstrated using a hydrogen-loaded, highly germanium-doped, photosensitive fiber as discussed by the authors.