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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.

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Graphene-Based Mode-Locked Spectrum-Tunable Fiber Laser Using Mach–Zehnder Filter

TL;DR: An ultrafast spectrum-tunable fiber laser using a tunable Mach-Zehnder filter (TMZF) and a graphene-based saturable absorber as a mode-locking element is proposed and demonstrated in this article.
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Ultra-Sensitive Humidity Sensor Based on Optical Properties of Graphene Oxide and Nano-Anatase TiO2.

TL;DR: It is reported that using the current approach, devices with high sensitivity and very low response time of only 0.3 sec can be fabricated and the proposed device was comprehensively compared with other state of the art proposed sensors in the literature and the results were promising.
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Lithium-Ion Battery State of Charge (SoC) Estimation with Non-Electrical parameter using Uniform Fiber Bragg Grating (FBG)

TL;DR: In this article, the use of non-electrical parameters for SoC estimation using deep neural network (DNN) was proposed, which has shown a great improvement in the FBG signal quality based on a high up-sampling rate, k in the spectral processing using PHRI.
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Q-switched and mode-locked thulium doped fiber lasers with nickel oxide film saturable absorber

TL;DR: In this article, a passively Q-switched and mode-locked fiber laser based on thulium-doped fiber laser (TDFL) cavity was demonstrated utilizing nickel oxide (NiO) nanoparticles as a saturable absorber.
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Effect of titanium dioxide (TiO2) nanoparticle coating on the detection performance of microfiber knot resonator sensors for relative humidity measurement

TL;DR: In this paper, the sensitivity and linearity of the uncoated and TiO2-coated microfiber knot resonator (MKR) have been analyzed and shown to have a sensitivity of 1.3 pm/%RH, in terms of the resonance wavelength, and 0.0626 dB/% RH for the transmitted output power.