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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Experimental and theoretical studies on a double-pass C-band bismuth-based erbium-doped fiber amplifier
Sulaiman Wadi Harun,R. Parvizi,X.S. Cheng,Amin Parvizi,Siamak Dawazdah Emami,Hamzah Arof,Harith Ahmad +6 more
TL;DR: In this article, a Bismuth-based Erbium-doped fiber amplifier is experimentally and theoretically investigated using 1480-nm pumping with double-pass scheme, and the theoretical analysis is solved to examine the optimum length for the C-band operation as well as the gain and noise figure characteristics.
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Current sensor based on inline microfiber Mach–Zehnder interferometer
TL;DR: In this paper, a Mach-Zehnder interferometer (MMZI) is proposed for current sensor application using flame-brushing technique where both transition parts of a microfiber are tapered to reduce the waist diameter and form an interference region.
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Q-switched Yb-doped fiber laser operating at 1073 nm using a carbon nanotubes saturable absorber
Ahmed H.H. Al-Masoodi,Mohammad Faizal Ismail,Fauzan Ahmad,Noor Hayaty Abu Kasim,Yusof Munajat,Harith Ahmad,Sulaiman Wadi Harun +6 more
TL;DR: In this article, a stable passive Q-switched Ytterbium-doped fiber laser (YDFL) operating at 1073nm region is demonstrated using single-walled carbon-nanotubes (SWCNTs) as a saturable absorber (SA).
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Chitosan capped nickel oxide nanoparticles as a saturable absorber in a tunable passively Q-switched erbium doped fiber laser
TL;DR: In this article, the NiO/chitosan SA material was used as an SA material for Q-switching operations in an erbium doped fiber laser.
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PMMA microfiber loop resonator for humidity sensor
Ninik Irawati,Tengku Normalini Raja Abdullah,Husna Abdul Rahman,Harith Ahmad,Sulaiman Wadi Harun +4 more
TL;DR: In this paper, a PMMA microfiber loop resonator with zinc oxide (ZnO) nanostructure is proposed and demonstrated for the monitoring of relative humidity, which is based on the observed decrement in the transmission of the sensor that was carefully placed in a sealed chamber.