Fairuz Abdullah

Universiti Tenaga Nasional

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

M. Z. Jamaludin

Universiti Tenaga Nasional

M. H. Al‐Mansoori

Sohar University

Aiman Ismail

Universiti Tenaga Nasional

Abdul Hadi Sulaiman

Universiti Tenaga Nasional

Mohd Adzir Mahdi

Zhejiang University

Nelidya Md Yusoff

University of Technology Malaysia

Nurul Asyikin Mohamed Radzi

Universiti Tenaga Nasional

A. K. Abass

University of Technology - Iraq

Thamer Fahad Al‐Mashhadani

Kut University College

Ahmad Ashrif A. Bakar

National University of Malaysia

Cooperative Institutions

Universiti Tenaga Nasional

118

Universiti Putra Malaysia

National University of Malaysia

University of Technology Malaysia

University of Malaya

Tenaga Nasional Berhad (Malaysia)

Universiti Teknologi MARA

Universiti Sains Malaysia

Multimedia University

International Islamic University Malaysia

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Four-Wave Mixing Crosstalk Suppression Based on the Pairing Combinations of Differently Linear-Polarized Optical Signals

The Scientific World JOURNAL (2014)

H.J. Abd Norashidah Md Din M. H. Al‐Mansoori Fairuz Abdullah Hilal A. Fadhil

A new approach to suppressing the four-wave mixing (FWM) crosstalk by using the pairing combinations of differently linear-polarized optical signals was investigated. The simulation was conducted using a four-channel system, and the total data rate was 40 Gb/s. A comparative study on the suppression of FWM for existing and suggested techniques was conducted by varying the input power from 2 dBm to 14 dBm. The robustness of the proposed technique was examined with two types of optical fiber, namely, single-mode fiber (SMF) and dispersion-shifted fiber (DSF). The FWM power drastically reduced to less than −68 and −25 dBm at an input power of 14 dBm, when the polarization technique was conducted for SMF and DSF, respectively. With the conventional method, the FWM powers were, respectively, −56 and −20 dBm. The system performance greatly improved with the proposed polarization approach, where the bit error rates (BERs) at the first channel were2.57×10-40and3.47×10-29at received powers of −4.90 and −13.84 dBm for SMF and DSF, respectively.

10.1155/2014/243795

Cite

Citations (15)

Characterizing Inhibitor Content of Transformer Oil in the UV-Visible Waveband

Yang Sing Leong Pin Jern Ker M. Z. Jamaludin M Saiffuddin Saifuddin Nomanbhay

Over the years, transformer oil has been used in majority of the power transformers to provide a reliable insulating system that is effective against dielectric stresses. Oxidation often occurred in transformer oil in the presence of oxygen and moisture which will affect the stability and insulating properties of the oil. The oxidation process cannot be eliminated but it can be delayed with the presence of inhibitor content. Even though inhibitor content can reduce the oxidation rate, the amount of inhibitor content still depletes over time. Thus, a monitoring system to detect the inhibitor content concentration is very crucial as it will be able to prolong the life span of the transformer. This paper focuses on the optical characterization of inhibitor content in transformer oil by utilizing the ultraviolet-visible (UV-Vis) spectroscopy technique. It was found that oil samples with inhibitor content produce multiple absorbance peaks in the range of 350 nm to 500 nm. A clear difference in peak absorbance near 450 nm indicates the difference in the inhibitor content concentrations. Based on the results of this work, a portable and low cost optical sensing device can potentially be developed for the detection of inhibitor content in transformer oil using UV-Vis spectroscopy.

Absorbance

Ultraviolet visible spectroscopy

Ultraviolet

10.1109/icp.2018.8533214

Cite

Citations (1)

Fibre-Wireless DBA Environment using LABVIEW and USRP

Yasmin Asilah Mahmud Norashidah Md Din Fairuz Abdullah Nurul Asyikin Ramesh Kumar

Source

Cite

Citations (0)

Scheduling Smart Grid Network Traffic with Context-Awareness in Industrial Grade Router

Wan Siti Halimatul Munirah Wan Ahmad Nurul Asyikin Mohamed Radzi Mohammad Azmi Ridwan Intan Shafinaz Mustafa Nurshazlina Suhaimy

Packet switching has slowly taken its place in the smart grid network, and this promising technology is capable of scheduling traffic according to priority assignment. However, a complex situation in the grid requires a flexible solution. A Context-Aware Traffic Scheduling (CATSchA) algorithm has been proposed and this particular work will validate the simulation with the hardware setup, in a controlled environment. The delay results for several test cases are presented, obeying the predefined ranking, and following fair treatment according to their data size and data rate, whenever necessary. Excellent throughput is also reported for all cases.

10.1109/icitamee50454.2020.9398482

Cite

Citations (1)

Double-Pass Chirped Bragg Grating Erbium-Doped Fiber Amplifier: Improved Transmission Distance

M. Z. Jamaludin M.K. Abdullah Fairuz Abdullah Faidz Abd Rahman Mohd Adzir Mahdi

The paper discussed on experimental result that improve the transmission distance by use of an integrated dispersion compensated double-pass erbium-doped fiber amplifier (DPC-EDFA). The chromatic dispersion compensation is achieved using chirped fiber Bragg grating as part of the EDFA design. The eye-pattern, eye-opening and timing jitter obtained using this technique shows an improvement equivalent to the distance of about 50 km compared with the conventional double-pass EDFA (DP-EDFA).

Fiber Bragg Grating

Erbium

10.1109/nctt.2008.4814234

Cite

Citations (1)

Study of Different Gain Medium in Open-cavity Multi-wavelength Brillouin-Raman Fiber Laser

A. Ismail M. A. M. Aminuddin Abdul Hadi Sulaiman Fairuz Abdullah M. Z. Jamaludin

Earlier reported works used 7 km dispersion compensating fiber (DCF) as gain medium in open-cavity multi-wavelength Brillouin-Raman fiber laser. In this paper, we investigate the laser performance using five different fiber spools. Our initial results reported here show shorter DCF may offer optimum number of channels, side-mode suppression ratios and flatness.

Flatness (cosmology)

Raman amplification

10.1109/icp53600.2022.9912487

Cite

Citations (0)

The Power and Peace: A Batik Creation for King Hamengku Buwana X

Anastasis Research in Medieval Culture and Art (2024)

Fairuz Abdullah

10.35218/armca.2024.1.13

Cite

Citations (0)

High gain double-pass L-band EDFA with dispersion compensation as feedback loop

Laser Physics (2011)

M. R. Haleem M. H. Al‐Mansoori M. Z. Jamaludin Fairuz Abdullah Norashidah Md Din

We demonstrate an efficient double-pass L-band erbium-doped fiber amplifier (EDFA) incorporating chirped fiber Bragg grating (CFBG). The amplifier structure exploits the characteristics of CFBG to reflect the amplified signal back into the gain medium, filter out the recycled forward amplified spontaneous emission and block the residual 1480 nm pump power. The amplifier configuration has high gain and low noise figures as compared to double-pass EDFA using broadband mirror. The demonstrated amplifier has gain of more than 48 dB and low noise figure of less than 4 dB at low input signal power of −40 dBm.

Amplified spontaneous emission

Fiber Bragg Grating

10.1134/s1054660x11030029

Cite

Citations (9)

Priority-based parameter optimization strategy for reducing the effects of four-wave mixing on WDM system

Optik (2013)

J. Haider M. H. Al‐Mansoori Norashidah Md Din Fairuz Abdullah Hilal A. Fadhil

Four-wave mixing

Channel spacing

10.1016/j.ijleo.2013.06.002

Cite

Citations (25)

Improving Prediction Accuracy and Extraction Precision of Frequency Shift from Low-SNR Brillouin Gain Spectra in Distributed Structural Health Monitoring

Sensors (2022)

Nur Dalilla Nordin Fairuz Abdullah Mohd Saiful Dzulkefly Zan Ahmad Ashrif A. Bakar A.I. Krivosheev

In this paper, we studied the possibility of increasing the Brillouin frequency shift (BFS) detection accuracy in distributed fibre-optic sensors by the separate and joint use of different algorithms for finding the spectral maximum: Lorentzian curve fitting (LCF, including the Levenberg–Marquardt (LM) method), the backward correlation technique (BWC) and a machine learning algorithm, the generalized linear model (GLM). The study was carried out on real spectra subjected to the subsequent addition of extreme digital noise. The precision and accuracy of the LM and BWC methods were studied by varying the signal-to-noise ratios (SNRs) and by incorporating the GLM method into the processing steps. It was found that the use of methods in sequence gives a gain in the accuracy of determining the sensor temperature from tenths to several degrees Celsius (or MHz in BFS scale), which is manifested for signal-to-noise ratios within 0 to 20 dB. We have found out that the double processing (BWC + GLM) is more effective for positive SNR values (in dB): it gives a gain in BFS measurement precision near 0.4 °C (428 kHz or 9.3 με); for BWC + GLM, the difference of precisions between single and double processing for SNRs below 2.6 dB is about 1.5 °C (1.6 MHz or 35 με). In this case, double processing is more effective for all SNRs. The described technique’s potential application in structural health monitoring (SHM) of concrete objects and different areas in metrology and sensing were also discussed.

Structural Health Monitoring

Accuracy and precision

SIGNAL (programming language)

10.3390/s22072677

Cite

Citations (21)