Mohd Saiful Dzulkefly Zan
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View article: Analysis of combined moving-average moving-differential algorithms to enhance SNR in distributed optical fiber acoustic sensors
Analysis of combined moving-average moving-differential algorithms to enhance SNR in distributed optical fiber acoustic sensors Open
Moving-average and moving-differential (MA-MD) techniques are widely used to process signals from distributed optical fiber acoustic sensors (DAS). However, the optimal combination of window and interval sizes to achieve the best signal-to…
View article: Performance Comparison of Seed Generation Techniques of Stimulated Brillouin Scattering-Based Microwave Photonics Amplifier and Filter
Performance Comparison of Seed Generation Techniques of Stimulated Brillouin Scattering-Based Microwave Photonics Amplifier and Filter Open
This work presents a Brillouin amplification performance comparison of seed generation techniques using double-sideband suppressed carrier (DSB-SC) and single-sideband suppressed carrier (SSB-SC) modulations. The SSB-SC is obtained using a…
View article: State-of-The-Art application and challenges of optical fibre distributed acoustic sensing in civil engineering
State-of-The-Art application and challenges of optical fibre distributed acoustic sensing in civil engineering Open
Distributed Acoustic Sensing (DAS) technology has rapidly gained prominence across various applications. Integrating DAS with fibre-optic cables can bolster critical aspects such as wellbore integrity and pipeline security in oil and gas, …
View article: Discriminative spatial localisation in confocal reflectance and carbon dots-based fluorescence imaging using mixed-mode endoscopic scanner
Discriminative spatial localisation in confocal reflectance and carbon dots-based fluorescence imaging using mixed-mode endoscopic scanner Open
Carbon dots (CDs)-based fluorescence imaging with confocal reflectance effectively localises labelled structures with clear sample visualization. Yet, integrating these modalities into single-fibre cantilever-based endoscopic scanners pose…
View article: Brillouin frequency shift measurement by zero-crossing point search in virtually synthesized spectra of Brillouin gain and loss
Brillouin frequency shift measurement by zero-crossing point search in virtually synthesized spectra of Brillouin gain and loss Open
We demonstrate a method for fast and precise Brillouin frequency shift measurement based on searching for the zero-crossing point of a virtually composed spectrum of Brillouin gain and loss obtained by a dual-frequency probe beam. Simulati…
View article: Enhancement of in-vitro cellular structure morphology imaging using multiwavelength confocal endoscopic scanner
Enhancement of in-vitro cellular structure morphology imaging using multiwavelength confocal endoscopic scanner Open
Optical imaging is crucial for cell examination, but its instruments' bulky optics limit their flexibility, and a single wavelength provides limited sample information. This paper presents a fibre cantilever-based endoscopic scanner for mu…
View article: Brillouin Frequency Shift Estimation for Brillouin Optical Time Domain Analysis Using Brillouin Gain and Loss Spectra With SVC
Brillouin Frequency Shift Estimation for Brillouin Optical Time Domain Analysis Using Brillouin Gain and Loss Spectra With SVC Open
We propose and investigate a method to estimate Brillouin frequency shift (BFS) for Brillouin optical time domain analysis (BOTDA) using Brillouin gain and loss spectra (BGS and BLS) along with support vector machine classifier (SVC) that …
View article: Passively Q-switching an all polarization-maintaining erbium-doped fiber laser with a rhenium disulfide (ReS2) saturable absorber
Passively Q-switching an all polarization-maintaining erbium-doped fiber laser with a rhenium disulfide (ReS2) saturable absorber Open
View article: Density estimation of SARS-CoV2 spike proteins using super pixels segmentation technique
Density estimation of SARS-CoV2 spike proteins using super pixels segmentation technique Open
View article: Tunable 60 GHz Multiwavelength Brillouin Erbium Fiber Laser
Tunable 60 GHz Multiwavelength Brillouin Erbium Fiber Laser Open
An experimental study of a tunable 60 GHz multiwavelength Brillouin erbium fiber laser is presented in this paper. Two unidirectional ring laser cavities and two pre-amplification laser cavities are used. In the first three cavities, a Bri…
View article: Fast and accurate Brillouin frequency shift extraction in Brillouin optical time domain reflectometry (BOTDR) distributed fiber sensor by using ensemble machine learning algorithm
Fast and accurate Brillouin frequency shift extraction in Brillouin optical time domain reflectometry (BOTDR) distributed fiber sensor by using ensemble machine learning algorithm Open
To improve the Brillouin frequency shift (BFS) resolution measurement and processing time of the differential cross-spectrum Brillouin optical time domain reflectometry (DCS-BOTDR) fiber sensor, our team suggests employing the ensemble mac…
View article: SARS-CoV-2 Morphometry Analysis and Prediction of Real Virus Levels Based on Full Recurrent Neural Network Using TEM Images
SARS-CoV-2 Morphometry Analysis and Prediction of Real Virus Levels Based on Full Recurrent Neural Network Using TEM Images Open
The SARS-CoV-2 virus is responsible for the rapid global spread of the COVID-19 disease. As a result, it is critical to understand and collect primary data on the virus, infection epidemiology, and treatment. Despite the speed with which t…
View article: Photonics enabled intelligence system to identify SARS-CoV 2 mutations
Photonics enabled intelligence system to identify SARS-CoV 2 mutations Open
View article: Improving Prediction Accuracy and Extraction Precision of Frequency Shift from Low-SNR Brillouin Gain Spectra in Distributed Structural Health Monitoring
Improving Prediction Accuracy and Extraction Precision of Frequency Shift from Low-SNR Brillouin Gain Spectra in Distributed Structural Health Monitoring Open
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: Loren…
View article: Morphological Features and Divergence of SARS-CoV 2 and SARS-CoV Virus Using TEM Images
Morphological Features and Divergence of SARS-CoV 2 and SARS-CoV Virus Using TEM Images Open
The COVID-19 pandemic has created a global health catastrophe affecting every aspect of human life. In addition, it has weighed heavily on almost all countries, especially those with less advanced healthcare systems. Improving the accuracy…
View article: Human Body Performance with COVID-19 Affectation According to Virus Specification Based on Biosensor Techniques
Human Body Performance with COVID-19 Affectation According to Virus Specification Based on Biosensor Techniques Open
Life was once normal before the first announcement of COVID-19’s first case in Wuhan, China, and what was slowly spreading became an overnight worldwide pandemic. Ever since the virus spread at the end of 2019, it has been morphing and rap…
View article: Design of Multiwavelength EDF-Raman Lasers Utilizing Mach-Zehnder Interferometer
Design of Multiwavelength EDF-Raman Lasers Utilizing Mach-Zehnder Interferometer Open
This paper presents the design of multiwavelength Erbium Doped Fiber (EDF)-Raman fiber laser utilizing Mach-Zehnder Interferometer (MZI) with various cavity structures. A multiwavelength laser employing hybrid gain medium of EDF-Raman ampl…
View article: A Review on Rhenium Disulfide: Synthesis Approaches, Optical Properties, and Applications in Pulsed Lasers
A Review on Rhenium Disulfide: Synthesis Approaches, Optical Properties, and Applications in Pulsed Lasers Open
Rhenium Disulfide (ReS2) has evolved as a novel 2D transition-metal dichalcogenide (TMD) material which has promising applications in optoelectronics and photonics because of its distinctive anisotropic optical properties. Saturable absorp…
View article: A Review on Rhenium Disulfide: Synthesis Approaches, Optical Properties, and Applications in Pulsed Lasers
A Review on Rhenium Disulfide: Synthesis Approaches, Optical Properties, and Applications in Pulsed Lasers Open
Rhenium Disulfide (ReS2) has evolved as a novel 2D transition-metal dichalcogenide (TMD) material which has promising applications in optoelectronics and photonics because of its distinctive anisotropic attributes. In this review, we empha…
View article: Digital Filtering Techniques for Performance Improvement of Golay Coded TDM-FBG Sensor
Digital Filtering Techniques for Performance Improvement of Golay Coded TDM-FBG Sensor Open
For almost a half-decade, the unique autocorrelation properties of Golay complementary pairs (GCP) have added a significant value to the key performance of conventional time-domain multiplexed fiber Bragg grating sensors (TDM-FBGs). Howeve…
View article: Detection of COVID-19 Virus on Surfaces Using Photonics: Challenges and Perspectives
Detection of COVID-19 Virus on Surfaces Using Photonics: Challenges and Perspectives Open
The propagation of viruses has become a global threat as proven through the coronavirus disease (COVID-19) pandemic. Therefore, the quick detection of viral diseases and infections could be necessary. This study aims to develop a framework…
View article: Simulation Analysis on the Simultaneous Deployment of Brillouin Gain and Loss in Coded Brillouin Optical Time Domain Analysis (BOTDA) Fiber Sensor
Simulation Analysis on the Simultaneous Deployment of Brillouin Gain and Loss in Coded Brillouin Optical Time Domain Analysis (BOTDA) Fiber Sensor Open
We report in this paper the simulation analysis on the simultaneous deployment of Brillouin gain and Brillouin loss in the Golay coded phase-shift pulse Brillouin optical time domain analysis (PSP-BOTDA) fiber optic sensor for improving th…
View article: Optical-Mechanical Configuration of Imaging Operation for Endoscopic Scanner: A Review
Optical-Mechanical Configuration of Imaging Operation for Endoscopic Scanner: A Review Open
Miniaturized endoscopic scanners have had a significant impact on high-resolution optical imaging. Technological advancements in micro-electromechanical systems and optical fiber technology have resulted in various optical-mechanical confi…
View article: An Analysis Review of Detection Coronavirus Disease 2019 (COVID-19) Based on Biosensor Application
An Analysis Review of Detection Coronavirus Disease 2019 (COVID-19) Based on Biosensor Application Open
Timely detection and diagnosis are essentially needed to guide outbreak measures and infection control. It is vital to improve healthcare quality in public places, markets, schools and airports and provide useful insights into the technolo…
View article: Comparative Analysis on the Deployment of Machine Learning Algorithms in the Distributed Brillouin Optical Time Domain Analysis (BOTDA) Fiber Sensor
Comparative Analysis on the Deployment of Machine Learning Algorithms in the Distributed Brillouin Optical Time Domain Analysis (BOTDA) Fiber Sensor Open
This paper demonstrates a comparative analysis of five machine learning (ML) algorithms for improving the signal processing time and temperature prediction accuracy in Brillouin optical time domain analysis (BOTDA) fiber sensor. The algori…
View article: Analysis of Phase-Shift Pulse Brillouin Optical Time-Domain Reflectometry
Analysis of Phase-Shift Pulse Brillouin Optical Time-Domain Reflectometry Open
Distributed strain and temperature can be measured by using local Brillouin backscatter in optical fibers based on the strain and temperature dependence of the Brillouin frequency shift. The technique of analyzing the local Brillion backsc…
View article: Development of Internet of Things Optical Sensor based on Surface Plasmon Resonance Phase Interferometry
Development of Internet of Things Optical Sensor based on Surface Plasmon Resonance Phase Interferometry Open
This paper demonstrates the integration between an Internet of Things platform and an optical sensor based on surface plasmon resonance (SPR) phase interferometry. The optical sensing system starts when the liquid containing the heavy meta…
View article: Improving the Signal-to-Noise Ratio of Time Domain Fiber Bragg Grating Sensor Based on Hybrid Simplex and Golay Coding Technique
Improving the Signal-to-Noise Ratio of Time Domain Fiber Bragg Grating Sensor Based on Hybrid Simplex and Golay Coding Technique Open
We report on the experimental results of the combination of unique auto-correlation properties of Golay complementary code and Hadamard matrix properties of standard simplex code. The combination of the two coding techniques results in imp…
View article: Pulse Compressed Time Domain Multiplexed Fiber Bragg Grating Sensor: A Comparative Study
Pulse Compressed Time Domain Multiplexed Fiber Bragg Grating Sensor: A Comparative Study Open
This paper experimentally demonstrates the feasibility of improving the sensing performance of fiber Bragg grating (FBG)-based point sensors by deploying two pulse coding techniques, simplex coding (SSC), and Golay complementary codes (GCC…
View article: Ionic Conductive Polyurethane-Graphene Nanocomposite for Performance Enhancement of Optical Fiber Bragg Grating Temperature Sensor
Ionic Conductive Polyurethane-Graphene Nanocomposite for Performance Enhancement of Optical Fiber Bragg Grating Temperature Sensor Open
Polyurethane-graphene (PU-graphene) nanocomposite was utilized as the sensing material for a fiber Bragg grating (FBG) temperature sensor. The nanocomposite was characterized using a Fourier transform infrared spectroscopy (FTIR), thermogr…