- Photonic and Optical Devices
- Advanced Fiber Laser Technologies
- Optical Network Technologies
- Mechanical and Optical Resonators
- Advanced Fiber Optic Sensors
- Advanced Photonic Communication Systems
- Quantum Information and Cryptography
- Quantum optics and atomic interactions
- Semiconductor Lasers and Optical Devices
- Orbital Angular Momentum in Optics
- Neural Networks and Reservoir Computing
- Photonic Crystal and Fiber Optics
- Plasmonic and Surface Plasmon Research
- Photonic Crystals and Applications
- Nonlinear Photonic Systems
- Laser-Matter Interactions and Applications
- Microfluidic and Bio-sensing Technologies
- Terahertz technology and applications
- Diamond and Carbon-based Materials Research
- Molecular Junctions and Nanostructures
- Cold Atom Physics and Bose-Einstein Condensates
- Gyrotron and Vacuum Electronics Research
- Optical Wireless Communication Technologies
- Trade Secret Protection Methods
- Magneto-Optical Properties and Applications
Ton Duc Thang University
2016-2022
Van Lang University
2022
Sakon Nakhon Rajabhat University
2021-2022
Institute of Materials Science
2018-2021
King Mongkut's Institute of Technology Ladkrabang
2009-2020
Advanced Institute of Materials Science
2019-2020
Material Sciences (United States)
2019
King Mongkut's University of Technology North Bangkok
2003-2016
Kasem Bundit University
2011-2015
Kasetsart University
2015
In this research, the proposed design presents compact sensing performances while infiltrating blood fluid in central hole of D-shaped elliptical dual-core photonic crystal fiber (PCF) configuration. The properties such as index difference, coupling length, and transmission spectrum pertains property plasma cell. sensor can detect by finite element method (FEM) which be utilized to variation plasmon light using materials.
Abstract This article discusses the tri‐core photonic crystal microstructure fiber for process of simultaneous sensing salinity and temperature water substances. kind is preferred in many application to scale detection micrometer range. In this novel sensor, sensitivity calculated through coupling mechanism by tracking wavelength shift various concentrations using finite element method. The sensible samples are liquid infiltrated into framed hollow cavity. Based on principle between silica...
The recent progress in optical computing outlines the fact that electronic has almost failed to cope with international computation and communication traffic demand. Thanks non-linear material (NLM) which pave way new designs of devices. A proposal for developing most basic element computer such as switch, gates like OR gate, AND XOR flip-flops…. etc. been introduced research papers, also a logic arithmetic processor (OLAP) all-optical a-stable multi-vibrator introduced. Here some...
Abstract This study outlines the distributed feedback laser for signal power amplitude level improvement in long spectral band of 1550 nm wavelength within supporting pumped 1480 nm. The bias and modulation peak currents based are varied order to test level, variations after fiber-optic channel light detectors. is measured against time bit period variations. emphasis enhanced best selection values both a current at 45 mA 0.5 mA.
This paper investigated the different materials of optical fibers, two them are plastic fibers that namely polysulfone (PSU)/vinyl-phenyl acetate (VPAC) with refractive indices 1.63/1.567, and second material sapphire (S)/polysulfone (PSU) 1.77/1.63. One other consists fluorite (FT)/polytetrafluorophenylmethacrylate (PTFPMA) 1.433/1.422, where fluoride (FD)/poly methylmethacrylate (PMMA) 1.56/1.49. Finally, third silica (Si)/tetrafluoropropylmethacrylate (TFPMA) 1.46/1.373. The simulation...
Abstract The study presents the average power model of optical Raman fiber amplifiers based on frequency spacing and amplifier section stage optimization technique. is taken from 25 to 75 km 0.2 up 1 nm. Input/output signal variations are measured versus operating wavelength range bit time period variations. suitable input for transmitter chosen be −10 dBm return zero modulation code applied with an available data rate 10 Gb/s. Sixty-four channels multiplexed benefit a multi-number users levels.
This study presents the first order optical soliton propagation systems for ultra-high transmission distance that reaches up to 20,000 Km with data rates of 80 Gb/s and its corresponding maximum Q-factor Soliton peak power. The simulation has been performed 20000 at operating wavelength 1300 1550 nm.
Abstract This study has presented the nonlinear medium such as passive like highly fiber (HNLF) and active SOA. The FWM effects have ended up plainly huge at high optical power levels become even more meaningful when capacity of transmission line is increased, which been reached through decreasing channel separations. Also, anatomy done to analyze performance unequal spacing considered. outcomes indicate that used, beat frequency generated due effect in WDM system was increased large values,...
Abstract This study presents an analytical model analysis of reflection/transmission characteristics long-period fiber Bragg grating (LPFBG) by using coupled mode theory. Reflected signal power is deeply studied against length at the optimum operating wavelength 1550 nm for proposed and previous models. Reflectivity transmission coefficient are also clarified versus a with central nm, Δ n = 0.003 30 mm. In same way, reflectivity outlined relative refractive difference step The LPFBG can be...
Abstract High-speed single-mode fiber-optic communication systems have been presented based on various hybrid multiplexing schemes. Refractive index step and silica-doped germanium percentage parameters are also preserved during their technological boundaries of attention. It is noticed that the connect design suffer more nonlinearity with number connects. Two different propagation techniques used to investigate transmitted data rates as a criterion enhance system performance. The first...
Abstract This study clarifies the comparison between hybrid all optical fiber amplifiers in single-stage and multi-stage amplification. EDFA/Raman, Raman/EDFA/Raman, EDFA/Raman/EDFA configurations are employed for upgrading communication systems. Single-stage Raman very better performance than EDFA amplifier. Multi-stage Raman/EDFA/Raman also outlines other configuration up to 475 km distance. amplification has outlined maxi. Q factor 218.392 250 distance 11.937 propagation range. So...
The creation of the Internet Things (IoT), along with latest developments in wearable technology, has provided new opportunities human activity recognition (HAR). modern smartwatch offers potential for data from sensors to be relayed novel IoT platforms, which allow constant tracking and monitoring movement behavior. Recently, traditional techniques have done research advance by choosing machine learning methods such as artificial neural network, decision tree, support vector machine, naive...
In this research paper, human blood sensor based on dual core symmetric photonic crystal fiber (DC-S-PCF) is proposed. It possible by infiltrating samples in the provided elliptical hole of structure. As structure exerts different polarization and coupling principle, sensitivity design achieved. a result, it gives 13.5 nm/g/dL for X-polarized mode 5.96 Y-polarized at 5 cm length proposed sensor.
Abstract This work outlines technical specifications of the undersea fiber optic communication channel bandwidth, capacity with taken into account maximum and minimum extended cost in presence amplifiers stations. The number amplification stage are addressed based on amplifier distance to strength light signal water depth after 5 km distance. is estimated at different surface water. Minimum input power required detectable received adjusted ensure high data rates submarine cable systems under...
Abstract This paper has simulated the pump laser automatic signal control for erbium-doped fiber amplifier gain, noise figure, and output spectral power. Signal gain figure are deeply studied in relation to power variations at operating pumping wavelengths of 980 nm 1,480 previous proposed models. Similar study light ratio, level maximum Q factor also versus EDFA length 500 mW different wavelength by using model. The obtained results better a than nm. optimum is 5 m, which gives performance...
Abstract The work has simulated different order Gaussian pulses effects on the high data rate fiber communication channel and optical receiver sensitivity with/without self-phase modulation (SPM). light signal per noise ratio, total dispersion coefficient after are measured at pulses. Receiver maximum Q -factor also for an transmission rates As well as Soliton peak power is SPM effects. It observed that system performance degraded over 100 Gb/s 50 km distance especially in presence of...
<p>There is no doubt that radiation has many side effects in our lives, so goal this study to reduce use of the diagnosis tooth caries, and order achieve we used field optical fiber detection some diseases associated with oral dental medicine. This was accomplished by shedding light on teeth, be diagnosed creating an image allows doctor examine them determine whether there are caries or any root problems. The principle also detect cancer, fractures, cracks bones. us early method saves...
Abstract We propose a new system of an attosecond pulse generation by using the integrated nonlinear microring devices. A soliton light with wavelength 1550 nm is entered into multistage resonators, where ring radii recent device product are within range from 5 to 10 microns. Results obtained have shown that ultrashort width in attoscale regime and beyond can be easily generated. When input peak power 12 W applied system, generated 50 achieved. © 2008 Wiley Periodicals, Inc. Microwave Opt...
In this paper, we have derived and presented the dynamic behavior of dark-bright soliton collision within modified add/drop filter, which it is known as PANDA ring resonator. By using conversion control, obtained outputs states can be used to form random binary codes, available for communication security application. Results shown that codes formed by polarized light components, whereas retrieved (decoded) signals. The switching time 12.8 ns noted.
A novel system of a simultaneous short-wave and millimeter-wave generation using soliton pulse within nano-waveguide is proposed, whereas the broad spectrum optical output can be generated. By suitable parameters, for instance, input power, coupling coefficients, ring radii, signals simultaneously generated filtered in single system. Such consists two microring resonators nanoring resonator that integrated to Initially, large bandwidth signal by Kerr-type nonlinear medium, with or wavelength...