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108 articles for “Diodes”
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Effects of Variation of Injection Current on Characteristics of a 1550 nm Semiconductor Laser
Abstract: AbstractThis work represents the prototype of both the analytical and the simulation based study on high speed communication system particularly high speed data transmission through optical fiber using 1550 nm InGaAsP/InP laser. In recent years, Vertical Cavity Surface Emitting Lasers (VCSELs) are prerequisites for future ultrahigh data-rate systems. This paper represents an overview on high speed performance of the 1550 nm VCSEL. Using MATLAB simulation tool the characteristics of the …
Published in Trends in Opto-electro & Optical Communication · Vol. 3, Issue 2, 2013 · pp. 1–6 Read article
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Modeling of Photovoltaic Module with MATLAB/Simulink
Abstract: Abstract The generation of electrical energy from sunlight is achieved with an interface called photovoltaic (PV) module. The PV module plays a vital role for extracting electrical energy from sunlight, thus its accuracy is most important parameter for consideration while developing mathematical model of PV module. For higher accuracy the single diode model with series and parallel resistors combination is used. For simulating this device in MATLAB/Simulink we need weather …
Published in Trends in Opto-electro & Optical Communication · Vol. 9, Issue 1, 2019 · pp. 38–45 Read article
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Electroluminescence
Abstract: Electroluminescence (EL) is a kind of luminescence which is an optical and electrical phenomenon in which light is emitted by certain materials due to the passage of an electric current or a strong electric field. The mechanism behind electroluminescence is the radiative recombination, or spontaneous emission. The electrons get excited and release their energy as photons. The holes and electrons before recombining are separated either by doping the given material …
Published in Trends in Opto-electro & Optical Communication · Vol. 11, Issue 1, 2021 · pp. 13–18 Read article
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A Comparative Analysis of Light Fidelity (Li-Fi) with other communication Mode
Abstract: Li-Fi stands for Light Fidelity. The development is relatively new, and scientists. The portable optical networking system known as Li-Fi uses light emitting diodes (LEDs) to transport data. The term Li-Fi describes the usage of visible light interactions, or VLC, technological advances, which functions much like Wi-Fi in that it makes use of light as an interface to deliver high-speed communication. The focus of this essay is Li-Fi, including its …
Published in Trends in Opto-electro & Optical Communication · Vol. 12, Issue 3, 2022 · pp. 24–30 Read article
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Collision Avoidance Using Li-Fi Based Inter Vehicle Communication
Abstract: Most countries in the world have an alarming record in number of death/disability due to tremendous number of accidents. Even though road transport in India is very prevalent for various reasons, the rate of road-accidents and fatality in the country is very high. Accidents occur due to the unawareness of the public regarding the same. Researchers have observed that majority of the accidents where solely due to factors involving the …
Published in Journal Of Network security · Vol. 6, Issue 2, 2018 · pp. 22–26 Read article
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Temperature Rise within the Pulp Chamber During Curing Resin based Composite By LED and QTH Light Curing Units: An In vitro Study
Abstract: The present study was undertaken to evaluate the change in temperature within the pulp space during curing of composite resins using light emitting diode (LED) and quartz tungsten halogen curing units (QTH) under varying remaining dentin thickness. 60 human mandibular molars were taken and distal root of each sample was resected and the thermocouple probe was placed in the roof of the pulp space. The root was immersed in a …
Published in Research and Reviews: A Journal of Dentistry · Vol. 3, Issue 3, 2012 · pp. 14–22 Read article
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Android Based Heart Rate Variability and Body Temperature Monitoring System
Abstract: The inventions of the new technologies in the medical field are needed to improve the health system. There are many existing technologies which help in prevention of disease and regulation of patient health and have empowered the evolution of fields such as health-care monitoring. This research work presents the heart rate monitor, body temperature measurement, displaying and data-collecting at android mobile device. Heart rate, heart rate variability and temperature of …
Published in Research and Reviews : A Journal of Medical Science and Technology · Vol. 6, Issue 3, 2017 · pp. 11–15 Read article
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Unified Mathematical Framework for Semiconductor Devices, Junction Dynamics, and Circuit Analysis
Abstract: Semiconductor devices form the fundamental building blocks of modern electronic and integrated circuit systems, where their electrical behavior is governed by coupled carrier transport, electrostatic, and circuit-level phenomena. This work presents a unified mathematical framework for modeling semiconductor devices, junction dynamics, and their interaction with electronic circuits. The formulation integrates fundamental semiconductor relations, carrier concentration, drift–diffusion transport, Poisson’s equation, continuity equations, PN-junction behavior, diode characteristics, bipolar junction transistor operation, and …
Published in Journal of Semiconductor Devices and Circuits · Vol. 13, Issue 2, 2026 · pp. 37–47 Read article