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256 articles for “amplification”
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Comparative Analysis of Power Penalty versus Crosstalk in Optical Active Network Components like Erbium Doped Fiber Amplifier, Raman Amplifier and Semiconductor Optical Amplifier
Abstract: AbstractOptical amplifiers boost the power of optical system without optoelectronics (O-E-O) conversion. The optical amplification process is accompanied by Amplified Spontaneous Emission (ASE) noise that accumulates along the transmission line and degrades the optical signal to noise ratio (OSNR). Intensity modulation in one channel causes crosstalk in the other channel via the change of the complex refractive index in the amplifier. In this paper, authors tried to calculate and compare …
Published in Trends in Opto-electro & Optical Communication · Vol. 3, Issue 1, 2013 · pp. 1–10 Read article
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Evaluation of OTA Amplifier Using EEG Signals
Abstract: AbstractOver the last few years, there has been a tremendous exploration in VLSI industries in response to scaling trends towards deep submicron technology. Demand for low power and efficient amplification are rising in day-to-day life. In the process of scaling the CMOS nanometer demand low supply, which is helped to design digital circuit realization at very low power consumption. But it is not valid for analog circuit realization. The related …
Published in Trends in Opto-electro & Optical Communication · Vol. 10, Issue 2, 2020 · pp. 5–14 Read article
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Investigation on Open Loop Position Control of Amplified Piezoactuator
Abstract: Amplified piezoelectric actuators (APAs) consist of stacked piezoelectric actuators inside a flexural mechanical amplifier which helps in amplifying the displacements of the piezostacks in static and dynamic conditions. Accounting for their precision movement and dynamic characteristics, these actuators are extensively used in micropositioning, active damping, and microactuation applications. In this paper, FEM analysis of mechanical flexural amplifier of APA230L piezoactuator was performed to estimate its stiffness in the horizontal direction …
Published in Journal of Mechatronics and Automation · Vol. 2, Issue 1, 2015 · pp. 16–24 Read article
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Design and Analysis of Two Stage Fully Differential Telescopic Operational Amplifier and Two Stage Fully Differential Folded Cascode Operational Amplifier
Abstract: This paper presents a design methodology of a two stage fully differential telescopic operational amplifier. Similar analysis is carried out for the two stage folded cascode operational amplifier and results are compared at 180 nm technology node. Here effort is made to make the unity gain frequency and the slew rate same of both the respective two stage amplifiers. The purpose of such an effort is to carry out a …
Published in Recent Trends in Electronics Communication Systems · Vol. 2, Issue 2, 2015 · pp. 7–19 Read article
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Amplifier-based High Temperature Measurement and Control System
Abstract: Thermocouple is widely used sensor for temperature measurement now a days because of its unique characteristics in terms of wide temperature range, stability, durability, and the different types that are compatible according to temperature applications. But there are many challenges like signal conditioning and absolute control that needs to be resolved while designing with them. The paper describes the solution for signal conditioning using a single analog IC AD8495 that …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 8, Issue 1, 2020 · pp. 25–36 Read article
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Analysis of Operational Transconductance Amplifier using 180 nm Technology CMOS Process
Abstract: Today, it is laborious to design an amplifier with low power utilization, high gain and high bandwidth. ICs industries are growing very fast and it is challenging for day by day growth to provide a better design with all accuracy. It is advisable to design an amplifier with an ideal way. Amplifiers are most essential unit of the analog circuitry; differential amplifier performs very well as input amplifier. Transfer characteristic …
Published in Journal of Microelectronics and Solid State Devices · Vol. 1, Issue 1, 2015 · pp. 10–13 Read article
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Performance Analysis of EDFA Amplifier for Different Ion Density and Doping Radius
Abstract: AbstractIn communication sector, optical communication is playing a vital role since many years. Efficient transmission of data through optical fiber is one of the major concerns now days to the researchers. Several optical instruments are used to get efficient output after transmission. There are many kinds of optical amplifier. EDFA (Erbium Doped Fiber Amplifier) amplifier is one of the mostly used amplifiers in the recent optical communication system. This paper …
Published in Trends in Opto-electro & Optical Communication · Vol. 5, Issue 3, 2015 · pp. 16–32 Read article
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Implementation of Sense Amplifier-based D Flip-Flop using 0.25 µm and 0.18 µm Technology
Abstract: The traditional flip-flops and latches suffer from the large delays and the race conditions. This paper describes a new approach to the D flip-flop design using the sense amplifier. The previous efforts in the same direction made at the 0.25 µm technology exhibit improvements in clock-to-output delay and power dissipation with respect to recently proposed high-speed flip-flops. The paper discusses the flip-flop at 0.18 µm technology. The output latch of …
Published in Journal of Electronic Design Technology · Vol. 4, Issue 3, 2013 · pp. 10–13 Read article
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Recent Advances of Distributed Optical Fiber Raman Amplifiers in Ultra Wide Wavelength Division Multiplexing Telecommunication Networks
Abstract: ABSTRACTRecently, many research works have been focused on the fiber optic devices for optical communication systems. One of the main interests is on the optical amplifiers to boost a weak signal in the communication systems. In order to overcome the limitations imposed by electrical regeneration, a means of optical amplification was sought. The competing technology emerged: the first was Raman amplification. One reason was that the optical pump powers required …
Published in Journal of Communication Engineering & Systems · Vol. 1, Issue 1-3, 2011 · pp. 44–59 Read article
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Comparative Study of (Operational Transconductance Amplifier) OTA to Design Low Pass Filter
Abstract: Basic building block to design an analog circuit is amplifier and it is used for such applications like analog to digital and digital to analog converter, sensor network and many more. Amplifier with lofty gain and high bandwidth will increase the efficiency of design. Present time is talking about development of VLSI technology and everything is related to size of transistor and decreasing power supply in a circuit. Operational transconductance …
Published in Journal of VLSI Design Tools and Technology · Vol. 5, Issue 2, 2015 · pp. 11–15 Read article
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A study on CMOS Operational Amplifier in Sensor Development
Abstract: CMOS operational amplifiers (op-amps) have emerged as pivotal components in modern sensor development, enabling the amplification and conditioning of weak signals with high precision and efficiency. Their inherent advantages low power consumption, compact size, and seamless integration with digital circuits make them ideal for advancing miniaturized, battery-powered sensor systems in fields ranging from biomedical devices to IoT networks. By delivering precision, power efficiency, and integration, CMOS op-amps are not just …
Published in Journal of VLSI Design Tools and Technology · Vol. 16, Issue 1, 2026 · pp. 01–07 Read article
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An Innovative Approach of the Analysis of the Low Noise of a CMOS-Based Amplifier for Analog Signal-based Applications
Abstract: A low-noise amplifier (LNA), which is based on the cascode feedback methodology, has been commonly used for various wireless protocol-based network applications nowadays. It is so because this topology ensures that the low-noise amplifier (LNA) can achieve quite a high performance and thus, provides a high qualitative output. This amplifier is operated with a low voltage supply in the range of few volts that requires that the impedances of the …
Published in Journal of VLSI Design Tools and Technology · Vol. 2, Issue 1-2-3, 2012 · pp. 7–15 Read article
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Design and Performance Investigation with Erbium-Ytterbium Co- Doped Fiber Amplifier Link
Abstract: AbstractLight wave propagation through optical fiber suffers from numerous linear and nonlinear effects. To compensate it techniques have been adopted. Amongst optical fiber amplifiers doped with ions are one of the key tools to enhance spectral efficiency further. In this vision, an optical design with EDFA and Erbium ytterbium co-doped fiber amplifier is presented for the single channel. The design’s performance has been investigated for numerous optical parameters for instance …
Published in Recent Trends in Sensor Research & Technology · Vol. 4, Issue 2, 2017 · pp. 6–13 Read article
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Novel Effect of Gate Length on the Electrical Characteristics of Nanoelectronic Double-Heterojunction HEMTs with the Circuit Symbols and Load Line to Configure the Common-Source Amplifiers in Analog Electronics
Abstract: Total 3566 individual simulation-outputs are reported in this work. The linear region and saturation region in each drain characteristic curve of nanoelectronic AlGaN/GaN/AlGaN double-heterojunction high electron mobility transistors (HEMTs) are clearly shown. In this work, we have obtained the maximum drain current of 389 mA using these HEMTs. The investigations on the dependence of drain current with respect to gate length in these double-heterojunction HEMTs is a novelty of this …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 5, Issue 2, 2017 · pp. 8–18 Read article
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Design of Low Noise Transimpedance Amplifier using Multiple Feedback filter Topology
Abstract: This study presents the highly linear and low noise transimpedance amplifier (TIA) based on CMOS inverter as an amplifier within multiple feedback (MPFB) filter topology. Absence of complex analog circuitry and compatibility with widespread digital CMOS processes highlight this TIA topology asthe best choice in signal conditioning chains approaching analog-to-digital converters (ADCs). Special attention has been given to the TIA stability and compensation networks. Using dedicated low-dropout (LDO) regulator, the …
Published in Journal of Electronic Design Technology · Vol. 13, Issue 1, 2022 · pp. 25–30 Read article
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Assessment of Liquefaction Potential Index for Sylhet City considering Maximum and Average Amplification Factor
Abstract: Soil liquefaction often occurs in saturated or partially saturated silty or sandy soil when an earthquake generates dynamic cyclic stress in the soil mass, reducing shear strength and stiffness. This study aims to assess the seismic soil liquefaction hazard potential for Sylhet City using shear wave velocity profiles of 49 boreholes. Factor of Safety (FOS) was evaluated taking into account shear wave velocity and maximum intensity of surface acceleration corresponding …
Published in Journal of Geotechnical Engineering · Vol. 8, Issue 2, 2021 · pp. 1–12 Read article
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Next-Generation mRNA Therapeutics: Self-Amplifying, Thermostable and Personalized mRNA Vaccines in the Era of Precision Medicine
Abstract: Messenger RNA (mRNA) technology has brought a major change in modern medicine, especially after its successful use in COVID-19 vaccines. However, early mRNA vaccines faced several problems such as low stability, strict cold storage requirements, and lack of personalized treatment. To overcome these challenges, next-generation mRNA technologies have been developed, including self-amplifying mRNA (saRNA), thermostable mRNA vaccines, and personalized mRNA vaccines. This article discusses the development of mRNA therapeutics, the …
Published in International Journal of Vaccines · Vol. 3, Issue 1, 2026 · pp. 38–54 Read article
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Noise Analysis of Single-Ended Input Differential Amplifier (MOS) using Stochastic Differential Equation
Abstract: AbstractIn this paper, we do the noise analysis of single-ended input differential amplifier (MOS). Stochastic differential equations are used to analyse the effect of extrinsic noise. We use time domain method and use SDE (Stochastic Differential Equation) to determine autocorrelation function for the output process. Mean and variance of the output noise is obtained. This analysis helps to get circuit with better noise performance. The analysis compares the noise performance …
Published in Journal of Microwave Engineering and Technologies · Vol. 4, Issue 3, 2017 · pp. 19–25 Read article
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BER Analysis in Optical Fiber Communication System using Different Optical Amplifiers
Abstract: AbstractThis paper describes the simulation study of losses that occurs in the optical fiber communication system with and without optical amplifiers. The analysis is done in the OPTISYSTEM 16.0 software on the basis of Q-factor, BER and eye height for different optical amplifiers which are Erbium Doped Fiber Amplifier (EDFA) and Semiconductor Optical Amplifier (SOA)Keywords: BER, eye diagram, Q-factor, eye height, SOA, EDFA, OPTISYSTEM 16.0Cite this ArticleArpitha G.A. BER Analysis …
Published in Trends in Opto-electro & Optical Communication · Vol. 9, Issue 3, 2019 · pp. 33–42 Read article
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Performance Investigation of Hybrid Raman- EDFA amplifier in WDM network
Abstract: A composite layout of Erbium-Doped-Fiber amplifier(EDFA) and Raman amplifier is put forward to retrieve a better performance in terms of gain, noise figure and flat gain. It is based on the optimal configuration of parameters of a singly based Raman amplifier and EDFA. The leading parameter for both the amplification has been analysed with respect to its input signal, power, pump power and their fiber length although the best erbium …
Published in Journal of Advances in Shell Programming · Vol. 5, Issue 1, 2018 · pp. 20–25 Read article