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Journal articles on the topic 'Multi-core amplifier'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Tiwari, Nitendra kumar. "Low Power Reduction Techniques Implementation and Analysis in Sense Amplifier Circuit Configurations." Journal of Futuristic Sciences and Applications 5, no. 2 (2022): 31–37. http://dx.doi.org/10.51976/jfsa.522205.

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MTCMOS (Multi-Threshold CMOS), sleepy stack, sleepy keeper, and footer stack are examples of low power saving techniques incorporated into the core gpdk 90nm technology papers used in the proposed study using Cadence. The main focus of these tests is the power consumption of various sense amplifier circuits. The simulation results show that the charge-transfer sense amplifier uses much less energy than voltage and current sense amplifiers. The present mode detecting amplifier’s power consumption can be decreased by up to 98 percent by using MTCMOS technology.

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2

Elkin, N. N., A. P. Napartovich, V. N. Troshchieva, and D. V. Vysotsky. "Mode competition in multi-core fiber amplifier." Optics Communications 277, no. 2 (2007): 390–96. http://dx.doi.org/10.1016/j.optcom.2007.05.029.

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3

Sakthivel, Erulappan, Veluchamy Malathi, and Muruganantham Arunraja. "A New Simulator Based on Multi Core Processor with Improved Sense Amplifier." Journal of Circuits, Systems and Computers 24, no. 09 (2015): 1550141. http://dx.doi.org/10.1142/s0218126615501418.

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In recent days, network-on-chip (NoC) researchers focus mainly on the area reduction and low power consumption both in architectural and algorithmic approach. To achieve low power and high performance in NoC architecture, sense amplifiers (SAs) introduced which can consume less power under various traffic conditions. In order to analyze the performance of architectural NoC design before fabrication level, the new simulator is developed based on multi core processor with improved sense amplifier (MCPSA) in this work. The MCPSA simulator provides user, the flexibility of incorporating various tr

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4

Ono, H., T. Mizuno, H. Takara, et al. "Inter‐core crosstalk measurement in multi‐core fibre amplifier using multiple intensity tones." Electronics Letters 50, no. 14 (2014): 1009–10. http://dx.doi.org/10.1049/el.2014.1373.

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5

Ono, H., M. Yamada, K. Takenaga, et al. "Amplification method for crosstalk reduction in multi‐core fibre amplifier." Electronics Letters 49, no. 2 (2013): 138–40. http://dx.doi.org/10.1049/el.2012.4307.

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6

Yang, Na, Xuedian Zhang, Xuejing Liu, et al. "Multi-OAM erbium-doped fiber amplifier with low inter-core crosstalk." Optical Fiber Technology 93 (September 2025): 104274. https://doi.org/10.1016/j.yofte.2025.104274.

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7

Ono, Hirotaka, Yutaka Miyamoto, Takayuki Mizuno, and Makoto Yamada. "Gain Control in Multi-Core Erbium-Doped Fiber Amplifier With Cladding and Core Hybrid Pumping." Journal of Lightwave Technology 37, no. 13 (2019): 3365–72. http://dx.doi.org/10.1109/jlt.2019.2915939.

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8

Ono, Hirotaka, Makoto Yamada, and Hiroji Masuda. "Pump Power Reduction in Optical Fiber Amplifier for WDM-Interleaved Multi-Core/Multi-Fiber System." IEEE Photonics Technology Letters 29, no. 14 (2017): 1163–66. http://dx.doi.org/10.1109/lpt.2017.2707470.

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9

Fang Xiaohui, 方晓惠, 胡明列 Hu Minglie, 刘博文 Liu Bowen, 柴路 Chai Lu, and 王清月 Wang Qingyue. "Hundreds of Megawatts Peak Power Multi-Core Photonic Crystal Fiber Laser Amplifier." Chinese Journal of Lasers 37, no. 9 (2010): 2366–70. http://dx.doi.org/10.3788/cjl20103709.2366.

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10

Suzuki, S., S. Jiang, N. Peyghambarian, and A. Chavez-Pirson. "Image amplifier based on Yb^3+-doped multi-core phosphate optical fiber." Optics Express 15, no. 7 (2007): 3759. http://dx.doi.org/10.1364/oe.15.003759.

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11

Han, Fang, Xuzhi Liu, Chao Wang, et al. "A Multi-Band LNA Covering 17–38 GHz in 45 nm CMOS SOI." Electronics 11, no. 19 (2022): 3255. http://dx.doi.org/10.3390/electronics11193255.

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This paper presents a multi-band low-noise amplifier (LNA) in the 45-nm CMOS silicon-on-insulator (SOI) process. The LNA consists of three stages, with the differential cascode amplifier as the core structure. The first stage is mainly responsible for input matching to ensure favourable noise characteristics and bandwidth, while the subsequent stages increase the gain. Moreover, the LNA utilizes baluns for input/output and interstage impedance matching. Switch capacitances are added to switch the three operating bands of the LNA, which cover 17–38 GHz overall. Measurement results show that the

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12

Okita, H., F. Tamura, M. Yamamoto, et al. "Design studies on a high-power wide-band RF combiner for consolidation of the driver amplifier of the J-PARC RCS." Journal of Physics: Conference Series 2420, no. 1 (2023): 012092. http://dx.doi.org/10.1088/1742-6596/2420/1/012092.

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Abstract A power upgrade of the existing 8-kW solid-state driver amplifier is required for the acceleration of high intensity proton beams on the J-PARC 3-GeV Rapid Cycling Synchrotron. The development of a 25-kW amplifier with gallium nitride (GaN) HEMTs, based on 6.4-kW modules is ongoing. The combiner is a key component to achieve such a high output power over the wide bandwidth required for multi-harmonic RF operation. This paper presents the preliminary design of the combiner. The circuit simulation setup and results, including the realistic magnetic core characteristics and frequency res

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13

Dyachenko, Petr P., Anatoly V. Zrodnikov, Oleg F. Kukharchuk, and Alexey A. Suvorov. "Problem of nuclear-laser power engineering and methods of their solution." Nuclear Energy and Technology 5, no. (3) (2019): 257–63. https://doi.org/10.3897/nucet.5.46381.

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The concept of a high power reactor-laser system based on a nuclear pumped optical quantum amplifier (OKUYaN) was formulated at IPPE in the mid-1980-ies. The idea amounted to the use of wide-aperture OKUYaN as an amplifier within the already well-known "master laser – two-pass amplifier with phase conjugation" scheme. The structure of such an amplifier includes a system of two neutron-coupled units – an ignition reactor (RB) and a nuclear pumped laser amplifier (LB). The ignition unit is a compact multi-core pulsed fast neutron reactor. The laser amplifier unit operates on thermal neutrons and

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14

Hu, Chuanhao, Chengyang Li, Miao Deng та ін. "Development of a novel high-performance readout circuit for α and β energy spectrum measurement". Journal of Instrumentation 17, № 10 (2022): P10039. http://dx.doi.org/10.1088/1748-0221/17/10/p10039.

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Abstract A novel high-performance readout circuit with multi-Junction field-effect transistors (Multi-JFETs) and high-speed integrated operational amplifiers as the core was designed. By coupling the circuit to a large area passivated ion injection planar silicon (PIPS) detector, excellent α and β energy spectrum can be obtained. Therefore, it can be applied to radon monitor, radioactive aerosol monitor and other equipment to achieve high precision information on radioactive substances in the environment. The input stage of the circuit adopts the parallel structure of JFETs to achieve the matc

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15

Rapp, Lutz, André Sandmann, Benedikt Beck, and Bernhard Schmauss. "Impact of Inter-Core Loss and Gain Equalization on Transmission Performance in Multi-Core Systems." IEEE Photonics Technology Letters 37, no. 13 (2025): 713–16. https://doi.org/10.1109/LPT.2025.3562016.

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Hybrid pumping schemes allow for equalizing transmission performance across the cores of a multi-core fiber based transmission system in the presence of fiber loss variations between the cores and core-dependent gain of the involved multi-mode pumped optical amplifiers. Power equalization by distributed Raman amplification comes with improved noise characteristics, but leads to reduced signal-to-interference ratio due to increased crosstalk. In an experimental setup, compensating loss in the outer cores of a 50km long trench-assisted 7-core fiber with this approach is shown to lead to an OSNR

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Zhu Fuxi, 朱福喜, 裴丽 Pei Li, 王建帅 Wang Jianshuai та ін. "多芯超模光纤放大器增益均衡设计（内封底文章）". Infrared and Laser Engineering 53, № 1 (2024): 20230504. http://dx.doi.org/10.3788/irla20230504.

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17

Bao, Kuan, and Xiang Ning Fan. "An ESD Protected Wideband CMOS Low Noise Amplifier Employing Active Feedback Technique." Advanced Materials Research 403-408 (November 2011): 2809–13. http://dx.doi.org/10.4028/www.scientific.net/amr.403-408.2809.

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This paper presents a wideband low noise amplifier (LNA) for multi-standard radio applications. The low noise characteristic and input matching are simultaneously achieved by active-feedback technique. Bond-wire inductors and electrostatic devices (ESDs) are co-designed to improve the chip performance. Implemented in 0.18-μm CMOS process, the core size of the fully integrated LNA circuits is 535 μm×425 μm without any passive on-chip inductor. The simulated gain and the minimal noise figure of the CMOS LNA are 17.5 dB and 2.0 dB, respectively. The LNA achieves a -3dB bandwidth of 3.1 GHz. And t

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18

Yao, Cheng-Kai, Amare Mulatie Dehnaw, and Peng-Chun Peng. "A Multi-Format, Multi-Wavelength Erbium-Doped Fiber Ring Laser Using a Tunable Delay Line Interferometer." Applied Sciences 14, no. 16 (2024): 6933. http://dx.doi.org/10.3390/app14166933.

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This work demonstrates the use of an erbium-doped fiber amplifier (EDFA), a tunable bandpass filter (TBF), and a tunable delay line interferometer (TDLI) to form a ring laser that produces multi-format, multi-wavelength laser beams. The TDLI serves as the core of the proposed laser generation system. TDLI harnesses the weak Fabry–Pérot (FP) interferences generated by its built-in 50/50 beamsplitter (BS) with unalterable filtering characteristics and the interferences with free spectral range (FSR) adjustable from each of its two outputs with nearly complementary phases to superpose and generat

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19

Pei, Li, Yanbiao Chang, Jianshuai Wang, et al. "Fiber Residual Stress Effects on Modal Gain Equalization of Few-Mode Fiber Amplifier." Sensors 23, no. 5 (2023): 2574. http://dx.doi.org/10.3390/s23052574.

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The modal gain equalization (MGE) of few-mode fiber amplifiers (FMFAs) ensures the stability of signal transmission. MGE mainly relies on the multi-step refractive index (RI) and doping profile of few-mode erbium-doped fibers (FM-EDFs). However, complex RI and doping profiles lead to uncontrollable residual stress variations in fiber fabrication. Variable residual stress apparently affects MGE due to its impacts on the RI. So, this paper focuses on the residual stress effects on MGE. The residual stress distributions of passive and active FMFs were measured using a self-constructed residual st

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20

Feng, Ting, Jian De Wu, Xu Yi Yuan, Yu Gang Fan, and Xiao Dong Wang. "Design and Implementation of Valve Failure Signal Multi-Channel Acquisition System Based on Acoustic Emission and Pipeline." Advanced Materials Research 460 (February 2012): 281–85. http://dx.doi.org/10.4028/www.scientific.net/amr.460.281.

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Designed and implemented acoustic emission signal acquisition system core with microprocessor STM32F103RB. Acquisition system included high sensitivity acoustic emission sensors: PXR20; signal conditioning for acoustic emission, used high-speed ADC AD9225 for A/D conversion; used FIFO module for data buffer; used USB to serial port technology for data communications and transmissions. Central control unit design included gain control of amplifier circuit, clock control of external AD-chip and data cache chip, data acquisition port control, data output port control. Experimental results show th

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21

Dyachenko, Petr P., Anatoly V. Zrodnikov, Oleg F. Kukharchuk, and Alexey A. Suvorov. "Problem of nuclear-laser power engineering and methods of their solution." Nuclear Energy and Technology 5, no. 3 (2019): 257–63. http://dx.doi.org/10.3897/nucet.5.46381.

Full text

Abstract:

The concept of a high power reactor-laser system based on a nuclear pumped optical quantum amplifier (OKUYaN) was formulated at IPPE in the mid-1980-ies. The idea amounted to the use of wide-aperture OKUYaN as an amplifier within the already well-known “master laser – two-pass amplifier with phase conjugation” scheme. The structure of such an amplifier includes a system of two neutron-coupled units – an ignition reactor (RB) and a nuclear pumped laser amplifier (LB). The ignition unit is a compact multi-core pulsed fast neutron reactor. The laser amplifier unit operates on thermal neutrons and

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22

Asl, S. Ali Hosseini, Reza E. Rad, Behnam S. Rikan, et al. "A 1.8–2.7 GHz Triple-Band Low Noise Amplifier with 31.5 dB Dynamic Range of Power Gain and Adaptive Power Consumption for LTE Application." Sensors 22, no. 11 (2022): 4039. http://dx.doi.org/10.3390/s22114039.

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This paper presents a multi-gain radio frequency (RF) front-end low noise amplifier (LNA) utilizing a multi-core based on the source degeneration topology. The LNA can cover a wide range of input and output frequency matching by using a receiver (RX) switch at the input and a capacitor bank at the output of the LNA. In the proposed architecture here, to avoid the saturation of RX chain, 12 gain steps including positive, 0 dB, and negative power gains are controlled by a mobile industry processor interface (MIPI). The multi-core architecture offers the ability to control the power consumption o

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23

Gao, Chun Xian, Hong Xing Yang, Fei Yuan, and En Cheng. "Underwater Acoustic Communication System Based on MC-MFSK." Applied Mechanics and Materials 556-562 (May 2014): 4897–900. http://dx.doi.org/10.4028/www.scientific.net/amm.556-562.4897.

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For the time-space-frequency varying shallow water acoustic channel, we designed a multi-carrier FH-MFSK system, so that it can be reliably transmitted over these channels. This paper also design of a wake-up signal, and synchronization obtain information frame structure, the simulation result of the algorithm is presented. In the core of DSPC6747 chip, with class D power amplifier, we designed a reasonable layout, stable and reliable hardware circuit. By simulation, adding noise experiments, and water pool experiments verify the good performance of the system, a very low bit error rate (BER)

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24

Li, Li, and Guo Fu Yin. "The Design of High-Speed Synchronization Data Collection Node Machine for Multi-Chip CCD Measurement." Applied Mechanics and Materials 427-429 (September 2013): 702–7. http://dx.doi.org/10.4028/www.scientific.net/amm.427-429.702.

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The high-speed synchronous node machine is developed for collecting high-precision and synchronous data from multi-chip CCD to measure the dynamic object with large field coverage by Visual technology. Node machine contains core, A/D converter module and Ethernet communication module. The FPGA of 600,000 gates which have a built-in FLASH chip is used as the core, which provides work-frequency of 10MHz and drive pulse for multi-chip CCD. A/D converter module configures the differential amplifier and builds 3-way 30MHz 16-bit A / D converter. 10/100M Ethernet protocol stack controller and RJ45 i

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Xiang, Ke Feng, and Li Li. "The Design of High-Speed Synchronization Data Collection Node Machine for Multi-Chip CCD Measurement." Advanced Materials Research 542-543 (June 2012): 717–22. http://dx.doi.org/10.4028/www.scientific.net/amr.542-543.717.

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The high-speed synchronous node machine is developed for collecting high-precision and synchronous data from multi-chip CCD to measure the dynamic object with large field coverage by Visual technology. Node machine contains core, A/D converter module and Ethernet communication module. The FPGA of 600,000 gates which have a built-in FLASH chip is used as the core, which provides work-frequency of 10MHz and drive pulse for multi-chip CCD. A/D converter module configures the differential amplifier and builds 3-way 30MHz 16-bit A / D converter. 10/100M Ethernet protocol stack controller and RJ45 i

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26

Song, Ickhyun, Gyungtae Ryu, Seung Hwan Jung, John D. Cressler, and Moon-Kyu Cho. "Wideband SiGe-HBT Low-Noise Amplifier with Resistive Feedback and Shunt Peaking." Sensors 23, no. 15 (2023): 6745. http://dx.doi.org/10.3390/s23156745.

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In this work, the design of a wideband low-noise amplifier (LNA) using a resistive feedback network is proposed for potential multi-band sensing, communication, and radar applications. For achieving wide operational bandwidth and flat in-band characteristics simultaneously, the proposed LNA employs a variety of circuit design techniques, including a voltage–current (shunt–shunt) negative feedback configuration, inductive emitter degeneration, a main branch with an added cascode stage, and the shunt-peaking technique. The use of a feedback network and emitter degeneration provides broadened tra

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27

Zhou, Wei Wei, Ji Ye Huang, Ming Yu Gao, Zhi Wei He, and Bu Sen Cai. "Design and Realization of CAN-Based Main Control System of Multi-Station Meter Testing Equipment." Applied Mechanics and Materials 719-720 (January 2015): 411–16. http://dx.doi.org/10.4028/www.scientific.net/amm.719-720.411.

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In this paper, 0.05 grade three-phase main control system of multi-station meter testing equipment (MTE) is presented. This design is based on the S3C2440 core board as the control core, and the software is based on Windows CE(WINCE) embedded operating system. The device is displayed and controlled by 7-inch Touch Screen. The main control system communicate with the error instrument and PC through Controller Area Network (CAN) bus, and the largest number of error instruments can connect to CAN bus is 100. The main control system communicates through RS232 bus with three-phase signal source and

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28

Park, Somi, Sunkyung Lee, Bobin Seo, Dukyoo Jung, Seonhan Choi, and Sung-Min Park. "A Low-Noise CMOS Transimpedance-Limiting Amplifier for Dynamic Range Extension." Micromachines 16, no. 2 (2025): 153. https://doi.org/10.3390/mi16020153.

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This paper presents a low-noise CMOS transimpedance-limiting amplifier (CTLA) for application in LiDAR sensor systems. The proposed CTLA employs a dual-feedback architecture that combines the passive and active feedback mechanisms simultaneously, thereby enabling automatic limiting operations for input photocurrents exceeding 100 µApp (up to 1.06 mApp) without introducing signal distortions. This design methodology can eliminate the need for a power-hungry multi-stage limiting amplifier, hence significantly improving the power efficiency of LiDAR sensors. The practical implementation for this

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29

Vyas, Vishal. "Comparative Study and Design of High Performance Mixer." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 08, no. 01 (2024): 1–13. http://dx.doi.org/10.55041/ijsrem28375.

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In recent time the use of RF mixer has been increased greatly. Gilbert cell is widely used as core of the mixer because it provides high conversion gain, good port-to-port isolation and low even-order distortion. It is found that the linearity of mixer is very good for Multi-Tanh technique by incorporating multiple differential trans-conductance stage but it reaches to very low conversion gain whereas, use of current bleeding technique increase linearity and conversion gain of the mixer by adding current source to increase the bias current at the expense of power consumption. Since, CMOS techn

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30

Sobotta, Elena, Guido Belfiore, and Frank Ellinger. "Ultra compact multi-standard low-noise amplifiers in 28 nm CMOS with inductive peaking." International Journal of Microwave and Wireless Technologies 10, no. 1 (2017): 47–57. http://dx.doi.org/10.1017/s1759078717001076.

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This work presents the design of two compact multi-standard low-noise amplifier (LNA) in a 28 nm low-power bulk CMOS process. The transistor parameters were optimized by the gm/ID method taking into account the parasitics and the behavior of highly scaled transistors. To cover the industrial science medical (ISM)-bands around 2.4 and 5.8 GHz, the WLAN band as well as the Ku band a bandwidth enhancement is required. Two versions of LNAs, one with vertical inductors and one with active inductors, are implemented and verified by measurements. The noise figure (NF) exhibits 4.2 dB for the LNA with

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31

Inoue, A., T. Kashiwazaki, T. Yamashima, et al. "Toward a multi-core ultra-fast optical quantum processor: 43-GHz bandwidth real-time amplitude measurement of 5-dB squeezed light using modularized optical parametric amplifier with 5G technology." Applied Physics Letters 122, no. 10 (2023): 104001. http://dx.doi.org/10.1063/5.0137641.

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Continuous-variable optical quantum information processing, where quantum information is encoded in a traveling wave of light called a flying qubit, is a candidate for a practical quantum computer with high clock frequencies. Homodyne detectors for quadrature-phase amplitude measurements have been the major factor limiting the clock frequency. Here, we developed a real-time amplitude measurement method using a modular optical parametric amplifier (OPA) and a broadband balanced photodiode that is commercially used for coherent wavelength-division multiplexing telecommunication of the fifth-gene

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32

Choi, Kyung-Duk, SungHwan Paik, Kyung-Jin Lee, et al. "A 0.73 dB Multi-Gain Low Noise Amplifier Design with Fast Mode-Switching for 5G/4G Applications." Sensors 24, no. 24 (2024): 8082. https://doi.org/10.3390/s24248082.

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In this paper, a sub-1dB Low Noise Amplifier (LNA) with several gain modes, including amplification and attenuation modes required for the fifth and fourth generations (5G/4G) of mobile network applications, is proposed. Its current consumption is adaptive for every gain mode and varies to lower currents for lower amplifications due to the importance of current consumption for mobile network applications. The proposed LNA features an innovative architecture with a three-core input structure supporting multi-gain modes, achieving high gain and ultra-low noise performance. Additionally, the desi

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33

Öncü, Ahmet. "Design and prototype of a 60 GHz variable gain RF amplifier with 90 nm CMOS for multi-gigabit-rate close proximity point-to-point communications." Journal of Electrical Engineering 75, no. 3 (2024): 173–80. http://dx.doi.org/10.2478/jee-2024-0021.

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Abstract This paper presents the implementation of a low-power and variable-gain 60 GHz millimeter-wave CMOS Amplifier designed for short-range multi-gigabit close proximity point-to-point communications. The design uses coplanar wave transmission lines to achieve 50 Ω input and output matching. Realized in a 90 nm CMOS process, the variable-gain VGA exhibits power consumption ranging from 4.7 mW to 39.1 mW, with gains spanning from 5.5 dB to 12.4 dB at 60 GHz and a 3 dB bandwidth exceeding 14.4 GHz. Input and output return losses remain below –10 dB across the gain spectrum. Successful demons

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34

de Matos, C. J. S., and J. R. Taylor. "Multi-kilowatt, all-fiber integrated chirped-pulse amplification system yielding 40� pulse compression using air-core fiber and conventional erbium-doped fiber amplifier." Optics Express 12, no. 3 (2004): 405. http://dx.doi.org/10.1364/opex.12.000405.

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Zhao, Hezhang, Hu He, Shifeng Li, et al. "KlyH: 1D Disk Model-Based Large-Signal Simulation Software for Klystrons." Electronics 14, no. 11 (2025): 2223. https://doi.org/10.3390/electronics14112223.

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This paper presents KlyH, a new 1D (one-dimensional) large-signal simulation software for klystrons, designed to deliver efficient and accurate simulation and optimization tools. KlyH integrates a Fortran-based dynamic link library (DLL) as its computational core, which employs high-performance numerical algorithms to rapidly compute critical parameters such as efficiency, gain, and bandwidth. Compared with traditional 1D simulation tools, which often lack open interfaces and extensibility, KlyH is built with a modular and open architecture that supports seamless integration with advanced opti

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ZHAN, CHENCHANG, and WING-HUNG KI. "A LOW DROPOUT REGULATOR WITH LOW QUIESCENT CURRENT AND HIGH POWER SUPPLY REJECTION OVER WIDE RANGE OF FREQUENCY FOR SOC." Journal of Circuits, Systems and Computers 20, no. 01 (2011): 1–13. http://dx.doi.org/10.1142/s0218126611007037.

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A CMOS low quiescent current low dropout regulator (LDR) with high power supply rejection (PSR) and without large output capacitor is proposed for system-on-chip (SoC) power management applications. By cascoding a power NMOS with the PMOS pass transistor, high PSR over a wide frequency range is achieved. The gate-drive of the cascode NMOS is controlled by an auxiliary LDR that draws only 1 μA from a small charge pump, thus helping in reducing the quiescent current. Adaptive biasing is employed for the multi-stage error amplifier of the core LDR to achieve high loop gain hence high PSR at low f

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Han, Shuai, Zhiyang Li, Kaijie Ding, Tianxiang Cao, and Zhiwei Xu. "A 14-bit 1-GS/s Pipelined-SAR ADC in 28-nm CMOS with Foreground and Background Calibration." Journal of Physics: Conference Series 2613, no. 1 (2023): 012014. http://dx.doi.org/10.1088/1742-6596/2613/1/012014.

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Abstract A 14-bit 1-GS/s Pipelined-Successive Approximation Register (SAR) Analog-to-Digital Converter (ADC) in 28-nm CMOS is presented in this paper. In the initial phase, a pair of SAR ADCs employing the Time-Interleaved (TI) technique are employed to attain the necessary sampling rate. A multi-comparators structure is used to increase the speed and improve the mismatch. We have implemented a foreground calibration technique to address capacitor mismatch, optimizing its processing logic to enhance the chip’s speed. The interstage operational amplifier adopts a two-stage structure. Some struc

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Bai, Jing, Jin Wang, Ji Li, et al. "Strip waveguides in Yb³⁺-doped silicate glass formed by combination of He⁺ ion implantation and precise ultrashort pulse laser ablation." Open Physics 20, no. 1 (2022): 1295–302. http://dx.doi.org/10.1515/phys-2022-0220.

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Abstract Strip optical waveguides were realized in Yb3+-doped silicate glass with ultrashort pulse laser ablation assisted He+ ion implantation. Planar waveguides were first prepared near the glass surface by He+ ion implantation (450 keV + 500 keV + 550 keV), followed by annealing at 260℃. After that, under the processing parameters of 3 μJ energy and 50 μm/s ablation velocity, two parallel tracks with separation of 15, 20, and 25 μm were, respectively, inscribed on the sample, which confine the light in lateral direction to form a strip waveguide. The near-field intensity measurement indicat

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Hu, Shiwei, Hao Wang, and Yanjie Wang. "A Wideband dB-Linear Analog Baseband for a Millimeter-Wave Receiver with Error Compensation in 40 nm CMOS Technology." Electronics 13, no. 24 (2024): 5012. https://doi.org/10.3390/electronics13245012.

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This paper presents a low power wideband dB-linear analog baseband (ABB) circuit for a millimeter-wave (mmW) wireless receiver in 40 nm CMOS technology. The proposed ABB system consists of a multi-stage variable gain amplifier (VGA) and a low-pass filter (LPF). The 5-stage VGA is composed of two variable gain units followed by three fixed gain units with DC offset cancellation (DCOC). The first variable gain unit with a self-compensated transistor pair and compact active inductor load is designed for dB-linear functionality and bandwidth extension, respectively. Moreover, a proposed error comp

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Rikan, Behnam S., David Kim, Kyung-Duk Choi, et al. "A Low-Band Multi-Gain LNA Design for Diversity Receive Module with 1.2 dB NF." Sensors 21, no. 24 (2021): 8340. http://dx.doi.org/10.3390/s21248340.

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This paper presents and discusses a Low-Band (LB) Low Noise Amplifier (LNA) design for a diversity receive module where the application is for multi-mode cellular handsets. The LB LNA covers the frequency range between 617 MHz to 960 MHz in 5 different frequency bands and a 5 Pole Single Throw (5PST) switch selects the different frequency bands where two of them are for the main and three for the auxiliary bands. The presented structure covers the gain modes from −12 to 18 dB with 6 dB gain steps where each gain mode has a different current consumption. In order to achieve the Noise Figure (NF

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Krummrich, Peter M., and Simon Akhtari. "Selection of energy optimized pump concepts for multi core and multi mode erbium doped fiber amplifiers." Optics Express 22, no. 24 (2014): 30267. http://dx.doi.org/10.1364/oe.22.030267.

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HUANG, Fan, Zhirui ZHAO, Jingru FENG, Liang MA, and Sijing DING. "Synthesis and Raman Performance Enhancement of Multilayer AuAg Heterostructures with Magnetic Resonance." Wuhan University Journal of Natural Sciences 28, no. 4 (2023): 351–58. http://dx.doi.org/10.1051/wujns/2023284351.

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Significant amplification of surface enhanced Raman scattering (SERS) signals can be achieved mainly by the electric field enhancement in metal core-shell nanostructures, and the enhanced magnetic field is rarely studied. In this study, we prepared multi-gap Au/AgAu core-shell hybrid nanostructures by using gold nanocup as the core. The overgrowth processes to grow one, two, and three layers of AgAu hybrid nanoshells can produce Au/AgAu1, Au/AgAu2, and Au/AgAu3 heteronanostructures. The strong plasmon coupling between the core and shell leads to significant electromagnetic field enhancement. U

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Blaser, Dunia, Pascal Hänzi, Sönke Pilz, Alexander Heidt, and Valerio Romano. "Multimode Ytterbium–Aluminosilicate Core Optical Fibre for Amplification and Laser Applications." Fibers 11, no. 11 (2023): 95. http://dx.doi.org/10.3390/fib11110095.

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Rare-earth-doped optical fibres are widely used in lasers and amplifiers. The incorporation of ytterbium and aluminium oxide in a high doping concentration has led to the fabrication of a multi-mode (MM) optical fibre. Within this research, the design, preparation and calculation for the production of a fibre with a targeted 45 μm core diameter are explored. By Energy Dispersive X-ray (EDX) analysis, the doping concentrations of the elements in the core have been measured as 60.4 at.% Al and 1 at.% Yb. Supporting micrographs are used for confirming the core/cladding ratio. Based on the atomic

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Kumar, Hardik, Tanya Jain, Mritunjay Sharma, and Kamal Kishor. "Neural network approach for faster optical properties predictions for different PCF designs." Journal of Physics: Conference Series 2070, no. 1 (2021): 012001. http://dx.doi.org/10.1088/1742-6596/2070/1/012001.

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Abstract Photonic Crystal Fibres (PCFs) are emerging as an alternative to standard fibres for applications in many disciplines like fibre lasers & amplifiers, imaging, spectroscopy and telecommunications. They have superior light guiding properties compared to ordinary Optical Fibres (OFs). This paper illustrates the potential of neural networks to efficiently and accurately compute the optical properties of PCFs including solid-core, hollow-core and multi-core designs. The proposed method takes a range of design parameters and wavelengths as input to predict PCF optical properties like ef

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Zhu, Beibei, Michelle Pitts, Michael Buoncristiani, et al. "Abstract 133: GMDS is a key driver of MYCN-amplified neuroblastoma core fucosylation and tumorigenesis." Cancer Research 84, no. 6_Supplement (2024): 133. http://dx.doi.org/10.1158/1538-7445.am2024-133.

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Abstract Introduction: MYCN-amplification (MYCN-amp) is a genetic hallmark of ~40% of high-risk neuroblastomas (NBs). N-MYC is an oncogenic transcription factor and master regulator of metabolism. Glycosylation is a major post-translational modification that is critical for cancer progression, spread, and immune evasion. How genetic signatures such as MYCN-amp alter glycosylation profiles is unknown. Herein, we utilized matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI-MSI) to define the N-linked glycome of MYCN-amp NBs in situ identifying enrichment of core fucosyla

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Dias, Rafael, João Rebola, and Adolfo Cartaxo. "Outage Probability Due to Crosstalk from Multiple Interfering Cores in PAM4 Inter-Datacenter Connections." Photonics 8, no. 1 (2021): 9. http://dx.doi.org/10.3390/photonics8010009.

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In this work, we propose to use four-level pulse amplitude modulation (PAM4) and multi-core fibers (MCFs) to support very high capacity datacenter interconnect (DCI) links. The limitations imposed by inter-core crosstalk (ICXT) on the performance of 112 Gb/s up to 80 km-long optically amplified PAM4 inter-DCI links with intensity-modulation and direct-detection and full chromatic dispersion compensation in the optical domain are analyzed through numerical simulation for high and low skew-symbol rate product (SSRP). With only one interfering core, we show that those PAM4 inter-DCI links achieve

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Cui, Jian, Yu Deng, Zhuo Liu, et al. "First Real-Time 221.9 Pb/S∙Km Transmission Capability Demonstration Using Commercial 138-Gbaud 400 Gb/S Backbone OTN System over Field-Deployed Seven-Core Fiber Cable with Multiple Fusion Splicing." Photonics 12, no. 3 (2025): 269. https://doi.org/10.3390/photonics12030269.

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The core-division-multiplexed (CDM) transmission technique utilizing uncoupled multi-core fiber (MCF) is considered a promising candidate for next-generation long-haul optical transport networks (OTNs) due to its high-capacity potential. For the field implementation of MCF, it is of great significance to explore its long-haul transmission capability using high-speed OTN transceivers over deployed MCF cable. In this paper, we investigate the real-time long-haul transmission capability of a deployed seven-core MCF cable using commercial 138-Gbaud 400 Gb/s backbone OTN transceivers with a dual-po

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LIU, X., and J. S. MARSHALL. "Amplification of three-dimensional perturbations during parallel vortex–cylinder interaction." Journal of Fluid Mechanics 573 (February 2007): 457–78. http://dx.doi.org/10.1017/s0022112006004022.

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A computational study has been performed to examine the amplification of three-dimensional flow features as a vortex with small-amplitude helical perturbations impinges on a circular cylinder whose axis is parallel to the nominal vortex axis. For sufficiently weak vortices with sufficiently small core radius in an inviscid flow, three-dimensional perturbations on the vortex core are indefinitely amplified as the vortex wraps around the cylinder front surface. The paper focuses on the effect of viscosity in regulating amplification of three-dimensional disturbances and on assessing the ability

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Kruspig, Björn, Tiziana Monteverde, Sarah Neidler, et al. "The ERBB network facilitates KRAS-driven lung tumorigenesis." Science Translational Medicine 10, no. 446 (2018): eaao2565. http://dx.doi.org/10.1126/scitranslmed.aao2565.

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KRAS is the most frequently mutated driver oncogene in human adenocarcinoma of the lung. There are presently no clinically proven strategies for treatment of KRAS-driven lung cancer. Activating mutations in KRAS are thought to confer independence from upstream signaling; however, recent data suggest that this independence may not be absolute. We show that initiation and progression of KRAS-driven lung tumors require input from ERBB family receptor tyrosine kinases (RTKs): Multiple ERBB RTKs are expressed and active from the earliest stages of KRAS-driven lung tumor development, and treatment w

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Singh, Deepshikha, Veena Kiran Nambiar, and Chaitali Kadam. "Abstract No: 350 The Double Burden: Cardio-Onco Rehabilitation (Core) Challenges for Low Middle-Income Countries (LMICS) Cancer Survivors." Journal of Society of Indian Physiotherapists 9, no. 1 (2025): 124. https://doi.org/10.4103/jsip.jsip_2025_vol_abstract_s68.

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Purpose: To review and highlight the broad framework of CORE, for mitigating the cardiotoxic side effects of chemotherapy and radiation therapy in cancer survivors. Relevance: Cardiovascular risks like heart failure and myocardial infarction are progressively prevalent among cancer patients, specifically in LMICs. This overlap between cardiovascular diseases and cancer arises from shared risk factors like smoking, hypertension, sedentary lifestyle, which amplifies the cardiotoxic effects of chemotherapy drugs. CORE is proven globally, contributing advanced integrative approaches to manage thes

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