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检索条件"任意字段=Conference on Multifrequency Electronic/Photonic Devices and Systems for Dual-Use Applications"

共 83 条记录，以下是1-10 订阅

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Enhanced photonic Accelerator Design for Efficient Vector-Matrix Multiplication in Deep Learning

Enhanced Photonic Accelerator Design for Efficient Vector-Ma...

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conference on photonic Computing - From Materials and devices to systems and applications

作者： Wang, Jing Zhang, Hao Zhang, Wenwen Univ British Columbia Dept Mech Engn Vancouver BC Canada Univ British Columbia Dept Elect & Comp Engn Vancouver BC Canada Univ Calif Los Angeles Dept Elect & Comp Engn Los Angeles CA USA

ISBN: (纸本)9781510678866;9781510678873

Matrix multiplication with weights is a fundamental operation in deep neural networks, crucial for tasks reliant on data-driven modeling. However, computational limitations often hinder these operations. To address this, we propose photonics neural networks, offering faster processing speeds compared to electronic systems. Our paper aims to develop two distinct photonic neural networks. We use micror-ing resonators as neurons, exploiting their varied transmission properties for weight updates. Our experiments achieved a maximum transmission drop of approximately 0.7 dBm and a maximum spectral shift of around 1 nm per voltage change. Furthermore, we propose and explore two methods for implementing summation and non-linear activation using photonics devices with various materials, investigating the design constraints associated with each approach. Our experimental results corroborate our simulation predictions, validating the feasibility of our designs.

关键词： Microrings Neurons Design Artificial neural networks Photodetectors Modulators Waveguides Wavelength division multiplexing Microresonators Resonators

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Orbital angular momentum beams multiplexing and demultiplexing using hybrid optical-electronic neural network

Orbital angular momentum beams multiplexing and demultiplexi...

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conference on photonic Computing - From Materials and devices to systems and applications

作者： Ye, Jiachi Kang, Haoyan Altaleb, Salem Wang, Hao Patil, Chandraman Madadi-Kandjani, Ehsan Heidari, Elham Asadizanjani, Navid Dalir, Hamed Univ Florida Dept Elect & Comp Engn Gainesville FL 32611 USA Calif State Univ Long Beach Dept Mech & Aerosp Engn Long Beach CA 90840 USA

ISBN: (纸本)9781510678866;9781510678873

Recent advancements in optical communications have explored the use of spatially structured beams, especially orbital angular momentum (OAM) beams, to achieve high-capacity data transmission. Traditional electronic convolutional neural networks (CNNs), while effective, face significant challenges in demultiplexing OAM beams efficiently, notably their high power consumption and substantial computational time, which can limit real-time processing capabilities in high-speed optical communication systems. In this study, we propose a hybrid optical-electronic CNN that integrates Fourier optics convolution for intensity recognition-based demultiplexing of multiplexed OAM beams under simulated atmospheric turbulence. Experimental results showed that the proposed hybrid neural network system achieves a 69% demultiplexing accuracy under strong turbulence conditions while exhibiting a three times reduction in training time compared to all-electronic CNNs. This study underscores the potential of a hybrid optical-electronic neural network to enhance both performance and efficiency in OAM-based optical communication systems.

关键词： OAM demultiplexing hybrid CNN Fourier optics atmospheric turbulence

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Enabling space-qualified opto-electronic systems through photonic wirebonding 17

Enabling space-qualified opto-electronic systems through pho...

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conference on Sensors and systems for Space applications XVII

作者： Sherman, Jes Rosborough, Victoria Gans, Ruby Ramirez, Juan Kebort, Don Sitwell, Geoffrey Musolf, Juergen Garrett, Henry Liu, Tom McEwen, Caleb Cooper, Trevor Nehrir, Amin Morrison, Gordon Johansson, Leif Mashanovitch, Milan Freedom Photon 41 Aero Camino Santa Barbara CA 93110 USA NASA Langley Res Ctr 4 South Marvin St Hampton VA 23681 USA

ISBN: (纸本)9781510674431;9781510674424

applications such as LIDAR, ranging/ sensing, and optical communications all require photonic components, such as sources, detectors, and modulators, to be integrated into a single system. For spaceborne applications, SWaP (size, weight and power) is a key consideration: a monolithic indium phosphide (InP) photonic integrated circuit (PIC) can integrate many components onto a chip with a footprint of a few square mm. photonic wirebonding (PWB) enables seamless integration of best-in-class optical devices from disparate materials. Connecting and mode-matching different photonic components enables versatility and functionality unachievable by other methods, facilitating co-packaging. PICs and PWBs do not yet have spaceflight heritage: demonstrating increased technology readiness level (TRL) is a key step toward use in orbital and spaceborne missions. Freedom photonics presents our first hermetic photonic wirebonded PIC package, alongside recent environmental testing results demonstrating that our PIC and PWB technologies are suitable for the harsh conditions of launch and spaceflight: shock, vibration, radiation, and temperature cycling.

关键词： photonics space packaging photonic wirebonding lasers tunable lasers

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Deep-Learning-based VCSEL transmitter emulator

Deep-Learning-based VCSEL transmitter emulator

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2023 conference on Lasers and Electro-Optics Europe and European Quantum electronics conference, CLEO/Europe-EQEC 2023

作者： Deligiannidis, Stavros Argyris, Nikos Dris, Stefanos Kalavrouziotis, Dimitrios Bakopoulos, Paraskevas Mesaritakis, Charis Bogris, Adonis Department of Informatics and Computer Engineering University of West Attica Aghiou Spiridonos Egaleo Athens12243 Greece NVIDIA Ermou 56 Athens10563 Greece University of the Aegean Dept. Information and Communication Systems Engineering Palama 2 str. Samos Karlovasi83200 Greece

ISBN: (纸本)9798350345995

The design of photonic/opto-electronic structures is a crucial field of research due to the wide range of applications in which these devices are utilized, such as communications, sensing and imaging. The traditional approach to design, which involves numerical simulation and iterative adjustments, is both time-consuming and computationally intensive. The ability to design-emulate photonic structures quickly and efficiently could bring new technologies to market at a faster pace and can also facilitate the process of extracting critical performance metrics from complex fabricated devices. The Vertical Cavity Surface Emitting Laser (VCSEL) and its use as a transmitter broadly used in data center interconnects is an example of a rather complex nonlinear system also exhibiting bandwidth limitation mechanisms attributed to its frequency response and parasitic effects, and thus its numerical simulation based on conventional rate equations can only partially approximate its behavior. When it comes to modelling fabricated devices, such physical models are notoriously difficult to parameterize in order to fit to observed laboratory data;in contrast, the emulation of the experimentally recorded behavior with the use of nonlinear models based on neural networks provides a much more efficient path to modelling, and with potentially higher prediction accuracy [1]. In this work, two types of bidirectional recurrent neural networks (RNN), namely Long Short-Term Memory (bi-LSTM) and Vanilla (bi-VRNN) were used to simulate the dynamic behavior of an experimentally characterized VCSEL-based, PAM-4 transmitter, exhibiting a high prediction accuracy approaching 100%. © 2023 IEEE.

关键词： Frequency response

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Experimental Demonstration of Optical Modulation Format Identification Using SOI-based photonic Reservoir

Experimental Demonstration of Optical Modulation Format Iden...

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2023 Optical Fiber Communications conference and Exhibition, OFC 2023

作者： Von Hünefeld, Guillermo Ronniger, Gregor Seker, Enes Thomas, Rijil Safari, Pooyan Sackey, Isaac Khan, Md Mahasin Suckow, Stephan Lemme, Max Stahl, David Schubert, Colja Fischer, Johannes Karl Freund, Ronald HHI Fraunhofer Institute for Telecommunications Einsteinufer 37 Berlin10587 Germany Technical University of Berlin Photonic Communication Systems Berlin10587 Germany Advanced Microelectronic Center Aachen AMO GmbH Aachen52074 Germany RWTH Aachen University Electronic Devices Aachen52074 Germany ID Photonics GmbH Neubiberg85579 Germany

We experimentally show modulation format identification of optical signals using silicon-on-insulator (SOI) photonic-integrated-circuit-based reservoir. After 100-km SSMF transmission, we achieve identification of 32 ... 详细信息

ISBN: (纸本)9781957171180

关键词： Silicon on insulator technology

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CHARACTERIZATION AND RELIABILITY ANALYSIS OF DIRECT-WRITE ADDITIVELY PRINTED FLEXIBLE HUMIDITY SENSOR WITH SUPER CAPACITIVE MATERIAL FOR WEARABLE ASTRONAUT SENSOR IN HARSH ENVIRONMENTS

CHARACTERIZATION AND RELIABILITY ANALYSIS OF DIRECT-WRITE AD...

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ASME International Technical conference and Exhibition on Packaging and Integration of electronic and photonic Microsystems (InterPACK)

作者： Lall, Pradeep Jang, Hyesoo Hill, Curtis Auburn Univ Dept Mech Engn NSF CAVE3 Elect Res Ctr Auburn AL 36849 USA QuaniTech Inc Jacobs Space Explorat Grou ESSCA Contract NASA MSFC Huntsville AL 35808 USA

ISBN: (纸本)9780791886557

Using additive technologies to fabricate printed circuit boards eliminates the need for expensive manufacturing - software-based design and production permit production flexibility, as well as quicker tool modifications and design evolution. In addition, additive printing techniques can be applied to various surfaces and shapes. This adaptability to a wide range of applications enables the construction of novel applications, such as biosensors, by designers. Several previous studies have focused on developing additively printed humidity sensors because of their potential for flexibility and integration. Flexure in the operating environment has been known to cause performance degradation in prior generations of temperature and humidity sensor technologies. This study uses the direct write printing method with a nScrypt printer to print the humidity sensor. Characterization of the sensor has been done by studying the process-performance interactions of temperature coefficient to resistance and sensitivity to humidity. Sensor accuracy, hysteresis, repeatability, linearity, and stability have been quantified concerning printing recipe and encapsulation. A folding reliability test has been conducted to assess the viability of the sensor in operation to mimic real-life use conditions. The cyclic folding motions are administered every 13 seconds with the same folding diameter and travel distance on every three samples, with single trace and multi-trace sensing materials and trace with polyimide encapsulation. Furthermore, chemo-electrical measurement with cyclic voltammetry method has been conducted to assess water possession under high humidity conditions. It is found that encapsulation might help improve the humid and mechanical reliability of the additively printed humidity sensor.

关键词： Additive Fabrication Printed electronics Substrate Materials Sensors and Actuators Biosystems and Biomedicine Materials Interactions and Characterization Reliability of devices systems Reliability Modelling and Simulation Reliability Test Methods

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Single Vanadium Dioxide Nanoparticle-Enabled Plasmonic switch with Thermal and electronic Reconfigurability

Single Vanadium Dioxide Nanoparticle-Enabled Plasmonic switc...

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Optoelectronics and Communications conference, OECC

作者： Gregory Tanyi Daniel Peace Han-Hao Cheng Guanghui Ren Xuan Hiep Dinh Mohammed Taha Arnan Mitchell Karsten Hoehn Christina Lim Ranjith Unnithan Department of Electrical and Electronic Engineering Faculty of Engineering and Information Technology The University of Melbourne Parkville VIC Australia Mineral Resources Commonwealth Scientific Industry and Research Organiasation Australian Research Council Centre of Excellence for Engineered Quantum Systems & School of Mathematics and Physics The University of Queensland St Lucia Queensland Australia Centre for Microscopy and Microanalysis The University of Queensland St Lucia Australia Integrated Photonics and Applications Centre School of Engineering RMIT University Melbourne Victoria Australia

ISBN: (数字)9798350308396

ISBN: (纸本)9798350308402

We present an integrated switch that combines plasmonic and neuromorphic technologies with a single sub-stoichiometric VO2-x nanoparticle. The presented device acts as a versatile plasmonic switch with dual thermal and electrical reconfigurability leveraging the near-room temperature phase transition of the VO2-x nanoparticles combined with the rapid phase recovery to drive the device. The change in both the optical and electrical properties of the VO2-x nanoparticle enables simultaneous optical and electrical readouts making the plasmonic device suitable as a phase change memory cell which is crucial in the convergence of computing and communication technologies. Our demonstration of reversible electrical switching, evidenced by a 6dB modulation depth and concurrent optical and electrical outputs, signifies a major stride in merging electronic and photonic functionalities within phase-change material devices. This novel strategy not only harmonizes optical communication with electronic computing but also advances the development of sophisticated integrated neuromorphic devices.

关键词： Phase change materials Nanoparticles Neuromorphic engineering Optical switches Vanadium Plasmons Nanoscale devices Optical modulation Optical devices Switching circuits

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Optomechanical Inertial Sensors Based on Ring Resonators: Design Approaches and Technology

Optomechanical Inertial Sensors Based on Ring Resonators: De...

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Thermal, Mechanical and Multiphysics Simulation and Experiments in Micro-electronics and Micro-systems EuroSimE

作者： Alexey Shaporin Roman Forke Julia Wecker Franz Tank Tom Seifert Karla Hiller Anne-Katrin Schumann Chris Stöckel Danny Reuter Department Multi Device Integration Fraunhofer Institute for Electronic Nano Systems Chemnitz Germany Department Nano Device Technologies Fraunhofer Institute for Electronic Nano Systems Chemnitz Germany Center for Micro and Nano Technologies Chemnitz University of Technology Chemnitz Germany

ISBN: (数字)9798350393002

ISBN: (纸本)9798350393019

This paper is dedicated to the integration of photonic components into Micro-Electro-Mechanical systems (MEMS) to develop high-performance inertial sensors, particularly for autonomous vehicle applications. Traditional MEMS sensors face limitations in electrical signal conversion. Optomechanical sensing, which couples mechanical motion with optical detection, offers enhanced sensitivity, reduced noise, and improved stability. By embedding optical components directly into the MEMS structure, we aim to address these advantages for improved performance, to be first demonstrated for a sensor/actuator test structure compatible for acceleration measurement. The paper describes in detail the design and fabrication process, incorporating electrostatic actuators, sensors and optical ring resonators into OptoMEMS. Comprehensive simulations use ANSYS Mechanical for mechanical and electrostatic part with a coupling to ANSYS Lumerical to convert mechanical deformations into optical resonance shifts. Preliminary fabrication and measurement results validate the simulation concept, demonstrating the feasibility of this integrated optomechanical approach.

关键词： Micromechanical devices Mechanical sensors Optical design Inertial sensors Optical feedback Optical device fabrication Optical variables measurement Optical coupling Optical sensors Optical ring resonators

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IoT-Based Spin-Coater for Thin Films Fabrication

IoT-Based Spin-Coater for Thin Films Fabrication

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Power, Electrical, and electronics and Industrial applications (PEEIACON), IEEE International conference on

作者： M. R. H. Mahadi M. M. Zaman M. F. Hossain M. A. Alam M. Hasan H. M. Z. Arefin Dept. of Electrical and Electronic Engineering Rajshahi University of Engineering and Technology Rajshahi Bangladesh

ISBN: (数字)9798331517984

ISBN: (纸本)9798331517991

This paper outlines the development of a low-cost Internet of Things (IoT)-based spin-coater for thin film deposition. Compared to existing commercial microcontroller-based spin-coaters, the standout feature of this spin-coater is its ability to connect with the user for system control and data input via hotspot/Wi-Fi/Bluetooth and to store data for future use. This spin-coater can be operated remotely inside a glovebox for device fabrication, providing superior monitoring of the spin-coating process through smartphones or web browsers. ZnO thin films have been deposited on a glass substrate using IoT-based and commercial spin-coaters. The structural, optical, and surface morphological properties of the ZnO films can be compared for both systems. The experimental data shows comparable transmittance and absorbance, a 3.19 eV bandgap energy, and a 23.99 nm larger crystallite structure compared to a 3.18 eV bandgap energy of 21.68 nm in the commercial spincoater. The SEM images reveal a nanofiber structure. The system is simple, lightweight, and cost-effective, eliminating the need for a vacuum pump as required by commercial systems.

关键词： Costs X-ray scattering Vacuum systems II-VI semiconductor materials photonic band gap Velocity control Glass Zinc oxide Optical fiber devices Substrates

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Graphene-based Materials for Advanced electronics

Graphene-based Materials for Advanced Electronics

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Delhi Section conference (DELCON), IEEE

作者： Ajay Ajay Jyoti Sharma Sharad Sharma Lavanya Krishan Sharma Department of Chemistry MMEC Maharishi Markandeshwar (Deemed to be University) Ambala Haryana India Department of Electronics and Communication MMEC Maharishi Markandeshwar (Deemed to be University) Ambala Haryana India Department of Aerospace Engineering Punjab Engineering College Chandigarh India

Graphene is an arrangement of graphite atoms tucked in a single layer and a promising wonderful material for various applications. It has amazing capabilities in terms of conductivity, robustness, thermal conductivity, great electron mobility etc. It is a strong material yet lightweight and flexible. This 2D material is million times smaller than human hair. It is showing numerous advantages over conventional material silicon and a potential replacement. Its extraordinary properties have been explored which are consequently useful in fuel-cells, super-capacitors, transportation, defense, medicine, energy, photovoltaic devices and many more. This paper reflects the properties of this wonderful material followed by the applications in different domains of life. The primary focus is the extensive exploration of graphene applications in electronics. The focus of this review is on electronic applications of graphene and its derivatives in numerous arenas like fuel cells, supercapacitors, batteries, photovoltaic devices, photonic devices etc. and how graphene made these already in use appliances more efficient and improve research in this direction.

关键词： Photovoltaic systems Wearable computers Graphene Fuel cells Transportation Supercapacitors Conductivity

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