A5079768013- Photonic and Optical Devices
- Advanced Photonic Communication Systems
- Infrared Target Detection Methodologies
- Advanced Fiber Laser Technologies
- Semiconductor Lasers and Optical Devices
- CCD and CMOS Imaging Sensors
- Optical Systems and Laser Technology
- Adaptive optics and wavefront sensing
- Advanced Semiconductor Detectors and Materials
- Optical Network Technologies
- Advanced Image Processing Techniques
- Advanced Battery Technologies Research
- Electric Vehicles and Infrastructure
- Energy Harvesting in Wireless Networks
- Advanced optical system design
- Optical Coatings and Gratings
- GaN-based semiconductor devices and materials
- Magnetic Field Sensors Techniques
- Advanced Optical Sensing Technologies
- Medical Imaging Techniques and Applications
- Astronomical Observations and Instrumentation
- Electrical and Bioimpedance Tomography
- Non-Destructive Testing Techniques
- Advanced MEMS and NEMS Technologies
- Photorefractive and Nonlinear Optics
University of Delaware
2012-2024
Chip Design Systems (United States)
2019
For electric vehicle (EV) charging in North America, three AC connectors are standardized, resulting a proliferation of stations which can only charge one the types EV. We propose “Universal EV Outlet” that works with an “carry along” cable—one end cable has connector specific to user’s EV, other plug for Universal Outlet. This proposal does not interfere with, nor require change to, any existing stations. It new inlets on EVs. The components already standardized. Eight use cases examined...
The demand for high-speed and/or high-temperature infrared (IR) scene projectors has led to the development of systems based on IR light-emitting-diode (LED) arrays. Using mid-wave (3--5 μm) superlattice LED arrays, a 512 × pixel projection system operating at 100 Hz been fully developed. These LEDs, flip-chip bonded read-in integrated circuit, display temperatures up 1350 K when cooled liquid nitrogen temperature (77 K). custom drive electronics and packaging, array nonuniformity corrected...
We have developed a system for generating widely tunable, narrow-line RF signals from pair of injection-locked lasers. This is based on injection seeding one laser with selectable high-order sideband obtained second that phase modulated by narrow-line, low-frequency reference oscillator. When these coherent optical outputs are mixed fast photodiode, output obtained, linewidth and noise characteristics limited the The can be tuned over wide range, in multiples frequency, fine-tuned tuning In...
Generating radio-frequency signals over the entire spectrum, from 1 to 100 GHz, typically requires use of multiple oscillators designed only for specific narrow bands operation within that spectrum. An optoelectronic system based on modulation side-band-injection-locked lasers is capable generating RF frequencies tunable a span more than seven octaves with low phase noise . We present results our efforts develop heterogeneously integrated version this silicon-photonic circuit coupled III-V...
"Lucky-region" fusion (LRF) is a synthetic imaging technique that has proven successful in enhancing the quality of images distorted by atmospheric turbulence. The LRF algorithm extracts sharp regions an image obtained from series short exposure frames, and fuses into final, improved image. In our previous research, had been implemented on PC using C programming language. However, did not have sufficient processing power to handle real-time extraction, reduction required when was applied...
By mixing two lasers together it, is possible to generate RF signals from near DC hundreds of GHz. Through the use a narrow-linewidth low-frequency oscillator, optical modulator, and injection locking, much higher frequency outputs can be produced that still retain narrow linewidth low oscillator. Here we focus on design implementation an integrated device including photonic sources modulators realize system described above. Specifically, report creation tunable silicon platform with...
Infrared scene projectors (IRSPs) are a critical laboratory tool for setup, calibration, and testing of infrared sensors. light emitting diode evolving to handle higher resolution, faster frame rates, cooling power. New cryogenic packaging that can support these advanced features is needed. This paper describes new package design enables resolutions rates. The resulting modifications the IRSP system hardware described.
A system for generating widely tunable, narrow-line RF signals from a pair of injection-locked lasers has been developed. By injection seeding one laser with sideband obtained second that is phase modulated by spectrally pure low-frequency reference oscillator and then mixing these coherent optical outputs on fast photodiode, the same linewidth noise characteristics as can be produced. using harmonics output tuned over much wider range than while maintaining its narrow linewidth.Here we...
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Infrared scene projectors (IRSP) are critical laboratory tools used for setup, calibration, and testing of infrared imaging systems. This paper highlights a multi-platform solution handling higher resolutions, faster frame rates; creating modular scalable hardware architecture to drive current future
We have developed a system for generating widely tunable, narrow-line RF signals from pair of injection-locked lasers. Here we focus on the design and implementation an integrated module analysis produced RF.
Through the use of a narrow-linewidth low-frequency oscillator, optical modulator, and injection locking, we have developed system for generating widely tunable, narrow-line RF signals from pair injection-locked lasers. Here focus on design implementation an integrated device including photonic sources modulators to realize described above. Specifically, report creation mixing two tunable lasers silicon platform with heterogeneously gain medium realized in III-V material system.
Infrared scene projectors using LEDs instead of resistor arrays are a new technology that is gaining popularity within the infrared projection community. This paper describes two approaches to increase spatial resolution, pixel density, and efficiency LED OnSemi .18 transistor technology.
Infrared LED Scene Projector (IRSP) system is an emerging technology that has made numerous progress in its development and testing. That ranges from fabrication evaluation steps to improve the electronics as well improvements 1K×1K 2K×2K hybrid arrays.
Atmospheric turbulences can significantly deteriorate the performance of long-range conventional imaging systems and create difficulties for target identification recognition. Our in-house developed adaptive optics (AO) system, which contains high-performance deformable mirrors (DMs) fast stochastic parallel gradient decent (SPGD) control mechanism, allows effective compensation such turbulence-induced wavefront aberrations result in significant improvement on image quality. In addition, we...
Certified electric vehicle power converters can inject DC current into the AC grid if they fail. Verification of injection by supply equipment be a cost-effective extra measure to ensure quality from variety plugged-in vehicles. As typically performs high-accuracy revenue energy metering, we propose that measurement and with single sensor is most economically efficient design. This article presents an integrated shunt sensing system separation signals for concurrent metering detection. It...
Building an Infrared Scene Projector (IRSP) requires reliable electronics. Our Closed System Electronics (CSE) is designed to be modular and scalable drive current future IRSPs. This work highlights the production, performance, packaging, hardware developments of our CSE.
In this effort, we describe our recent progress towards demonstrating optical gain in erbium-doped lithium niobate and its potential for use Erbium-Doped Waveguide Amplifiers (EDWAs) lasers. By introducing erbium into niobate, have the both at telecom wavelengths electro-optic modulation a single material. This has many possible applications, including high speed, narrow band tunable lasers RF generation other applications. We focus on grown presence of available with uniform doping profile...
The architecture of an optically addressed ultra-wideband (2-40 GHz) phased array, based on microwave photonic down-conversion techniques, is described. For such a the transmitter module consists antenna, photodiode, and power amplifier. A metamaterial-loaded Vivaldi antenna having tailored, broad, flat-top radiation pattern broad impedance bandwidth presented. Additionally, integration photodiodes amplifiers capable operation at high speed with measured results indicate that can achieve...
Infrared scene projector (IRSPs) are critical laboratory tools for setup, calibration and testing of infrared imaging systems. Projectors progressing to handle higher resolution, faster frame rates improvement in thermal performance. This work highlights the new cryostat design how this effects systems hardware.
We propose and show preliminary test results on a system to improve dynamic range signal noise ratio (SNR) in an infrared (IR) light-emitting diode (LED) display by splitting the digital-to-analog conversion between close-support electronics (CSE) read-in integrated-circuit (RIIC).
Infrared scene projector(IRSPs) are critical laboratory tools for setup, calibration and testing infrared imaging systems. These projectors progressing to handle higher resolution, faster frame-rates improvement in thermal performance. This hardware architecture is a configurable scalable solution used drive these high-speed