Dual-function detector-modulator smart-pixel module.
نویسندگان
چکیده
We describe a smart-pixel circuit that permits the use of a GaAs/AlGaAs multiple quantum well diode to be used both as a detector for data input and a modulator for data output. The module provides the ability to double the number of inputs or outputs to the array and is well suited to cascaded optoelectronic system architectures that require bidirectional communition.
منابع مشابه
Demonstration and architectural analysis ofcomplementary metal-oxide semiconductorymultiple-quantum-well smart-pixel array cellularlogic processors for single-instructionmultiple-data parallel-pipeline processing
We present an optoelectronic-VLSI system that integrates complementary metal-oxide semiconductory multiple-quantum-well smart pixels for high-throughput computation and signal processing. The system uses 5 3 10 cellular smart-pixel arrays with intrachip electrical mesh interconnections and interchip optical point-to-point interconnections. Each smart pixel is a fine grain microprocessor that ex...
متن کاملHolographic Random Access Memory (HRAM)
We examine the present state of holographic random access memory (HRAM) systems and address the primary challenges that face this technology, specifically size, speed, and cost. We show that a fast HRAM system can be implemented with a compact architecture by incorporating conjugate readout, a smart-pixel array, and a linear array of laser diodes. Preliminary experimental results support the fe...
متن کاملCompact Holographic Read/Write Memory
We examine the primary challenges for building a practical and competitive holographic random access memory (HRAM) system, specifically size, speed, and cost. We show that a fast HRAM system can be implemented with a compact architecture by incorporating conjugate readout, a smart-pixel array, and a linear array of laser diodes. It provides faster random access time than hard disk (100 microsec...
متن کاملMotion Vision Sensor Architecture with Asynchronous Self - Signaling Pixels
A custom CMOS imager with integrated motion computation is described. The architecture is based on correlating in time moving edges. Edges are located in time by a custom sensor, and correlated in a coprocessing module. The sensor architecture is centered around a compact pixel with analog signal processing and digital self-signaling capabilities. The sensor pixels detect moving edges in the im...
متن کاملAdaptive Dynamic Range Imaging: Optical Control of Pixel Exposures Over Space and Time
This paper presents a new approach to imaging that significantly enhances the dynamic range of a camera. The key idea is to adapt the exposure of each pixel on the image detector, based on the radiance value of the corresponding scene point. This adaptation is done in the optical domain, that is, during image formation. In practice, this is achieved using a spatial light modulator whose transmi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Applied optics
دوره 36 20 شماره
صفحات -
تاریخ انتشار 1997