Accession Number : ADA315615

Title :   Two-Dimensional Optical Switching and Logic Arrays for Communication and Computing Systems.

Descriptive Note : Final rept. 1 Aug 91-31 Jul 96,

Corporate Author : NEW MEXICO UNIV ALBUQUERQUE CENTER FOR HIGH TECHNOLOGY MATERIALS

Personal Author(s) : Cheng, Julian

PDF Url : ADA315615

Report Date : 06 SEP 1996

Pagination or Media Count : 42

Abstract : This program began with the objective of developing a novel two dimensional optical smart pixel technology that would offer the potential for achieving very- compact, very high information throughput, parallel optical data processing architectures. The technology we had chosen was based on the monolithic integration of vertical-cavity surface-emitting lasers (VCSELs) with other photonic and electronic technologies. We played a leading role in the development of monolithic optoelectronic integrated circuit (OEIC) technology based on VCSELs, including heterojunction photo transistors (HPTs) and photothyristors (PNPNs), PIN and MSM photodiodes, resonance-enhanced photodetectors, and heterojunction bipolar transistor (MBT) technology. During the course of developing these technologies, we also played a role in advancing the state-of-the-art in- VCSEL technology, which was then (in 1991) in a nascent phase of development. Our major contribution to VCSEL technology occurred in 1991, when we became the first group in the world to achieve a significant improvement in the electrical characteristics of VCSELs by the continuous compositional grading of the heterointerfaces using MOCVD growth. This early impetus allowed us to achieve many different high-performance optoelectronic devices based on VCSELs, including several families of optical switches with latching, non-latching, and bistable characteristics (1991), monolithic optical logic gates (1992), reconfigurable optical routing switches (1993), programmable optical logic gates (1994), high- speed optical transceivers (1995), an optically cascaded multi-stage switching fabric (1995), and a cascadable programmable optical logic gate array (1995). Amongst our other contributions to VCSEL technology included the development of high-performance cryogenic VCSELs (1994) and cryogenic optical data links (1995), and the use of

Descriptors :   *TWO DIMENSIONAL, *ARRAYS, *OPTICAL SWITCHING, VELOCITY, ELECTRONICS, OPTICAL PROPERTIES, HIGH RATE, ELECTROOPTICS, PERFORMANCE(ENGINEERING), HETEROJUNCTIONS, COMPUTER PROGRAMMING, GATES(CIRCUITS), INTEGRATED CIRCUITS, OPTICAL COMMUNICATIONS, OPTICAL DATA, ELECTRICAL PROPERTIES, INTEGRATION, THROUGHPUT, PHOTONS, LOGIC CIRCUITS, ROUTING, MONOLITHIC STRUCTURES(ELECTRONICS), DATA LINKS, LOGIC, PHOTODIODES, CRYOGENICS, TRANSMITTER RECEIVERS, INFORMATION PROCESSING, BIPOLAR TRANSISTORS, BISTABLE DEVICES, PHOTOTRANSISTORS.

Subject Categories : Electrooptical and Optoelectronic Devices

Distribution Statement : APPROVED FOR PUBLIC RELEASE