This paper discusses the development of a wavelength division multiplexing (WDM) communication systems for high- speed multimedia information delivery applications. This system multiplexes NTSC video, RGB video, audio, and network data (ATM/OC-3, FDDI) onto a single fiber to provide multimedia communications between remote locations.
This paper will review the deployment, demonstration, and test of an Asynchronous Transfer Mode (ATM) network to support the Air National Guard `Global Yankee' field exercise held at Fort Drum, New York. The network provided forty five (45) megabit per second (mbps) ATM connections between the Air Operations Center (AOC) and Forward Operating Location (FOL) located at Fort Drum, the State University of New York (SUNY) Health Science Center located in Syracuse, New York and Rome Laboratory located in Rome, New York. Connections were made with both fiber and free space equipment. The fiber connections used were part of the existing ATM New York Network (NYNet) between Rome Lab, SUNY Health Science Center and NYNEX Corporation. This network was extended to Watertown, New York by NYNEX to provide connectivity to Fort Drum. The free space links were provided by commercial DS-3 (45 mbps) radios, and 2 to 6 mbps Troposcatter Satellite Support Radios (TSSRs). This paper will also discuss significant digital Command, Control, Communications and Intelligence enhancements to the battlefield provided by the deployed ATM network. For example, videoconferencing and shared workspace capability was demonstrated over the AOC-to-FOL TSSR link, enabling remote intelligence briefings, pilot Battle Damage Assessment, and Search and Rescue coordination. Remote Medical Diagnostics videoconferencing with MRI high resolution digital imagery was demonstrated between the FOL, AOC, and SUNY Health Science Center. Finally, the network provided connectivity between the AOC and the Joint Surveillance System (JSS) radar's located at Griffiss Air Force BAse. The JSS data combined with the Rome Lab developed Radar Analysis Program provided AOC personnel with air picture areas of interest.
A 3:8 multiplex (MUX) data router operating at 100 MHz has been successfully demonstrated in the laboratory. A primary goal of this program was to show how `smart' optical interconnect technology could be implemented using address decoding as a detector. As a predecessor to crossbar technology, an optical MUX architecture based on global (4- dimensional), `smart' GaAs optoelectronic interconnect technology has been developed using high performance optoelectronic computing (HPOC) modules configured in an asynchronous transfer mode (ATM) protocol.
A demonstration hardware with high-speed, multiple optical data links was built for board-to-board optical interconnect operations. There are two types of optical interconnect paths in this hardware: interboard and backplane interconnects. It was demonstrated that multiple 500/550 MHz signals can be simultaneously transmitted in both the interboard and the backplane configurations.
Proc. SPIE. 1704, Advances in Optical Information Processing V
KEYWORDS: Holograms, Holography, Digital signal processing, Logic, Optical signal processing, Digital holography, Computer programming, Signal processing, Symbolic substitution, Content addressable memory
This paper will review the results of an 18 month program which developed and demonstrated a compact size general purpose Holographic-Based Digital Optical Processor, HBDOP. The HBDOP was developed to accommodate a number of different holograms. Three Holograms were developed; one performs parallel symbolic substitution for hetero-associative memory recall, a second performs 64 node hypercube interconnection network operation, and the third performs 64 node mesh-interconnected multiprocessor operation. The 64 node hypercube interconnect operation will not be discussed in this paper. The demonstrated systems utilize N**4 holographic array recording to achieve massive interconnection parallelism not achievable with VLSI technology. Significant results of the program included the demonstration of 64 digital optical processors operating in parallel to perform digital operations such as morphological functions, simple target tracking, and noise removal operations using simple logic functions while simultaneously communicating through a mesh interconnection network. The demonstration of a 32 X 32 hologram array containing inter-pattern associations to act as an interconnection weight matrix for symbolic substitution and associative memory recall operations. The demonstration of a 64-node hypercube interconnection network by using the N**4 hologram array to achieve 3-D parallel interconnection. Finally, the development of an automatic system for N**4 holographic array recording. The automatic recording system is capable of recording one hologram element in 10 seconds.
The integration of optical/optoelectronic processing functions for operating on multiple C3I signals/data including surveillance, electronic support measures, communication, intelligence, and imaging is addressed. The C3I optical processor is capable of operating in a broad spectrum of signals (HF to IR) provided by multispectral passive sensors, bistatic ESM, IR cameras, and multimode/band radars. The processor meets processing requirements for multifunction airborne surveillance and advanced space sensor systems. Attention is also given to optical processors for adaptive null steering, adaptive beamforming, and general purpose computation.