Sources and detectors in the range of 300-10,000 GHz pose a unique challenge to implementation as semiconductor devices. Transistor oscillators do not have the bandwidth to generate these frequencies/wavelengths and optical devices do not have energy gaps small enough to provide effective… More

Phased arrays radars can expect considerable improvements with RF photonics. Current TR modules use numerous MMIC chips, ferrite circulators and phase shifters and quasi-optical true-time-delay (TTD). Transmission power distribution and synchronization across multiple RF interfaces can be improved. … More

Optical switching fabrics (optical cross-connects) require arrays of highly interconnected optical switching devices. Such fabrics require a high density of optical and electronic interconnect. The optical switching devices are also required to switch configurations in sub-ns time intervals to… More

The digital signal processor is currently dominated exclusively by CMOS technology. This is largely due to the fact that it is the only low power (VLSI density) technology available. However, CMOS is near the end of its scaling potential and it has a severe liability for space applications due to a… More

The digital signal processing and static memory is currently dominated exclusively by CMOS technology with the 6-T cell implementing all static memory. CMOS is the only VLSI technology. However, CMOS is near the end of its scaling potential and it has a severe liability for space applications due to… More

CDMA is a successful network technology for the wireless industry which relies totally on conventional integrated circuits. The same architecture is equally appealing for telecommunications and is considered an optimum choice for next generation FTTH networks if only low cost implementations were… More

IR imagers currently require hybrid read-out integrated circuits (ROIC's)and additional separate AD converters (ADC) to provide transmittable data formats to digital signal processors (DSP's). The DSP is currently dominated exclusively by CMOS technology as the only high density low power … More

Optical switching fabrics describe arrays of interconnected optical switches that enable input signals to be directed to output ports with optimal flexibility. Such arrays avoid the use of OE conversions and circuit-switched connections by allowing the optical data stream to pass through the fabric… More

Optoelectronic integrated holds the key to higher performance, reduced mass and radiation-hard space systems. A special need is increased flexibility of phased arrays for communication and detection. Currently RF arrays use ferrite waveguide elements for phase shifting which are both bulky and… More

Optoelectronic integrated circuits offer radiation-hard solutions for satellite systems with much improved SWPB (size, weight, power and bandwidth). The phased array for sensing and data transfer is one system that optoelectronics can impact in the near term. It is known that optical delay could… More