ARLINGTON, Va. - Officials at the Defense Advanced Research Projects Agency (DARPA) have selected Phasebridge Inc., to further the development of an optical RF Quadrature Phase-Shift-Keyed (QPSK) technique and analyze its applications in a new generation of ultra-wideband and frequency-agile military radio systems. This technique will be used to imprint data during the frequency synthesis process in such “photonic radios.”

Phasebridge specializes in advanced photonic integration technologies including optical devices and subsystems for analog radio-frequency (RF) signal processing and optical-fiber transmission.

“Under this new contract, we will optimize the implementation of QPSK modulation as it pertains to ultra-wideband RF photonic heterodyne frequency synthesis and RF photonic frequency conversion,” says Phasebridge Founder and Chief Technology Officer Ron Logan. “The Photonic Radio system architecture then integrates these frequency synthesis and conversion methods into a system that permits a baseband-frequency terminal to access channel frequencies over an extremely wide range of microwave through millimeter-wave channel frequencies.”

This wide frequency range will reduce the size, weight, and power consumption of today’s military radio communications by combining the functions of multiple radio systems into one and by replacing heavy copper cable with optical fiber, thereby improving the portability of military radio communications. Phasebridge officials say.

For more information visit www.phasebridge.com.