Progress in Development of Mulitple-Quantum-Well Retromodulators for Free-Space Data links

We present an update on the progress of the development of the Naval Research Laboratory's (NRL's) multiple-quantum-well retromodulators for compact, low-power communications. We report results for data-in-flight on a small, unmanned aerial vehicle at up to 5 Mbps, in preparation for real-...

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Bibliographic Details
Main Authors: Gilbreath, G C, Rabinovich, William S, Meehan, Timothy J, Vilcheck, Michael J, Stell, Mena, Mahon, Rita, Goetz, Peter G, Cochrell, Kerry, Lucke, Robert L, Mozersky, Sharon
Format: Report
Language:English
Subjects:
CAT'S EYE RETROMODULATORS
DATA LINKS
DRONES
FREE-SPACE OPTICAL COMMUNICATIONS
INFLIGHT
LOW POWER
MODULATORS
MQW(MULTIPLE QUANTUM WELLS)
MRR(MODULATING RETROREFLECTORS)
MULTIPLE QUANTUM WELLS
OPTICAL COMMUNICATIONS
Quantum Theory and Relativity
REPRINTS
RETROREFLECTORS
Telemetry
UAV(UNMANNED AERIAL VEHICLES)
VIDEO SIGNALS
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Summary:We present an update on the progress of the development of the Naval Research Laboratory's (NRL's) multiple-quantum-well retromodulators for compact, low-power communications. We report results for data-in-flight on a small, unmanned aerial vehicle at up to 5 Mbps, in preparation for real-time video transfer using an array of devices. This data was taken at Chesapeake Bay Detachment. We also report transference of color video using wavelet compression at 15 and 30 frames/s, at 4 to 6 Mbps in the lab, at eye-safe intensity levels. The unit is a corner cube modulator using a 980-nm shutter. A five-element array was used for the data-in-flight. First results of our 1550-nm devices are also presented as progress in a cat's eye retromodulator. Published in Optical Engineering, v42 n6 p1611-1617, Jun 2003. Prepared in collaboration with Research Support Instruments, Inc., Lanham, MD; Jaycor, Inc., McLean, VA; and ITT Industries, Alexandria, VA. Sponsored in part by Defense Advanced Research Projects Agency (DARPA).