Related Experiment Videos
Optical true time delay for phased-array antennas: demonstration of a quadratic White cell
Betty Lise Anderson1, Craig D Liddle
1Department of Electrical Engineering, Ohio State University, Columbus 43210, USA. anderson@ee.eng.ohio-state.edu
Applied Optics
|August 29, 2002
Abstract:
We have demonstrated a proof-of-concept optical device that can produce true time delays for a phased-array radar. This device combines White cells of differing lengths with a spatial light modulator to select between the paths on multiple bounces of a given beam. The approach can handle thousands of light beams and produce hundreds of different delays. The number of delays is proportional to the square of the number of bounces.