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.

© 2002 Optical Society of America

Polynomial-based optical true-time delay devices with microelectromechanical mirror arrays

Betty Lise Anderson and Rashmi Mital
Appl. Opt. 41(26) 5449-5461 (2002)

Demonstration of a linear optical true-time delay device by use of a microelectromechanical mirror array

Amber Rader and Betty Lise Anderson
Appl. Opt. 42(8) 1409-1416 (2003)

Design and demonstration of a switching engine for a binary true-time-delay device that uses a White cell

Richard Higgins, Niru K. Nahar, and Betty Lise Anderson
Appl. Opt. 42(23) 4747-4757 (2003)

Optically produced true-time delays for phased antenna arrays

Betty Lise Anderson, Stuart A. Collins, Elizabeth A. Beecher, Charles A. Klein, and Stephen B. Brown
Appl. Opt. 36(32) 8493-8503 (1997)

Design of delay elements in a binary optical true-time-delay device that uses a White cell

S. Kunathikom, B. L. Anderson, and S. A. Collins
Appl. Opt. 42(35) 6984-6994 (2003)