The authors report on a design and demonstration of a quartic-style optical true-time-delay device based on a White cell. This device is designed for 81 sequential time delays with an incremental delay of 243 ps and a maximum delay of 19.683 ns. The time delays are implemented by free-space translations, with lens trains as needed for beam containment. A digital microelectromechanical tilting micromirror array is used to send the light into different delay paths.
© 2006 IEEE
Carolyn M. Warnky, Rashmi Mital, and Betty Lise Anderson, "Demonstration of a Quartic Cell, a Free-Space True-Time-Delay Device Based on the White Cell," J. Lightwave Technol. 24, 3849-3855 (2006)