Design and demonstration of an optical true-time-delay device based on an octic-style white cell

• Published in: Journal of lightwave technology Vol. 24; no. 2; pp. 982 - 990
• Main Authors: Mital, R., Warnky, C.M., Anderson, B.L.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.02.2006; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; Array signal processing; Arrays; beam steering; Camber; Circuit properties; Delay; Design methodology; Devices; Electric, optical and optoelectronic circuits; Electronics; Exact sciences and technology; Glass; Integrated optics. Optical fibers and wave guides; Lenses; mi-croelectromechanical devices; Micromirrors; Optical and optoelectronic circuits; Optical arrays; optical delay lines; Optical design; Optical devices; optical signal processing; Optical wavelength conversion; phased-array radar; Polynomials; Tilt; Trains; Tilt angle; Array signal processing; beam steering; microelectromechanical devices; phased-array radar; Optical delay lines; Delay time; optical signal processing; Microoptics; Electromechanical system; Delayed time
• ISSN: 0733-8724; 1558-2213
• DOI: 10.1109/JLT.2005.861912

A methodology for designing an octic-style optical true-time-delay (TTD) device based on the White cell (WC) is investigated. The octic cell is a "polynomial" cell, one of the two classes of TTD White cells. This octic cell is designed to produce a maximum of 6399 delays in 17 bounces, with a unit delay of 3 ps. Glass blocks are used for short delays, white lens trains are used for the longer delays. The octic cell is designed to use a microelectromechanical tip/tilt micromirror array to direct light beams into various delay paths.