Title :
Microwave true time-delay modulator using fibre-optic dispersion
Author :
Esman, R.D. ; Monsma, M.J. ; Dexter, J.L. ; Cooper, David G.
Author_Institution :
US Naval Res. Lab., Washington, DC, USA
Abstract :
A new method for providing a continuously variable, true time delay for radio frequency (RF), microwave, and millimetre wave signals using fibre optics is proposed and demonstrated. Variation in time delay up to 1.7 ns and millisecond-order modulation speeds are demonstrated for signals to 20 GHz.
Keywords :
delays; laser beam applications; microwaves; optical dispersion; optical fibres; optical modulation; 1.7 ns; 20 GHz; MM-wave signals; RF signals; chromatic dispersion; continuously variable; fibre-optic dispersion; microwave signals; millimetre wave signals; millisecond-order modulation speeds; narrowband optical source; optical fibres; time-delay modulator; true time delay;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19921219
