Patent ID: 8400355

Claim:
A passive optical true time delay system comprising: at least one means for generating light at a plurality of optical wavelengths; each one of said plurality of optical wavelengths having a plurality of predetermined optical paths associated therewith; said each one of said plurality of optical wavelengths being utilized for entering at least one of said plurality of predetermined optical paths; at least one modulator for modulating said light at said plurality of optical wavelengths, only one of said plurality of optical wavelengths being generated by each said at least one means for generating light at a plurality of optical wavelengths; means for distributing said modulated light at said each one of said plurality of optical wavelengths into a different said at least one of said plurality of predetermined optical paths according to said each one of said plurality of optical wavelengths of said light; each of said at least one of said plurality of predetermined optical paths incorporates an optical path length to achieve a predetermined optical propagation time interval, selection of each of said at least one of said plurality of predetermined optical paths being determined by optical wavelength; means for selecting and optically detecting said modulated light having at least one of said plurality of optical wavelengths; and said means for selecting and optically detecting said modulated light having said at least one of said plurality of optical wavelengths outputting a plurality of radio frequency energies, each of said radio frequency energies relating to a different said predetermined optical propagation time interval.