USING FIBERS AS DELAY ELEMENTS IN OPTICAL TRUE-TIME DELAY DEVICES BASED ON THE WHITE CELL

摘要

The present invention provides for a delay unit for optically generating time delays in signals comprising: a delay entrance plan e, the delay entrance plane comprising at least one row of signa l input positions, wherein each signal input position is adapted to receive an optical beam from a source; a delay exit plane, the delay exit plane comprising a respective number of rows of sign al output positions, each signal output position is adapted to output the optical beam; and wherein each signal input position of a given row is connected by an optical fiber to a corresponding s ignal output position, each optical fiber of a given row being the same length as every other optical fiber of that row. Also provided are apparatus and methods for generating time delays in signals.