Abstract
A generic method for the continuously variable, long microwave-photonic delay of the impulse response of arbitrarily chirped waveforms is proposed and demonstrated. Nonlinear-frequency-modulated waveforms of 500 MHz bandwidth are delayed by tens of nanoseconds. The principle relies on the specific phase-time relations of the waveforms, and is applicable to chirped pulses of arbitrary durations, central radio frequencies, and bandwidths. The approach is suitable for beam steering in large phased-array antennas.
Original language | English |
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Pages (from-to) | 3939-3941 |
Number of pages | 3 |
Journal | Optics Letters |
Volume | 37 |
Issue number | 19 |
DOIs | |
State | Published - 1 Oct 2012 |