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A novel approach is presented to generate linearly-chirped microwave waveforms with tunable center frequency and expandable time-bandwidth product (TBWP). Different types of waveforms are demonstrated and the maximum measured TBWP is up to ∼166.4.
A widely tunable optoelectronic oscillator based on balanced detection is proposed and experimentally demonstrated. A frequency tunable range from 4 GHz to 16 GHz is achieved. The phase noise of the generated signal is reduced to about −105 dBc/Hz.
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