Fig. 3 | Nature Communications

Fig. 3

From: Breaking the limitation of mode building time in an optoelectronic oscillator

Fig. 3

Experimental results. a Spectrum of a generated X-band frequency-scanning microwave waveform with a span of 10 GHz. b Spectrum with a span of 200 kHz. c Temporal waveform of the periodically and continuously chirped microwave waveform, the inset shows a section of the waveform. d Real-time frequency distribution. e The compressed pulse by autocorrelation (inset: zoom-in display)

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