In our proposed approach, changing the microwave carrier
frequency can be easily and quickly achieved by changing the
wavelength of the TLS. To demonstrate the frequency agility,
the carrier frequency of the binary and the quadratic phase-
coded, and the linearly frequency-chirped microwave waveform
is tuned from 10 to 15 GHz by changing the wavelength of the
TLS, and the experimental results are shown in Figs. 7, 8, and
9, respectively.