Rare earth ions embedded in crystals are natural high-quality-factor resonators that can be used for processing optically-carried broadband radio-frequency signals. This chapter focuses on the radio-frequency spectrum analysis function and describes different architectures that are designed to reach tens of gigahertz instantaneous bandwidth with… (More)
Figure 21. Experimental spectrum of an input RF signal containing 10 frequencies. Single shot record. Time translates into frequency with the coefficient 2.67 MHz/µs. The first peak on the left corresponds to the optical carrier (RF frequency =0).