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We study the controllable output field generation from a cavitymagnomechanical resonator system that consists of two coupled microwaveresonators. The first cavity interacts with a ferromagnetic yttrium iron garnet(YIG) sphere providing the magnon-photon coupling. Under passive cavitiesconfiguration, the system displays high absorption, prohibiting outputtransmission even though the dispersive response is anamolous. We replace thesecond passive cavity with an active one to overcome high absorption, producingan effective gain in the system. We show that the deformation of the YIG sphereretains the anomalous dispersion. Further, tuning the exchange interactionstrength between the two resonators leads to the system's effective gain anddispersive response. As a result, the advancement associated with theamplification of the probe pulse can be controlled in the close vicinity of themagnomechanical resonance. Furthermore, we find the existence of an upper boundfor the intensity amplification and the advancement of the probe pulse thatcomes from the stability condition. These findings may find potentialapplications for controlling light propagation in cavity magnomechanics.

Gain assisted controllable fast light generation in cavity magnomechanics