  Quasi-two-dimensional superconductors with tunable spin-orbit coupling are
very interesting systems with properties that are also potentially useful for
applications. In this manuscript we demonstrate that these systems exhibit
undamped collective spin oscillations that can be excited by the application of
a supercurrent. We propose to use these collective excitations to realize
persistent spin oscillators operating in the frequency range of 10 GHz - 1 THz.
