Injection locking of an optically pumped FIR laser

Phase locking of optically pumped far-infrared lasers to highly stable synthesized signals is an interesting goal, at least for metrological purposes. In this paper, the possibility of obtaining such a stabilization by injection of the reference signal into the laser is investigated, and from the results obtained, it is inferred that this technique can be efficiently used in the frequency range up to 1 THz.