Competition and coexistence of multiple mutually pumped oscillations in the visible and infrared

In recent years the idea of coupling between incoherent beams has attracted a great deal of attention. A number of photorefractive conjugators and oscillators have been proposed1,2 with the doublephase-conjugate mirror (DPCM)3 and its modified version, the double-colour-pumped-oscillator (DCPO)4, as one of the most popular ones. In both of these configurations, two new beams are simultaneously self-generated due to the interaction of the two mutually incoherent input beams.