Effect of the lateral dimension on the grating formation and stability in the double-phase-conjugate mirror: application to interconnects between single-mode fibres

We develop a phenomenological model of the double-phase-conjugate mirror gr ating formation based on geometrical considerations. We show that the grati ng develops from one lateral side of the interaction zone towards the other side. This model is confirmed by the behaviour of different configurations of a 2-zone double-phase-conjugate mirror. Finally, we obtained stable ope ration in InP:Fe, this made it possible to implement a 1 x 8 switch between single-mode fibres at telecom wavelength with 12% global efficiency and 20 0 ms reconfiguration time.