Operation of two copper vapor lasers by a single magnetic modulator

Copper vapor lasers are often operated in oscillator-amplifier configuration. Proper synchronization is a critical issue for such systems, and different solutions have appeared in literature, in general of high complexity and costly. We propose here another solution: operating two lasers by a single modulator. At a certain stage, the circuit is split into two branches by means of coupled inductors. The proposed circuit allows distribution of energy between the two branches according to a pre-defined ratio, and conservation of this ratio even if nonlinearities appear in the branches. We present the theoretical analysis of the circuit and a complete design procedure. An experimental circuit is also described.