A device for generating a light beam having several wavelengths includes a beam recombiner arrangement for recombining several laser light beams having different wavelengths. A multi-phase scheduling capability is provided in which during a first phase, weights are assigned to the reusable resources, and during a second phase, the jobs are scheduled. The relay is open upon applying power to the filter and remains open while the capacitor at least partially charges to cause charging current to pass through the resistor and thereby limit in-rush current.