Hello there everybody, iam a doctor. I want to assemble a laser for surgical treatments.i belong to a middle class family so i cant afford costly laser equipments. So i want to assemble a laser equipments my requirements are fiber coupled laser diode module 1W 650nm pilot beam with 7W power at fiber end, fiber size 400 micron average,the problem with me is laser module is available but how do i make custum output watts controller with laser driver which can regulate laser power from 0.1W to 7W, meaning adjustable power watts in steps of 0.1W.so pls pls pls experts guide me...