The TSI Model FBL-3 fiberlight™ Multicolor Beam Generator provides high power handling capacity in a compact easy-to-align package. It needs no vertical or horizontal alignment in the beam path. Frequency shift is built in, and all six beams are permanently internally aligned. Six fiberoptic couplers are included with the FBL-3. These represent over ten years of refinement and offer reliable fiber coupling, with easier optimization even if a fiber is removed from the coupler.