In 3DOptix noncollinear SFG/DFG Modules, two parallel incoming beams hit a spherical lens that focuses them on a nonlinear crystal. The second harmonic output is generated exactly on the 3Doptix grid, allowing an easy and accurate alignment. In 90721 module, the interval between the parallel incoming beams is 0.75’’/18.75 mm and the optical lens is based on 1’’/25mm optics, whereas in the 90722 module the interval between the parallel incoming beams is 1.5''/37.5mm and the optical lens is based on 2’’/50mm optics.
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