The 355nm wavelength and photon energy of 3.5 eV yields a threefold higher affinity for lesion tissue than for vessel endothe-lium. This means that the 355nm laser can cause photomechanical ablation in lesions while practically avoiding photochemical dissociation. Beamtech Nimma-LVI with three kinds of OEM functional laser modules ,(1064nm fundamental laser, 355nm UV harmonic generator and fiber coupler) provides you optional optimized choices to guarantee your OEM LVI medical system performance.