Depending on the type of diffractive element, the tuner module can be placed before or after DOE. The basic principle is to finely adjust the beam diameter – this in turn can adjust the spot size or, in the case of multi-spots, the separation angle.
DOE fine tuner for lasers
For many applications there is a need to fine tune the output parameters of the laser, with diffractive optical elements the laser output can be controlled very precisely but without flexibility. Holo/Or has developed a new solution – a DOE tuner for wavelengths between 266 and 1,064nm.