From Practice for Practice

Make light matter

BeamXpertDESIGNER was developed by Dr. Eppich according to the needs of the employees of the Ferdinand-Braun-Institut in their daily practical work in connection with the shaping, guidance and collimation of laser diode radiation. Furthermore, BeamXpertDESIGNER has already impressively proven its reliability and usefulness in the field of laser development, laser material processing, data transmission and metrology to 50 users in other research institutes and companies in its beta versions. The feedback of the beta testers has continuously led to the further development and improvement of BeamXpertDESIGNER.

Outcome: Increased added value through significantly accelerated workflow!

Use Cases

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Collimation of Diode Laser Radiation

In order to apply the high beam quality of diode lasers, the highly divergent radiation has to be formed to a parallel laser beam first. This collimation is typically done by one or more microlenses. Using improper lenses can significantly detoriate the beam quality supplied by the laser diode.

With the help of BeamXpertDESIGNER, the lenses best suited for this use can be determined. In addition, the effect of possible lens misalignments on the beam quality can be quantitatively determined.

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Fiber Coupling

The ability to couple laser radiation into fibers allows the separation of the laser beam generation location from the beam application location. This is a great advantage in practice. To couple the laser radiation into the fiber, the laser radiation has to be transformed to a spot with a precisely specified size and has to hit the fibre core as precisely as possible. The size of the spot and the degradation of the beam quality caused by the aberration of the fiber optic coupler depend on the lenses used.

Both can be calculated with BeamXpertDESIGNER. In addition, it is possible to quantitatively estimate the losses during coupling due to misalignment of the lenses.

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Frequency Conversion

In certain wavelength ranges, laser radiation cannot be generated directly or only with great technical difficulties. Instead, laser radiation is generated in an easily accessible wavelength range and converted into the desired wavelength range using nonlinear crystals. In order to achieve optimum conversion efficiencies, the laser radiation must be focused into the crystal while closely defined parameters (focus diameter and position, Rayleigh length, etc.) are maintained.

With BeamXpertDESIGNER it is possible to determine the necessary lens combinations quickly and reliably.