There are many ready made beam expanders available on the market, but often they are not available in the required expansion ratio or spectral range. Depending on the power level of your laser, standard or High-Energy beam . We use either an air spaced two lens system or an achromat in order to minimize chromatic and spherical aberrations and reach diffraction limited performance. All our beam expanders have adjustable divergence. The design is Galilean, which means there is no .
In this figure, the radius of the laser beam is exaggerated for clarity.
This style of beam expander is called Galilean.
Beam expanders are used in applications such as laser scanning, interferometry, and remote sensing. Contemporary laser beam expander designs are afocal systems that . Our fixed-magnification, rotating-lens optical beam expander optics have broadband AR coatings for either the VIS or NIR. We also offer variable- magnification beam expanders and reflective beam expanders.
These laser beam expanders can be used with CW and pulsed laser sources and incorporate large input and . Another point to note is the radius of half maximum, or intensity, which is 0. At 2ω or twice the Gaussian radius, the intensity is 0. This greatly improves resolution — which is especially critical for applications like holography and optical data processing. It is the angle measured between the normal to the surface (interface) and the incoming light beam (see figure). In the case that nis smaller than n the light is bent towards the normal. If nis greater than n the light is bent away from the normal (see figure below). In the applications described here, we will assume that we are working with ideally thin lenses.
This should be sufficient for an introductory discussion. Use this calculator to get the size and location of your Gaussian laser beam waist at focus, as well as the Rayleigh range. Input parameters are explained further by mousing-over the information (i) icon. New DA Fixed YAG Beam Expanders. New LC Fixed YAG Beam Expander Kits.
Research -Grade Variable Beam Expanders. UDA Fixed Broadband Beam Expanders. Laser Diode Fixed Beam Expanders .
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