Principle of Beam Splitting by Diffraction Beam Splitter
In its most common form, a cube, a beam splitter is made from two triangular glass which are glued together at their base using polyester,, or urethane-based adhesives. If so, the output beam array becomes an array of focused spots at a certain distance. It is a crucial part of many optical experimental and measurement systems, such as interferometers, also finding widespread application in fibre optic telecommunications. Because the working principle of these components is based on diffraction of the incident light by these patterned surfaces, DOE beam shapers and beam splitters can be designed to be much thinner and lighter than their refractive counterparts, but the small structure sizes required make them. A diffractive optical element (DOE) uses thin micro-structure patterns to alter the phase of the light that is prop-agated through it. Light transmitted by a DOE can be reshaped to almost any desired distribution, just by diffraction and the.
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