You don't have to ever do this but if you want to, here's how!You don't have to ever do this but if you want to, here's how!📦 For purchasing, use the RP Photonics Buyer's Guide for beam splitters. It provides an expert-curated supplier directory, buyer-focused technical background information, and structured selection criteria to support professional procurement decisions. This type of beamsplitter deforms much less when subjected to. A beam splitter or beamsplitter is an optical device that splits a beam of light into a transmitted and a reflected beam. It is a crucial part of many optical experimental and measurement systems, such as interferometers, also finding widespread application in fibre optic telecommunications. Beamsplitters are common components in laser or illumination systems. One beam is typically reflected while the other is transmitted.