The beam splitter splits and then recombines infrared radiation, while the detector picks up the resulting signal. It's sensitive to both intensity and frequency. Together, they decide just how accurately an instrument captures those unique infrared “fingerprints” from different. 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 often classified according to their construction: cube or plate. Beamsplitters separate incident light into two or more beams of the same wavelength. This division allows for the simultaneous analysis or utilization of the light's properties along two separate paths.
[pdf] A practical, engineering-focused guide to planning and installing underground fiber optic cables with the right cable structure, trench design and protection level for long-life, low-risk networks. Match trench method with the correct underground fiber structure (GYTS, GYTA53, GYTY53, micro-duct). Underground cables are pulled in conduit that is buried underground, usually 1-1. 2 meters (3-4 feet) deep to reduce the likelihood of accidentally being dug up.
[pdf] 
