Splitters can be made with either fibers permanently attached to each port (pigtail style) or with receptacles on each port that one can plug your fiber into (receptacle style). Beamsplitters are often classified according to their construction: cube or plate. Also known as optical splitters, fiber splitters, or beam splitters, these devices are integrated waveguides ensuring wide bandwidth and minimal loss in high-frequency applications. It is a crucial part of many optical experimental and measurement systems, such as interferometers, also finding widespread application in fibre optic telecommunications. Light from an input fiber is first collimated, then sent through a beam splitting optic to divide it into two. The resultant output beams are then focused back into the output fibers. a laser beam) into two (or sometimes more) beams, which may or may not have the same optical power (radiant flux). For a lossless beam splitter, R + T = 1.
[PDF Version]