The devices on this page feature two legs of polarization-maintaining (PM) fiber on one side of a calcite prism and a single mode (SM) fiber on the other. The legs on the side with the two PM fibers have the slow axis of the fiber aligned for maximum transmission of one polarization. Thorlabs offers a wide range of optical beamsplitters. Our plate beamsplitters have a coated front surface that determines the beam splitting ratio while the back surface is wedged and AR coated in order to minimize ghosting and interference effects. Light. 1x 2 PLC Fiber Splitter, Standard FHD® Cassette, LC/APC, Singlemode, for Optical LAN Planar Lightwave Circuit (PLC) Splitter is a type of passive optical component using silica optical waveguide technology to distribute optical signals from Central Office (CO) to multiple premise locations. An Optical Beamsplitter is an optic or optical device that is used to split a beam of light in two. Newport offers a wide variety of Beamsplitters in various shapes. Circular beamsplitters, plate beamsplitters and cube beamsplitters can be purchased for polarizing or non polarizing beamsplitting. We offer a full line of fiber optic couplers and splitters supporting SM, MM, PM, large core, and double-clad fibers across 300–2000 nm, with power handling up to 100 W and operating temperatures up to 300°C. Three fabrication methods are employed: fusion, micro-optics, and planar lightwave circuit. A beamsplitter is an optic that splits light into 2 directions.