The CH-1 Cube Beamsplitter Holder is an indispensable tool in the optics laboratory. It's modular design allows optics that are commonly used with beamsplitters, such as wave plates, polarizers, filters, lenses, and mirrors to be quickly attached and removed. Used in conjunction with an affordable assortment of standard 1 inch (25.4 mm) diameter optics, the cube holders quickly convert into a broad range of general optical devices. Diagrams and sample order lists for three of the most common configurations are shown: an optical isolator, T-splitter, and variable attenuator/beamsplitter. The cube beamsplitter holder’s external thread is compatible with our RSP Series, 481-A, and RS65 Rotation Stages for precise rotation of a beamsplitter cube.