BS079 30:70 (R:T) Non-Polarizing Beamsplitter Cube; 20 mm 400-700nm

The BS079 is a non-polarizing beamsplitter cube, designed and manufactured by Thorlabs. This beamsplitter cube is a crucial component in various optical systems, facilitating the division of an incident light beam into reflected and transmitted components. The BS079 boasts a cube side of 20 mm, making it compatible with a wide range of optical setups.

The beamsplitter features a 30:70 (R:T) splitting ratio, meaning that approximately 30% of the incident light is reflected, while the remaining 70% is transmitted. This ratio is consistent across the cube's operational wavelength range of 400-700 nm, centered around the common laser wavelength of 633 nm. This broad wavelength range makes the BS079 versatile and suitable for various applications.

The BS079's surfaces are coated with Thorlabs' proprietary tho cbs bbar400-700 coating on all sides, ensuring high-quality performance and durability. The cube's hypotenuse faces are further protected with tho 3070nbk7cbs40070 and tho cbs bbar400-700 coatings, enhancing its resistance to wear and tear.