BS053 30:70 (R:T) Non-Polarizing Beamsplitter Cube; 0.5 inch 700-1100nm

The BS053 is a non-polarizing beamsplitter cube, designed and manufactured by Thorlabs. This beamsplitter cube is part of the extensive catalog of optical elements offered by 3DOptix, a leading provider of advanced optical simulation software.

The BS053 features a cube side of 0.5 inches, or approximately 12.7 millimeters, making it compatible with a wide range of optical systems. It is designed to operate within the wavelength range of 700 to 1100 nanometers, encompassing a broad spectrum of light sources.

The beamsplitter has a reflection coefficient of 0.3, indicating that approximately 30% of the incident light will be reflected, while the transmission coefficient is 0.7, meaning that about 70% of the light will be transmitted. This 30:70 (R:T) split ratio is ideal for many applications where balanced light division is required.

The BS053 is coated with a broadband anti-reflection coating (BBAR) on all surfaces, specifically designed for the 700-1100nm wavelength range. This coating reduces unwanted reflections and increases the overall efficiency of the beamsplitter.

The beamsplitter cube is made from n-BK7 Schott glass, a material known for its excellent optical properties and high damage threshold. This ensures the BS053 can withstand rigorous use in various environments.