68-549 15 x 15mm 30:70 (R:T) N-BK7 Standard Cube Beamsplitter; t=15mm 400-700nm

The 68-549 is a standard cube beamsplitter offered by Edmund Optics, designed for use in the 400-700nm wavelength range. This beamsplitter is characterized by its 15mm x 15mm geometry, with a thickness of 15mm, making it a compact and robust solution for various optical applications.

The beamsplitter features a 30:70 (R:T) splitting ratio, meaning it reflects 30% of the incident light and transmits 70%. This ratio is consistent across the entire specified wavelength range, ensuring predictable and reliable performance. The beamsplitter is constructed from N-BK7 Schott glass, a common and versatile material in optical systems due to its excellent optical properties and broad transmission range.

The coating of the beamsplitter is a standard MgF2 coating on all surfaces, providing a high level of durability and resistance to environmental factors. This coating is designed to maintain the specified reflectance and transmittance values across the operational wavelength range.

In terms of shape, the 68-549 is a cube beamsplitter, which is a popular choice due to its ease of use and integration into optical systems. The cube design also provides excellent stability and alignment capabilities, making it suitable for a wide range of applications.

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